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