GMAT Flashcards: Quant, Verbal & Data Insights Decisions
300 original flashcards for current-format GMAT Quant, Verbal, and Data Insights concepts, cues, and reusable decisions.
O tomto balíčku
GMAT Flashcards: Quant, Verbal & Data Insights Decisions
Build quick recall for the current GMAT with 300 original cards across Quantitative Reasoning, Verbal Reasoning, and Data Insights. The deck focuses on reusable concepts and decisions; full-length practice belongs in official or properly licensed question banks.
What the cards map
- Quant maps numeric forms, terms, rules, and formulas to their meaning, conditions, or use. Short scenarios ask for the operation, equation, or answer check that fits.
- Verbal maps passage and argument cues to purpose, scope, evidence, inference, reasoning flaws, and evaluation moves.
- Data Insights maps targets, constraints, source and display cues, metrics, and evidence states to the interpretation or decision they support. It covers Data Sufficiency, Multi-Source Reasoning, Table Analysis, Graphics Interpretation, and Two-Part Analysis.
Learning order
The mixed sequence keeps all three sections in rotation. Quant foundations come before algebra, models, and strategy checks; passage reading comes before argument evaluation; shared data literacy comes before the five Data Insights formats. Closely related prompts are spaced apart so one card does not cue the next.
Current-format boundary
This deck has no geometry lessons or formula drills, Sentence Correction, or the retired Integrated Reasoning section. It also excludes timing, scoring, test-center policy, full passages, large data sets, and response-pattern tricks.
Every card is an original compact concept or decision prompt. No official or competitor questions, answer choices, explanations, mark schemes, curriculum text, logos, or trade dress were copied or adapted. See the official GMAT exam content and Data Insights preparation guidance for the current exam boundary.
This is an independent, unofficial study resource. It is not affiliated with, endorsed by, or sponsored by the Graduate Management Admission Council (GMAC). GMAT is used only to identify the exam.
Kartičky v tomto balíčku
Kartička 1
Otázka
Which numerator-and-denominator operation creates an equivalent fraction?
Odpověď
Multiply or divide the numerator and denominator by the same nonzero number. The fraction's value stays unchanged.
Kartička 2
Otázka
What does data sufficiency ask you to determine?
Odpověď
Whether the information guarantees one answer. You usually don’t need to calculate that answer.
Kartička 3
Otázka
How do you form a passage's main idea?
Odpověď
Combine the passage's central topic with its main claim about that topic. The answer should cover the whole passage at the right level.
Kartička 4
Otázka
What does multiplying a decimal by 10ⁿ do when n is a positive integer?
Odpověď
It moves the decimal point n places to the right. Dividing by 10ⁿ moves it n places left.
Kartička 5
Otázka
What makes information sufficient for a value question?
Odpověď
It forces exactly one value for the target. Different values that satisfy all conditions make it insufficient.
Kartička 6
Otázka
How do you identify the passage's primary purpose?
Odpověď
Name what the author is doing with the topic: explaining, comparing, challenging, defending, or proposing. Keep content and action together.
Kartička 7
Otázka
How do you find p percent of a quantity q?
Odpověď
Compute (p/100) × q. Translate “of” as multiplication.
Kartička 8
Otázka
How can two valid cases prove insufficiency?
Odpověď
Make the cases produce different answers to the question. One clean counterexample pair is enough.
Kartička 9
Otázka
How do you determine a paragraph's role?
Odpověď
Connect the paragraph to what comes before and after it. Decide whether it introduces, supports, qualifies, contrasts, applies, or concludes the larger discussion.
Kartička 10
Otázka
A total of 45 is split in the ratio 2:3. What are the two parts?
Odpověď
18 and 27. The five ratio units are worth 45 ÷ 5 = 9 each.
Kartička 11
Otázka
Why can an integer restriction change sufficiency?
Odpověď
It removes noninteger possibilities. A range containing many real numbers may contain only one integer.
Kartička 12
Otázka
When is a product of signed factors negative?
Odpověď
Provided no factor is zero, an odd number of negative factors gives a negative product, while an even number gives a positive product. If any factor is zero, the product is zero.
Kartička 13
Otázka
How should two data-sufficiency statements be tested initially?
Odpověď
Test each statement independently against the stem. Do not carry information from one statement into the other.
Kartička 14
Otázka
What makes an integer greater than 1 prime?
Odpověď
It has exactly two positive divisors: 1 and itself.
Kartička 15
Otázka
What should you do first on a detail question?
Odpověď
Return to the relevant lines and read their local context. Memory tends to preserve the topic while blurring qualifications.
Kartička 16
Otázka
What is the divisibility rule for 2?
Odpověď
The last digit must be even: 0, 2, 4, 6, or 8.
Kartička 17
Otázka
How do you test whether a fact is relevant?
Odpověď
Connect it to the requested target. A true fact that does not narrow the target adds no decision value.
Kartička 18
Otázka
How far may a reading inference go beyond the text?
Odpověď
Only as far as the text strongly supports. Prefer the smallest justified step and reject claims needing outside knowledge.
Kartička 19
Otázka
Why is prime factorization useful in GMAT arithmetic?
Odpověď
It exposes divisibility, factors, greatest common factors, least common multiples, and perfect powers.
Kartička 20
Otázka
What must happen before quantities with different units are combined?
Odpověď
First confirm that their dimensions are compatible, then convert them to a common unit. Keep the unit attached through the calculation to catch mismatches.
Kartička 21
Otázka
How do you apply a passage principle to a new case?
Odpověď
Extract the principle's required conditions, then test whether the new case has them. Surface similarity isn't enough.
Kartička 22
Otázka
Which relationship connects distance, rate, and time?
Odpověď
Distance = rate × time. Rearrange only after the units are compatible.
Kartička 23
Otázka
How do you find a least common multiple from prime factorizations?
Odpověď
Take every prime that appears, using the largest exponent present.
Kartička 24
Otázka
How do you multiply powers with the same base?
Odpověď
Add the exponents: aᵐ × aⁿ = aᵐ⁺ⁿ.
Kartička 25
Otázka
How is a weighted average computed?
Odpověď
Divide the total weighted value by the total weight. For groups, use group size as the weight unless another weight is given.
Kartička 26
Otázka
What should a quick passage map record?
Odpověď
Each paragraph's role and major viewpoint, plus the passage's overall direction. Record structure, not a sentence-by-sentence summary.
Kartička 27
Otázka
What does the principal square root symbol √x return?
Odpověď
For real x ≥ 0, it is the nonnegative number whose square is x. For example, √9 = 3, not ±3.
Kartička 28
Otázka
When can bounds replace exact arithmetic?
Odpověď
When the bounds separate the viable decisions. Stop once every value in the interval leads to the same choice.
Kartička 29
Otázka
How do you keep viewpoints separate?
