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80 multiple-choice questions and 125 flashcards, written to the GMAC GMAT Focus Edition blueprint. Every question carries a full rationale.
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GMAC GMAT Focus Edition (current 2024+) — 2h 15m exam, three scored sections: 1) Quantitative Reasoning (arithmetic, algebra, problem-solving only — no geometry), 2) Verbal Reasoning (Reading Comprehension + Critical Reasoning only — Sentence Correction removed), 3) Data Insights (data sufficiency + integrated/graphical reasoning). MCQs are original items written from public GMAC content descriptions. No actual GMAT items reproduced or paraphrased.
CoStudy's GMAT Focus Edition bank holds 205 items. Every multiple-choice question carries a written rationale explaining why the correct answer is correct and why each distractor is tempting but wrong.
A sample of 7 multiple-choice questions from the bank, with the full rationale shown.
The GMAT Focus Edition score is reported on:
Answer: C — A total score on a 205–805 scale, with section scores from 60–90 — used by business schools as part of admissions decisions
C) Current scoring. A/B/D) Each is incorrect.
If 3x + 7 = 22, what is the value of x²?
Answer: C — 25
3x + 7 = 22 → 3x = 15 → x = 5. Then x² = 25. Answer C. GMAT often inserts a second step to discourage stopping at the linear solution.
GMAT Quant: A is 20% more than B. If B = 50, A =
Answer: A — 60 (1.20 × 50)
20% more than B = 1.20 × B = 1.20 × 50 = 60. Common trap: confusing 'A is 20% more than B' (A = 1.2B) with 'A is 20% of B' (A = 0.2B). Always identify base.
A two-axis chart shows monthly revenue vs. month for two product lines. Product A trended upward; Product B was flat. The TOTAL revenue trend is most likely:
Answer: B — Increasing
If one line increases and the other is flat, the sum is increasing. B is correct. D would apply if both lines moved oppositely or magnitudes were unspecified, but here one is monotone-up and other is flat — sum is monotone-up.
GMAT Verbal: an idiom is BEST defined as:
Answer: E — A grammatical construction with a CONVENTIONAL form that may not follow strict grammatical rules ('different FROM' not 'different than'; 'consider X to be Y' or just 'consider X Y'); idioms tested in Sentence Correction
GMAT idioms: 'between X and Y' (not 'between X to Y'), 'such as' (not 'like' for examples), 'compare X to Y' (similarities) vs 'compare X with Y' (analysis), 'either...or,' 'neither...nor,' 'not only...but also.' Memorize 50-100 idioms.
The GMAT differs from the GRE in that the GMAT is:
Answer: C — Designed specifically for business-school admissions, with Data Insights replacing GRE-like Quant — though many MBA programs now accept GRE scores as an alternative
C) Standard comparison. A/B/D) Each is incorrect.
GMAT scores are reported in:
Answer: D — A unified scale with section scores and a total — used by business schools as one factor in admission, with school-specific median/average GMAT scores publicly reported
D) Defining usage. A/B/C) Each is incomplete.
6 sample cards from the 125 in the bank.
Number line trap: 'integer x'. Could x be negative? Zero?
Yes! Always consider all valid integers (positive, negative, zero) unless restricted.
Pythagorean theorem?
a² + b² = c² for right triangle (c is hypotenuse).
Permutation formula P(n,k)?
n! / (n-k)!. Order matters.
Multiplying by 11 (2-digit)?
Add the two digits, place between them. 36 × 11 = 3_(3+6)_6 = 396.
Graphics Interpretation format?
Chart/graph + 2 fill-in-blank statements with dropdown answer choices.
Median of {2, 5, 7, 10}?
6 (average of middle two: (5+7)/2).
These samples are a small slice. The full bank runs flashcards, multiple choice and timed mock exams with per-chapter progress tracking, on the web and in the iOS app.
The GMAT Focus Edition bank holds 205 items: 80 multiple-choice questions, 125 flashcards. 13 of them are on this page to read free, with no signup.
Yes. Every multiple-choice item carries a written rationale that states the controlling principle behind the correct answer and then addresses each wrong option in turn — why it tempts and precisely where it fails. Knowing why the plausible answer was wrong is worth more than knowing which letter was right.
GMAC GMAT Focus Edition (current 2024+) — 2h 15m exam, three scored sections: 1) Quantitative Reasoning (arithmetic, algebra, problem-solving only — no geometry), 2) Verbal Reasoning (Reading Comprehension + Critical Reasoning only — Sentence Correction removed), 3) Data Insights (data sufficiency + integrated/graphical reasoning). MCQs are original items written from public GMAC content descriptions. No actual GMAT items reproduced or paraphrased.
The samples on this page are free to read in full, rationales included, with no account. The complete 205-item bank, the timed mock exams and per-chapter progress tracking are part of CoStudy on the web and in the iOS app.
Last reviewed 2026-08-22. Banks are written against the certifying body's published exam outline and re-checked when that outline changes — exams get renumbered, retired and reweighted, and a bank written to a superseded outline teaches the wrong proportions. Figures that are re-indexed annually are deliberately not asserted as rules; the questions test the governing principle instead.