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