Odpověď
Attach each claim to its speaker: author, critic, researcher, or group. Track agreement, disagreement, and any later qualification.
Kartička 30
Otázka
How do “sum,” “product,” and “quotient” translate into algebra?
Odpověď
They mean addition, multiplication, and division, respectively.
Kartička 31
Otázka
How do you reduce a fraction to lowest terms?
Odpověď
Divide the numerator and denominator by their greatest common factor.
Kartička 32
Otázka
What evidence should determine the author's tone?
Odpověď
Evaluative words, qualifications, and the treatment of competing views. Topic alone doesn't establish approval, concern, or skepticism.
Kartička 33
Otázka
When should rounding usually occur?
Odpověď
At the end, unless estimation already settles the decision. Early rounding can move a result across a cutoff.
Kartička 34
Otázka
How do you convert a terminating decimal to a fraction?
Odpověď
Write the digits over the matching power of 10, then reduce. For example, 0.375 = 375/1000 = 3/8.
Kartička 35
Otázka
When should you stop calculating in a sufficiency problem?
Odpověď
As soon as uniqueness is proved or disproved. More arithmetic cannot change the sufficiency decision.
Kartička 36
Otázka
How do you spot an out-of-scope answer?
Odpověď
It introduces a person, period, cause, or consequence the passage doesn't address. Being reasonable doesn't make it textually supported.
Kartička 37
Otázka
What is the percent-change formula?
Odpověď
For original > 0, percent change = (new − original) / original × 100%. Percent change from zero is undefined; negative baselines require context-specific interpretation.
Kartička 38
Otázka
What makes information sufficient for a yes-or-no question?
Odpověď
It forces the same yes-or-no answer in every valid case. The underlying value may still vary.
Kartička 39
Otázka
What preserves a ratio when its quantities are scaled?
Odpověď
Multiplying or dividing both terms by the same nonzero factor preserves the ratio.
Kartička 40
Otázka
How do you reject a main-idea answer with the wrong scope?
Odpověď
Compare it with the whole passage. A detail-only answer is too narrow; a claim extending beyond the passage is too broad.
Kartička 41
Otázka
Why should you track whether a variable is positive, negative, or zero?
Odpověď
Sign controls valid cases and operations. Squaring can hide sign, and division requires a nonzero denominator.
Kartička 42
Otázka
How do you simplify subtraction of a negative number?
Odpověď
Change it to addition: a − (−b) = a + b.
Kartička 43
Otázka
Whose purpose matters in a primary-purpose question?
Odpověď
The passage author's purpose. A theory or researcher may be described at length without representing what the author ultimately wants to do.
Kartička 44
Otázka
When is the on-screen calculator most useful?
Odpověď
For tedious arithmetic after the setup is clear. It does not replace choosing the right relationship or denominator.
Kartička 45
Otázka
In Data Sufficiency, what stem information applies when testing either statement?
Odpověď
Everything in the question stem. Stem facts remain active for each statement and for the combination.
Kartička 46
Otázka
What is the divisibility rule for 3?
Odpověď
The sum of the digits must be divisible by 3.
Kartička 47
Otázka
What does a transition paragraph often do?
Odpověď
It closes one line of thought and sets up the next. Its role depends on both sides, not only on its first sentence.
Kartička 48
Otázka
When is a proxy measure useful?
Odpověď
When evidence shows it reliably tracks the target for the intended decision. Correlation may support prediction, but it proves neither causation nor suitability on its own.
Kartička 49
Otázka
How do you find a greatest common factor from prime factorizations?
Odpověď
Take each shared prime to the smaller exponent.
Kartička 50
Otázka
What is the arithmetic mean?
Odpověď
The sum of the values divided by the number of values.
Kartička 51
Otázka
What units should a rate have?
Odpověď
One quantity per another, such as kilometers per hour. The denominator tells you what the rate is measured against.
Kartička 52
Otázka
How do you divide powers with the same nonzero base?
Odpověď
Subtract the exponents: aᵐ ÷ aⁿ = aᵐ⁻ⁿ.
Kartička 53
Otázka
What makes a paraphrase faithful to a passage detail?
Odpověď
It preserves the original meaning, scope, and certainty in different words. Shared keywords alone don't make it accurate.
Kartička 54
Otázka
How do you recover a total from an average?
Odpověď
Total = average × number of values.
Kartička 55
Otázka
How do you choose between two plausible reading inferences?
Odpověď
Choose the one with the tighter textual chain and fewer assumptions. Plausibility in the real world is secondary.
Kartička 56
Otázka
What quick check can catch a calculator-entry error?
Odpověď
Estimate the order of magnitude and direction first. An exact result far outside that range deserves another look.
Kartička 57
Otázka
How do you simplify a square root with a perfect-square factor?
Odpověď
Factor out the perfect square. For example, √72 = √(36 × 2) = 6√2.
Kartička 58
Otázka
What makes a new example parallel to one in the passage?
Odpověď
The same logical relationship. Match cause, contrast, exception, or function rather than shared subject matter.
Kartička 59
Otázka
When can work rates be added?
Odpověď
Add the stated constant rates when the workers operate simultaneously without interfering with one another. At 1/4 and 1/6 job per hour, together they complete 5/12 job per hour.
Kartička 60
Otázka
What is the denominator in a percent comparison?
Odpověď
The stated reference value. “A as a percent of B” means A divided by B, then multiplied by 100.
Kartička 61
Otázka
How do you translate “5 less than x”?
Odpověď
x − 5. The phrase “less than” reverses the spoken order.
Kartička 62
Otázka
In Data Sufficiency, what should you check before testing values?
Odpověď
The full domain. Honor stated restrictions and implicit ones such as positive lengths or nonzero divisors before judging sufficiency.
Kartička 63
Otázka
How do you add fractions with different denominators?
Odpověď
Rewrite them with a common denominator, then add the numerators. For example, 2/3 + 1/4 = 8/12 + 3/12 = 11/12.
Kartička 64
Otázka
How do you distinguish description from argument in a passage?
Odpověď
Description presents what happened or what a view says; argument gives reasons to accept, reject, or revise a claim.
Kartička 65
Otázka
How should you compare decimals with different lengths?
Odpověď
Append trailing zeros and compare place by place. For example, compare 0.47 with 0.4700, which are equal.
Kartička 66
Otázka
How should combined statements be evaluated?
Odpověď
Intersect their constraints with the stem. The combination is sufficient only if every remaining case gives one answer.
Kartička 67
Otázka
How do you find common ground between two viewpoints?
Odpověď
Look for the narrow claim both accept, even if they disagree about its cause, importance, or implications.
Kartička 68
Otázka
How do you solve a proportion such as a/b = c/d?
Odpověď
Cross-multiply to get ad = bc, provided b and d are nonzero.
