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