Kartička 69
Otázka
How is average speed computed?
Odpověď
Total distance divided by total time. It is not usually the simple mean of the segment speeds.
Kartička 70
Otázka
What does |x| represent?
Odpověď
The nonnegative distance from x to 0 on the number line.
Kartička 71
Otázka
Why are strongly emotional tone descriptions often wrong?
Odpověď
They overstate measured academic prose. Match the answer's intensity to the author's actual language.
Kartička 72
Otázka
What is the divisibility rule for 4?
Odpověď
The number formed by the last two digits must be divisible by 4.
Kartička 73
Otázka
Can the ordinary percent-change formula be applied directly when the original value is zero or negative?
Odpověď
No. The ordinary GMAT rule assumes original > 0. Change from zero is undefined, and a negative baseline requires context-specific interpretation.
Kartička 74
Otázka
Why can a true statement still be a wrong answer?
Odpověď
It may not answer the question asked. Check the task—main idea, detail, inference, role, or purpose—before checking truth.
Kartička 75
Otázka
When must a weighted average lie between its component values?
Odpověď
When every weight is nonnegative and the total weight is positive. The average then lies between the smallest and largest component values.
Kartička 76
Otázka
How do you express an integer n divided by d with remainder r?
Odpověď
n = dq + r, where q is an integer and 0 ≤ r < d for positive d.
Kartička 77
Otázka
What does an inequality usually provide?
Odpověď
A range, not a unique value. It can still be sufficient if the question asks whether a threshold is crossed.
Kartička 78
Otázka
How should you handle an EXCEPT detail prompt?
Odpověď
Verify four statements against the passage and select the one that isn't supported. Keep the reversed task visible while checking each choice.
Kartička 79
Otázka
How should you set up a unit conversion?
Odpověď
Multiply by a conversion factor equal to 1, placing units so the unwanted unit cancels.
Kartička 80
Otázka
Can two individually insufficient statements remain insufficient together?
Odpověď
Yes. They may repeat the same limitation or still leave multiple valid answers.
Kartička 81
Otázka
For a positive base, how do you simplify a power raised to another power?
Odpověď
Multiply the exponents: (aᵐ)ⁿ = a^(mn).
Kartička 82
Otázka
When can you infer that an author accepts a claim?
Odpověď
When the author endorses it directly or relies on it without distancing language. Merely reporting another person's view isn't endorsement.
Kartička 83
Otázka
How should successive percentage changes be combined?
Odpověď
Multiply their factors. A 10% rise followed by a 10% fall gives 1.10 × 0.90 = 0.99, a 1% net fall.
Kartička 84
Otázka
What are compatible numbers in estimation?
Odpověď
Nearby numbers chosen to make mental arithmetic easy, such as 203 ÷ 9.9 ≈ 200 ÷ 10 = 20.
Kartička 85
Otázka
Which constraints are easy to overlook in a word problem?
Odpověď
Countability, positivity, distinctness, and capacity limits. Translate each noun and rule into a usable constraint.
Kartička 86
Otázka
How do you state the exact disagreement between two viewpoints?
Odpověď
Identify one claim that one side accepts and the other rejects. Don't substitute a topic that only one side discusses.
Kartička 87
Otázka
How do you represent three consecutive integers?
Odpověď
n, n + 1, and n + 2 for an integer n.
Kartička 88
Otázka
How do percentage points differ from percent change?
Odpověď
Percentage points are the direct difference between percentages. Moving from 20% to 25% is 5 points and a 25% relative increase.
Kartička 89
Otázka
What is a reversed-relationship trap?
Odpověď
It swaps cause and effect, support and conclusion, or the positions of two viewpoints while reusing familiar passage language.
Kartička 90
Otázka
How do you multiply two fractions?
Odpověď
Multiply numerator by numerator and denominator by denominator, canceling common factors when convenient.
Kartička 91
Otázka
How do direct and inverse proportion differ?
Odpověď
Direct:
y = kx; inverse:y = k/xforx ≠ 0.Kartička 92
Otázka
How do you recover an original value after a percentage increase?
Odpověď
Divide the new value by the growth factor. After a 20% increase, original = new ÷ 1.20.
Kartička 93
Otázka
When should absolute wording raise suspicion?
Odpověď
When the passage is qualified. Words such as always, never, entirely, and impossible require equally strong textual support.
Kartička 94
Otázka
What should you identify first in Data Sufficiency?
Odpověď
The exact target and answer type. Decide whether the stem asks for a value, a comparison, or a yes-or-no result.
Kartička 95
Otázka
What ending makes an integer divisible by 5 or by 10?
Odpověď
A last digit of 0 or 5 gives divisibility by 5; a last digit of 0 gives divisibility by 10.
Kartička 96
Otázka
How should a Data Sufficiency condition be handled?
Odpověď
Translate it into a precise constraint before testing sufficiency. Keep it separate from the conclusion you want.
Kartička 97
Otázka
How do you reject a half-right answer?
Odpověď
Test every part of it. One accurate clause can't rescue a second clause that distorts the passage or exceeds its scope.
Kartička 98
Otázka
When you convert a positive measurement to a smaller linear unit, what happens to its numerical value?
Odpověď
It increases. Multiply by the number of smaller units in one larger unit.
Kartička 99
Otázka
DS example: Is x > 5? Statement: x > 3. Is the statement sufficient?
Odpověď
No. Both x = 4 and x = 6 satisfy the statement, but they answer the stem differently.
Kartička 100
Otázka
What is a⁰ when a is nonzero?
Odpověď
- The nonzero-base condition matters because 0⁰ is not assigned this rule.
Kartička 101
Otázka
Which claim is the argument trying to establish?
Odpověď
The main conclusion. Find the claim supported by the other statements, then check that it answers the argument's central issue.
Kartička 102
Otázka
When should the two statements be combined?
Odpověď
When neither statement is sufficient alone. Use both constraints at once and test the remaining possibilities.
Kartička 103
Otázka
A positive number rounds to 8.2 to the nearest tenth. What interval contains it?
Odpověď
8.15 ≤ x < 8.25. The lower endpoint rounds up to 8.2; the upper endpoint rounds to 8.3.
Kartička 104
Otázka
What should you check when the conclusion changes populations?
Odpověď
Whether the evidence applies to the new population. Results from volunteers, specialists, or one age group may not transfer to everyone.
Kartička 105
Otázka
How should test values be chosen in Data Sufficiency?
Odpověď
Choose valid values that probe boundaries, signs, and distinct outcomes. Random easy values can miss the deciding case.
Kartička 106
Otázka
How do you translate “A is 30% more than B”?
Odpověď
A = 1.30B. The percentage is based on B.
Kartička 107
Otázka
When can one equation involving two variables be sufficient for a target?
Odpověď
When every valid solution gives the same target value, even if neither variable is unique. For example, x + y = 10 is sufficient to determine x + y.
Kartička 108
Otázka
What does a correlation establish by itself?
Odpověď
Only that two things vary together. It doesn't establish which one causes the other or whether a third factor causes both.
Kartička 109
Otázka
How do you divide by a nonzero fraction?
Odpověď
Multiply by its reciprocal. For example, 3/5 ÷ 2/7 = 3/5 × 7/2.
Kartička 110
Otázka
Why is a ratio often insufficient for an absolute value?
Odpověď
A ratio fixes relative size but usually leaves the scale free. Many proportional pairs can share the same ratio.
Kartička 111
Otázka
What is the divisibility rule for 9?
Odpověď
The sum of the digits must be divisible by 9.
Kartička 112
Otázka
What matters most when applying a sample result to a population?
Odpověď
Representativeness. The sample must resemble the target population on traits that could affect the result.
Kartička 113
Otázka
What should you check after solving a squared equation?
Odpověď
Check every allowed root. If positive and negative roots produce different target answers, the information is insufficient.
Kartička 114
Otázka
What does a negative exponent mean?
Odpověď
It takes the reciprocal: a⁻ⁿ = 1/aⁿ for nonzero a.
Kartička 115
Otázka
Which baseline makes a comparison informative?
Odpověď
The baseline relevant to the claim. Compare the outcome with what would otherwise have happened, not merely with an unrelated earlier figure.
Kartička 116
Otázka
What risk appears when an equation factors into multiple branches?
Odpověď
Each branch may create valid cases. Test all branches against the stem before deciding sufficiency.
Kartička 117
Otázka
How can you compare two positive fractions quickly?
Odpověď
Compare their cross-products. For a/b and c/d with positive denominators, compare ad with bc.
Kartička 118
Otázka
What may be assumed from a Data Sufficiency diagram?
Odpověď
Only marked or stated facts. Do not infer scale, equality, perpendicularity, or midpoint status from appearance.
Kartička 119
Otázka
What multiplier represents a p percent increase or decrease?
Odpověď
Use 1 + p/100 for an increase and 1 − p/100 for a decrease.
Kartička 120
Otázka
Which statements count as evidence?
Odpověď
The statements offered as reasons to accept another claim. Evidence may be factual or assumed for the argument, even if it isn't proven in real life.
Kartička 121
Otázka
Can a mean determine an individual observation?
Odpověď
Not by itself. A mean fixes the total, but different sets can have that total unless more constraints apply.
Kartička 122
Otázka
What weakens a move from past evidence to a present claim?
Odpověď
A relevant change over time. New technology, prices, rules, or behavior can make the earlier evidence a poor guide.
Kartička 123
Otázka
A value becomes 96 after a 20% increase. What was the original value?
Odpověď
- Divide the final value by the growth multiplier: 96 ÷ 1.2 = 80.
Kartička 124
Otázka
How do extreme valid cases help in Data Sufficiency?
Odpověď
They expose whether the target can change. Test the smallest, largest, or boundary cases allowed by the conditions.
Kartička 125
Otázka
How do you test for reverse causation?
Odpověď
Ask whether the alleged effect could instead cause the alleged cause. Productive teams may meet more because they are productive, not the reverse.
Kartička 126
Otázka
Must a sufficient statement make every variable unique?
Odpověď
No. It only needs to make the requested target unique, even if other variables remain undetermined.
Kartička 127
Otázka
A price rises 20% and then falls 20%. Does it return to its original value?
Odpověď
No. The multipliers give 1.20 × 0.80 = 0.96, so the final price is 4% below the original.
Kartička 128
Otázka
Why can a voluntary survey be biased?
Odpověď
People who choose to respond may differ from those who don't. Strong opinions or extra interest can distort the sample.
Kartička 129
Otázka
How do you expand a(b + c)?
Odpověď
ab + ac. The outside factor multiplies every term inside the parentheses.
Kartička 130
Otázka
What should the final Data Sufficiency decision describe?
Odpověď
Which information set guarantees an answer. It should not report the target’s numerical value.
Kartička 131
Otázka
What is the goal when solving a linear equation?
Odpověď
Isolate the variable by applying equivalent operations to both sides.
Kartička 132
Otázka
DS example: Is integer n even? Statement: n = 7. Is the statement sufficient?
Odpověď
Yes. It guarantees one answer—no. A statement can be sufficient even when that answer is negative.
Kartička 133
Otázka
When must an inequality sign reverse?
Odpověď
When both sides are multiplied or divided by a negative number.
Kartička 134
Otázka
What must be checked before comparing two groups?
Odpověď
Whether they differ in other relevant ways. Age, experience, starting level, or incentives may explain the outcome instead.
Kartička 135
Otázka
When is substitution preferable to elimination in a two-equation system?
Odpověď
Use substitution when one variable is already isolated or easy to isolate; use elimination when coefficients cancel easily.
Kartička 136
Otázka
What should you build before analyzing Multi-Source Reasoning material?
Odpověď
A quick source map. Note what each tab or document contains, who produced it, and the relevant date or scope.
Kartička 137
Otázka
How do you separate background from evidence?
Odpověď
Ask whether the statement supports a claim. Background sets context; evidence does logical work in moving the argument toward a conclusion.
Kartička 138
Otázka
Which algebraic terms can be combined?
Odpověď
Terms with the same variable part and exponents. For example, 3x² and −5x² combine, but 3x² and 3x do not.
Kartička 139
Otázka
When should you read the Multi-Source Reasoning question?
Odpověď
Before a deep read of every source. The question tells you which details deserve attention.
Kartička 140
Otázka
What is a reliable first step for an equation containing several fractions?
Odpověď
Multiply every term by the least common denominator, then solve the simpler equation.
Kartička 141
Otázka
Why does source provenance matter?
Odpověď
It defines what a claim can support. An internal forecast and an audited result do not carry the same evidentiary weight.
Kartička 142
Otázka
What should you test when evidence comes from a different setting?
Odpověď
Whether the settings differ in a way that affects the result. A finding from one market, school, or climate may not carry over unchanged.
Kartička 143
Otázka
What does an “and” compound inequality require?
Odpověď
The overlap of both solution sets. A value must satisfy both conditions.
Kartička 144
Otázka
What should you compare before combining claims from two sources?
Odpověď
Their population, period, units, and definitions. Matching labels can hide different scopes.
Kartička 145
Otázka
How can a third factor undermine a causal claim?
Odpověď
It may explain both events, so their correlation no longer establishes a direct causal link by itself. Hot weather can raise both cold-drink sales and pool attendance.
Kartička 146
Otázka
What do one, zero, or infinitely many solutions mean for two linear equations in two variables?
Odpověď
The lines intersect once, are parallel and distinct, or are the same line, respectively.
Kartička 147
Otázka
How should records from separate sources be linked?
Odpověď
Use a shared key with the same meaning in both sources, such as product code and month. Do not join on a vague label alone.
Kartička 148
Otázka
How do you factor 6x + 9?
Odpověď
3(2x + 3). Pull out the greatest common factor.
Kartička 149
Otázka
When does nonresponse threaten a survey result?
Odpověď
When nonrespondents may answer differently from respondents. A high response count doesn't fix a systematic missing group.
Kartička 150
Otázka
What is the first step when two sources seem inconsistent?
Odpověď
Compare definitions, dates, units, and aggregation levels. Many apparent conflicts come from mismatched frames.
300 kartiček
GMAT Flashcards: Quant, Verbal & Data Insights Decisions
Učit se tento balíček zdarmaOtevře se Nibomo, abyste se mohli začít učit.
Kartička 151
Otázka
When can you use the zero-product property?
Odpověď
After rewriting a product equal to zero. If (x − 2)(x + 5) = 0, then x = 2 or x = −5.
Kartička 152
Otázka
How does an inference differ from a stated fact?
Odpověď
A fact appears directly in a source; an inference must follow from the sources without an extra assumption.
Kartička 153
Otázka
Does a higher percentage by itself prove a higher count?
Odpověď
No. The underlying totals matter. Twenty percent of 1,000 is more than fifty percent of 100.
Kartička 154
Otázka
What does an “or” compound inequality require?
Odpověď
The union of the solution sets. A value may satisfy either condition or both.
Kartička 155
Otázka
What does a blank or omitted value establish?
Odpověď
Only that the value is not provided. It does not establish zero, no change, or failure.
Kartička 156
Otázka
How do you recognize an intermediate conclusion?
Odpověď
It is supported by one claim and supports another. It acts as both a conclusion and a premise in the same argument.
Kartička 157
Otázka
What should you do before writing equations for a two-quantity word problem?
Odpověď
Define each variable with its unit, then translate one independent relationship per equation.
Kartička 158
Otázka
Why should cross-source events be placed in time order?
Odpověď
Sequence separates prior conditions from later outcomes and prevents using future information as an earlier cause.
Kartička 159
Otázka
When should candidate solutions be checked in the original equation?
Odpověď
Always after a step that may introduce solutions, especially squaring both sides or clearing variable denominators.
Kartička 160
Otázka
How can switching from one measured outcome to another create a gap?
Odpověď
Evidence about one metric may not support a conclusion about another. More website visits, for example, don't by themselves mean more sales.
Kartička 161
Otázka
What makes a source relevant to a claim?
Odpověď
It supplies evidence for a required link in the claim. Related background alone is not enough.
Kartička 162
Otázka
How do you solve a factored polynomial inequality reliably?
Odpověď
Find the zeros, split the number line into intervals, and test each interval's sign. Include a zero only when equality is allowed.
Kartička 163
Otázka
Does happening first prove causation?
Odpověď
No. The timing may fit a causal story, but coincidence or another cause can still explain the later event.
Kartička 164
Otázka
How can you spot an unsupported cross-source conclusion?
Odpověď
Identify the bridge between evidence and conclusion. If the sources never establish that bridge, the conclusion needs an assumption.
Kartička 165
Otázka
What do 0 = 0 and 0 = 5 mean after simplifying an equation?
Odpověď
0 = 0 means every allowed value is a solution; 0 = 5 means there is no solution.
Kartička 166
Otázka
What should you verify before comparing figures from different sources?
Odpověď
Common units and denominators. Convert first, then compare the same quantity on the same basis.
Kartička 167
Otázka
How do you interpret |x − a| < r when r is positive?
Odpověď
x is within r units of a: a − r < x < a + r.
Kartička 168
Otázka
What can a larger sample improve?
Odpověď
Precision, if the sampling method is sound. A huge biased sample can still give a confidently wrong picture of the population.
Kartička 169
Otázka
How should a cross-source recommendation be evaluated?
Odpověď
Apply the stated decision rule to the combined evidence. Do not substitute a personal preference for the rule.
Kartička 170
Otázka
If a worker finishes one job in t hours, what is the worker's hourly rate?
Odpověď
1/t of the job per hour.
Kartička 171
Otázka
What can an average hide?
Odpověď
The distribution. Two groups can share an average while differing sharply in range, concentration, or the number of extreme values.
Kartička 172
Otázka
What should you confirm before submitting a Multi-Source Reasoning answer?
Odpověď
That every required part is supported by the correct source and scope. One unsupported component can invalidate the whole decision.
Kartička 173
Otázka
How do you find the amount of a pure component in a mixture?
Odpověď
Concentration × total mixture amount. A 30% solution with volume 20 contains 0.30 × 20 = 6 units of the component.
Kartička 174
Otázka
What role does a concession usually play?
Odpověď
It acknowledges a point that weighs against the conclusion, then answers that point or limits its relevance. Don't mistake the conceded claim for the argument's main conclusion.
Kartička 175
Otázka
When can an apparent cross-source discrepancy be resolved?
Odpověď
When a stated difference in scope or method explains both figures. If no bridge is given, keep the conflict open.
Kartička 176
Otázka
What is the two-set overlap formula?
Odpověď
In A or B = in A + in B − in both. Subtract the overlap because it was counted twice.
Kartička 177
Otázka
What should you identify first in Table Analysis?
Odpověď
The row unit, column definitions, and any notes. This establishes what one record and each value represent.
Kartička 178
Otázka
What is the fundamental counting principle?
Odpověď
Multiply the choices at successive stages when each stage has a fixed number of available choices.
Kartička 179
Otázka
Why distinguish relative change from absolute change?
Odpověď
Relative change is the percentage change; absolute change is the amount added or lost. A 50% rise from 2 adds 1, while a 10% rise from 1,000 adds 100.
Kartička 180
Otázka
How should a table filter be translated?
Odpověď
Turn it into an exact inclusion rule. Apply every condition before counting or comparing rows.
Kartička 181
Otázka
For equally likely outcomes, what is the basic probability formula?
Odpověď
Favorable outcomes divided by total possible outcomes.
Kartička 182
Otázka
What makes a proposed causal mechanism useful?
Odpověď
It explains how the cause could produce the effect. A plausible, evidence-backed mechanism strengthens the causal link.
Kartička 183
Otázka
How do you find the median?
Odpověď
Order the values and take the middle value; for an even count, average the two middle values.
Kartička 184
Otázka
How should numeric values be sorted?
Odpověď
By numerical value, not digit order. For example, 12 comes after 9 in ascending order.
Kartička 185
Otázka
What is missed when evidence includes only successful cases?
Odpověď
The failures. Studying only surviving firms can make a strategy look safer or more effective than it is.
Kartička 186
Otázka
Two machines have stated constant rates of 1/3 and 1/5 job per hour and operate simultaneously without interference. May their rates be added?
Odpověď
Yes. The stated rates are constant and the machines do not interfere, so their combined rate is 1/3 + 1/5 = 8/15 job per hour.
Kartička 187
Otázka
How should a table ratio be built when filters are involved?
Odpověď
Derive the numerator and denominator separately from the question, then apply each filter only where it is relevant. Do not automatically filter both quantities or default to all rows.
Kartička 188
Otázka
What quantity is conserved when two solutions are mixed without loss?
Odpověď
The amount of the pure component. Set the sum of the starting component amounts equal to the final component amount.
Kartička 189
Otázka
When may table rows be added directly?
Odpověď
Only when they are disjoint parts of the same measure and use compatible units. Overlapping groups would be double-counted.
Kartička 190
Otázka
What does n! mean for a positive integer n?
Odpověď
The product of the positive integers from 1 through n.
Kartička 191
Otázka
Where is the argument's logical gap?
Odpověď
Between the evidence and the conclusion. State what must connect them without merely repeating either side.
Kartička 192
Otázka
How do you find the number in neither of two sets?
Odpověď
Subtract the number in the union from the total population.
Kartička 193
Otázka
How should rates from table groups be combined?
Odpověď
Divide the total numerator by the total denominator. Weight a group rate by its group size only when that size is the rate's denominator.
Kartička 194
Otázka
What is wrong with moving from some cases to all cases?
Odpověď
The conclusion is broader than the evidence. Evidence that some members have a trait doesn't show that every member does.
Kartička 195
Otázka
When should you use a permutation?
Odpověď
When selecting and arranging items and order matters. The number of ordered selections of r from n distinct items is n!/(n − r)!.
Kartička 196
Otázka
Why does table granularity matter?
Odpověď
A row-level fact may disappear or change after aggregation. Match the claim to the table’s level of detail.
Kartička 197
Otázka
How do you find the probability that an event does not occur?
Odpověď
1 − P(event). This is often the quickest route for “at least one” questions.
Kartička 198
Otázka
Why does a comparable control group help test causation?
Odpověď
It shows what happened without the suspected cause. If the groups differ mainly in that factor, the result is harder to explain another way.
Kartička 199
Otázka
How should missing table entries be treated?
Odpověď
As unknown unless the notes define another meaning. Exclude or include them only as the question directs.
Kartička 200
Otázka
What is the mode of a data set?
Odpověď
A mode is any value with the greatest frequency. Under the no-mode convention, there is no mode only when at least two distinct values all have equal frequency.
Kartička 201
Otázka
What makes a table comparison valid?
Odpověď
The values must have compatible measures, units, periods, populations, and definitions. Normalize only validly convertible differences; reject differences in population, period, or definition that cannot be reconciled.
Kartička 202
Otázka
What should you check when a prediction extends a past pattern?
Odpověď
Whether the conditions behind the past pattern will continue. A trend alone doesn't show that its causes will remain in place.
Kartička 203
Otázka
How should a drain or other undoing process enter a work-rate equation?
Odpověď
As a negative rate. Add productive rates and subtract rates that reverse the work.
Kartička 204
Otázka
How can you avoid losing your place while scanning a table?
Odpověď
Evaluate one condition at a time and mark qualifying rows mentally or on the scratchpad. Count only after the final filter.
Kartička 205
Otázka
Can evidence that an outcome is possible show it is likely?
Odpověď
No. Possibility only shows that an outcome can occur; probability requires evidence about how likely it is.
Kartička 206
Otázka
What correction is needed when counting the union of three sets?
Odpověď
Add the three individual counts, subtract all three pairwise overlaps, then add the triple overlap back once.
Kartička 207
Otázka
When does a filtered table support a decision?
Odpověď
When the qualifying rows satisfy the stated rule. Keep filtering, calculation, and decision as separate steps.
Kartička 208
Otázka
When should you use a combination?
Odpověď
When selecting items and order does not matter. The number of selections of r from n distinct items is n!/[r!(n − r)!].
Kartička 209
Otázka
What must support a recommendation?
Odpověď
A link from the proposed action to the stated goal. The argument also needs the action to be feasible and free of costs that defeat the goal.
Kartička 210
Otázka
How do AND and OR change a table filter?
Odpověď
AND requires every condition; OR requires at least one. Parenthesize mixed rules before scanning rows.
Kartička 211
Otázka
How do you find the probability that independent events both occur?
Odpověď
Multiply their probabilities: P(A and B) = P(A) × P(B).
Kartička 212
Otázka
What can make an alphabetical sort misleading?
Odpověď
Labels may contain categories or embedded numbers. Confirm whether the column is text, numeric, or chronological.
Kartička 213
Otázka
What kind of fact most directly strengthens an argument?
Odpověď
A fact that supports the missing link between evidence and conclusion. Merely repeating a premise adds little.
Kartička 214
Otázka
What is the range of a data set?
Odpověď
Maximum value minus minimum value.
Kartička 215
Otázka
What should you check at a filter cutoff?
Odpověď
Whether the boundary is inclusive. “At least 40” includes 40; “more than 40” does not.
Kartička 216
Otázka
A train covers 150 miles in 3 hours at a constant rate. What is its rate?
Odpověď
50 miles per hour. Rearrange distance = rate × time to get rate = 150 ÷ 3.
Kartička 217
Otázka
What is the most direct way to weaken an argument?
Odpověď
Undermine a necessary assumption connecting the evidence to the conclusion. The premises can remain true while the conclusion loses support.
Kartička 218
Otázka
What does a tie in the sorted column imply?
Odpověď
The tied rows share rank on that measure. Their display order does not create a performance difference.
Kartička 219
Otázka
How do you identify a useful evaluation question?
Odpověď
Test whether opposite answers would push the argument in opposite directions. If both answers leave the conclusion unchanged, the question isn't useful.
Kartička 220
Otázka
What should you identify first in Graphics Interpretation?
Odpověď
The chart type and what each visual encoding represents. Bars, lines, areas, and points support different readings.
Kartička 221
Otázka
How do repeated identical items affect arrangement counts?
Odpověď
For n total items, divide n! by the factorial of each repeated count. Identical items do not create new arrangements when swapped.
Kartička 222
Otázka
What should you read before estimating a plotted value?
Odpověď
Both axis labels, units, and category order. Position has meaning only after the axes are understood.
Kartička 223
Otázka
How do you test whether a statement is a necessary assumption?
Odpověď
Negate it. If that negation seriously damages the argument, the original statement was necessary.
Kartička 224
Otázka
How do you find the probability that one of two mutually exclusive events occurs?
Odpověď
Add their probabilities: P(A or B) = P(A) + P(B). Their overlap is zero.
Kartička 225
Otázka
What should you verify in a chart legend?
Odpověď
Which color, shape, or line maps to each series. Similar styling can otherwise swap the groups in your interpretation.
Kartička 226
Otázka
What does standard deviation measure?
Odpověď
How spread out values are around the mean. Greater dispersion means a larger standard deviation.
Kartička 227
Otázka
What standard should an inference meet?
Odpověď
It must follow from the given statements, without extra assumptions. Choose the modest claim the evidence guarantees.
Kartička 228
Otázka
What does a segment’s share depend on?
Odpověď
The correct whole. A category’s share of one region may differ from its share of the full dataset.
Kartička 229
Otázka
For motion along the same line, when do you add or subtract two speeds to get relative speed?
Odpověď
Add the speeds for opposite directions; subtract the smaller speed from the larger for the same direction.
Kartička 230
Otázka
What must a paradox explanation accomplish?
Odpověď
Make both surprising facts plausible at the same time. Rejecting either stated fact doesn't resolve the tension.
Kartička 231
Otázka
How is a segment in a stacked bar measured?
Odpověď
Subtract its lower boundary from its upper boundary. The upper endpoint alone is cumulative, not the segment value.
Kartička 232
Otázka
Eight students average 70 and twelve students average 80. What is the combined mean?
Odpověď
- The group sizes are the weights: (8 × 70 + 12 × 80) ÷ 20 = 76.
Kartička 233
Otázka
What is the difference between a graph’s level and its rate of change?
Odpověď
Level is the plotted value; rate of change is the slope. A high line can still be falling.
Kartička 234
Otázka
How should you describe a statement's role in an argument?
Odpověď
Describe what it does, not just what it says. It may support the conclusion, present an objection, answer that objection, or illustrate a principle.
Kartička 235
Otázka
What is P(A given B)?
Odpověď
P(A and B) / P(B), provided P(B) > 0. Restrict the sample space to outcomes in B.
Kartička 236
Otázka
How should slope be compared across a graph?
Odpověď
Use change in vertical value divided by change in horizontal value. Visual steepness is reliable only on the same scales.
Kartička 237
Otázka
A driver covers equal distances at 30 mph and 60 mph. Is the average speed 45 mph?
Odpověď
No. Using 60 miles for each leg gives 120 miles in 3 hours, so the average speed is 40 mph.
Kartička 238
Otázka
What should you identify first when evaluating a plan?
Odpověď
The plan's exact goal and success measure. A proposal can produce benefits yet still fail its stated objective.
Kartička 239
Otázka
What does a trend in a scatterplot establish?
Odpověď
An association in the displayed data. It does not by itself establish causation or predict every individual point.
Kartička 240
Otázka
How can you strengthen a causal explanation?
Odpověď
Rule out a credible alternative cause, support the proposed mechanism, or show the effect changes when the proposed cause changes.
Kartička 241
Otázka
How can an outlier affect a graphical trend?
Odpověď
It can pull a summary line or average away from the main cluster. Check whether the claim concerns all points or the typical pattern.
Kartička 242
Otázka
Why do probabilities usually change when sampling without replacement?
Odpověď
The sample space changes after each draw. Update both the favorable count and the total before multiplying conditional probabilities.
Kartička 243
Otázka
One value in an n-value set increases by d. How does the mean change?
Odpověď
It increases by d/n because the total rises by d while the count stays fixed.
Kartička 244
Otázka
When does a counterexample weaken a claim?
Odpověď
When the claim requires the counterexample not to exist. One genuine exception can defeat an absolute claim, but may barely affect a modest one.
Kartička 245
Otázka
What is the parity of the sum of two odd integers?
Odpověď
Even. Each odd integer is one more than an even integer, so the two extra ones add to 2.
Kartička 246
Otázka
What can an aggregate graph hide?
Odpověď
Differences among subgroups or periods. A stable total can coexist with large offsetting changes inside it.
Kartička 247
Otázka
When is interpolation reasonable on a graph?
Odpověď
When the graph implies continuity between nearby points. Do not interpolate across separate categories.
Kartička 248
Otázka
What makes information relevant to evaluating an argument?
Odpověď
It bears on the uncertain link the conclusion depends on. Interesting facts about the topic may still be logically irrelevant.
Kartička 249
Otázka
How precise should a value read from a graph be?
Odpověď
Only as precise as the scale supports. Use a defensible interval when the mark falls between ticks.
Kartička 250
Otázka
Must a necessary assumption prove the conclusion?
Odpověď
No. It only has to be required for the argument to work; it need not be enough to establish the conclusion on its own.
Kartička 251
Otázka
How do you multiply positive numbers written in scientific notation?
Odpověď
Multiply the coefficients, add the powers of 10, then adjust the coefficient to be at least 1 and less than 10.
Kartička 252
Otázka
How should a graph-based decision be made?
Odpověď
Translate the visual into values or bounds, then apply the stated rule. Do not decide from appearance alone.
Kartička 253
Otázka
When is backsolving from answer choices especially useful?
Odpověď
When the choices are concrete values and direct algebra is slower than testing them in the original conditions.
Kartička 254
Otázka
How can axis scale distort a visual impression?
Odpověď
Unequal intervals or a truncated baseline can magnify or compress differences. Use tick values, not apparent distance alone.
Kartička 255
Otázka
When should you combine two statements for an inference?
Odpověď
When they share a term or relationship that creates a guaranteed consequence. Don't combine them through an unstated causal or statistical link.
Kartička 256
Otázka
When is a product of integers odd?
Odpověď
Only when every factor is odd. One even factor makes the entire product even.
Kartička 257
Otázka
What often resolves two apparently conflicting results?
Odpověď
A hidden difference in group, time, measurement, or conditions. The results may describe different slices of the situation.
Kartička 258
Otázka
How should equal distances on a logarithmic axis be interpreted?
Odpověď
As equal multiplicative changes, not equal absolute changes. Read the labeled values before comparing gaps.
Kartička 259
Otázka
Why start with a middle answer choice when backsolving ordered options?
Odpověď
Its result often eliminates half the choices at once when the relationship is monotonic.
Kartička 260
Otázka
What makes a Two-Part Analysis response complete?
Odpověď
Both selections must satisfy their own column prompts under the same stem. Treat the pair as one submitted response.
Kartička 261
Otázka
What is an analogy doing when it supports a claim?
Odpověď
It argues that because two cases share relevant features, a result or principle from one likely applies to the other.
Kartička 262
Otázka
How do you represent three consecutive odd integers?
Odpověď
n, n + 2, and n + 4, where n is an odd integer.
Kartička 263
Otázka
What should you identify before solving Two-Part Analysis?
Odpověď
The role of each column. One may ask for a condition while the other asks for a consequence or decision.
Kartička 264
Otázka
What values should you test first in a claim about an unspecified number?
Odpověď
Test allowed categories that may behave differently: positive, negative, zero, fractional, and boundary values.
Kartička 265
Otázka
How can an unchanged bottleneck defeat a plan?
Odpověď
Improving a nonlimiting step won't improve the final outcome if another constraint still controls it. Faster ordering doesn't help when production is already full.
Kartička 266
Otázka
How does the shared stem affect the two parts?
Odpověď
Its definitions and constraints apply to both. Keep them fixed while testing each column’s requirement.
Kartička 267
Otázka
How do you count the positive divisors of an integer greater than 1 from its prime factorization?
Odpověď
Add 1 to each prime exponent, then multiply those results.
Kartička 268
Otázka
In Two-Part Analysis, must the two selected entries be the same?
Odpověď
In the current format, the two selected entries may be the same or different. A linkage in the stem determines whether you must reason through them jointly, not whether their values match.
Kartička 269
Otázka
What makes evidence for a general claim strong?
Odpověď
It should be relevant and reliable and, if case-based, come from representative cases. More evidence isn't automatically better evidence.
Kartička 270
Otázka
How do you factor a difference of squares?
Odpověď
Use x² − y² = (x − y)(x + y).
Kartička 271
Otázka
When should the two Two-Part Analysis selections be solved together?
Odpověď
When one shared relationship constrains both. Test candidate pairs against that relationship instead of solving isolated fragments.
Kartička 272
Otázka
How can one counterexample evaluate a universal claim?
Odpověď
One valid counterexample disproves a claim that is supposed to hold for every allowed value.
Kartička 273
Otázka
How does an alternative explanation weaken a conclusion?
Odpověď
It shows that the evidence can be true without the proposed explanation being true. The alternative must account for the same result.
Kartička 274
Otázka
In Two-Part Analysis, how can one column help solve the other?
Odpověď
A valid selection can narrow the remaining candidates when the parts share a constraint. Recheck the final pair in both columns.
Kartička 275
Otázka
How do you test whether x² + bx + c factors into integer binomials?
Odpověď
Look for integers r and s with r + s = b and rs = c. If they exist, the factorization is (x + r)(x + s).
Kartička 276
Otázka
Which unknown should you evaluate first in a plan argument?
Odpověď
A condition that could make the plan achieve or miss its goal. Focus on feasibility, response, costs, and side effects tied to that goal.
Kartička 277
Otázka
How should a trade-off between two measures be evaluated?
Odpověď
Apply the stated priorities or limits. An option is better only relative to the rule, not because one measure is largest.
Kartička 278
Otázka
How can estimation screen answer choices before exact calculation?
Odpověď
Approximate the expression's magnitude, then eliminate choices that are far too large or too small.
Kartička 279
Otázka
In a constrained-decision Two-Part Analysis problem, what should you check before comparing candidates?
Odpověď
Check every hard constraint first. Discard any option that breaks a required limit, then compare only the feasible candidates.
Kartička 280
Otázka
What does a defensive assumption do?
Odpověď
It rules out a threat that would break the argument. For example, a revenue plan may assume that its added costs won't exceed the new revenue.
Kartička 281
Otázka
What restriction applies when a variable appears in a denominator?
Odpověď
Exclude every value that makes the denominator zero.
Kartička 282
Otázka
How does an objective differ from a constraint?
Odpověď
A constraint determines what is allowed; an objective ranks the allowed options. Apply them in that order.
Kartička 283
Otázka
Which quick checks catch many Quant answer errors?
Odpověď
Check the sign, units, allowed range, and rough size against the question's conditions.
Kartička 284
Otázka
What inference is safe from a statement about most members?
Odpověď
More than half have the stated trait. You can't infer that all do, that any particular member does, or that most have another trait.
Kartička 285
Otázka
How should a two-part threshold rule be handled?
Odpověď
Translate each threshold with the correct inequality, including its boundary. Then test both selected values against it.
Kartička 286
Otázka
Where can one negative sign appear in a fraction without changing its value?
Odpověď
Before the fraction, in the numerator, or in the denominator: −(a/b) = (−a)/b = a/(−b), provided b ≠ 0.
Kartička 287
Otázka
How does an argument choose between competing explanations?
Odpověď
It presents evidence that one explanation handles better than the others, often by ruling out a rival prediction.
Kartička 288
Otázka
What is an efficient way to handle two linked algebraic targets?
Odpověď
Express both in terms of one variable or invariant. Evaluate candidate values only after the relationship is clear.
Kartička 289
Otázka
How do you solve x² = c over the real numbers?
Odpověď
If c > 0, x = ±√c; if c = 0, x = 0; if c < 0, there is no real solution.
Kartička 290
Otázka
What should you check when two selected quantities form a ratio?
Odpověď
Order and scale. The ratio A:B is not interchangeable with B:A, and proportional pairs may all fit.
Kartička 291
Otázka
How does a positive proper fraction compare with 1?
Odpověď
It is less than 1 because its numerator is smaller than its denominator.
Kartička 292
Otázka
Which side effects matter when evaluating a plan?
Odpověď
Effects that change the plan's net result or work against its goal. A small unrelated inconvenience usually doesn't matter.
Kartička 293
Otázka
How should a two-part logical claim be tested?
Odpověď
Separate the condition from the conclusion, then test whether each selected statement performs the requested role.
Kartička 294
Otázka
What is the solution pattern for |x| = a over the real numbers?
Odpověď
If a > 0, x = ±a; if a = 0, x = 0; if a < 0, there is no real solution.
Kartička 295
Otázka
What unit check belongs in a two-part quantitative answer?
Odpověď
Confirm that each selection has the unit requested by its column. Linked values may require different conversions.
Kartička 296
Otázka
Why does user response matter to a plan?
Odpověď
The plan may depend on people adopting, following, or not avoiding it. Availability alone doesn't guarantee the needed behavior.
Kartička 297
Otázka
A response rate rises from 40% to 50%. What are the percentage-point change and the relative percent increase?
Odpověď
The increase is 10 percentage points and 25% relative to the original rate: (50 − 40) ÷ 40 = 0.25.
Kartička 298
Otázka
What is the final check for Two-Part Analysis?
Odpověď
Read each column prompt with its chosen entry, then verify that the pair is jointly consistent with the stem.
Kartička 299
Otázka
For real x and y, what two linear cases are equivalent to x² = y²?
Odpověď
x = y or x = −y.
Kartička 300
Otázka
How should benefits and costs be compared in a plan argument?
Odpověď
By their net effect on the stated goal. A plan can create the intended benefit but still fail if its relevant costs are larger.
300 kartiček
GMAT Flashcards: Quant, Verbal & Data Insights Decisions
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