GMAT Focus Edition
GMAT Practice Questions by Topic
Percents
A price rises 20% and then falls 20%. What is the net change?
- 0%
- 4% decrease
- 4% increase
- 2% decrease
- 20% decrease
Answer: B. 1.2 × 0.8 = 0.96, a 4% decrease.
40 is 25% of what number?
- 10
- 100
- 120
- 160
- 200
Answer: D. 40 ÷ 0.25 = 160.
Rates and work
Pipe A fills a tank in 3 hours and pipe B in 6 hours. Together, how long do they take?
- 1.5 h
- 2 h
- 2.5 h
- 4.5 h
- 9 h
Answer: B. 1/3 + 1/6 = 1/2 tank per hour, so 2 hours.
A car drives 60 miles at 30 mph and returns at 60 mph. What is its average speed?
- 40 mph
- 42 mph
- 45 mph
- 48 mph
- 50 mph
Answer: A. Total 120 miles over 2 + 1 = 3 hours: 40 mph.
Algebra
If x² − 9 = 0 and x < 0, what is x?
- −9
- −3
- 0
- 3
- 9
Answer: B. x² = 9 gives x = ±3; x < 0, so x = −3.
If 3x + 2y = 12 and x − y = −1, what is x?
- 1
- 2
- 3
- 4
- 5
Answer: B. y = x + 1, so 3x + 2x + 2 = 12, x = 2.
Number properties
How many positive factors does 72 have?
- 6
- 8
- 10
- 12
- 14
Answer: D. 72 = 2³ × 3², so (3 + 1)(2 + 1) = 12.
What is the remainder when 2^10 is divided by 7?
- 1
- 2
- 3
- 4
- 6
Answer: B. Powers of 2 mod 7 cycle 2, 4, 1. 10 = 3 × 3 + 1, so remainder 2.
Statistics and probability
The mean of 5 numbers is 12. Four of them sum to 44. What is the fifth?
- 12
- 14
- 16
- 18
- 20
Answer: C. Total is 60; 60 − 44 = 16.
A fair coin is flipped 3 times. What is the probability of at least one head?
- 1/8
- 3/8
- 1/2
- 3/4
- 7/8
Answer: E. 1 − P(no heads) = 1 − 1/8 = 7/8.
Counting
How many ways can a committee of 3 be chosen from 6 people?
- 18
- 20
- 36
- 120
- 216
Answer: B. 6C3 = 6! ÷ (3! × 3!) = 20.
Data Sufficiency
What is the value of x? (1) x² = 9. (2) x > 0.
- Statement (1) alone is sufficient, but (2) alone is not.
- Statement (2) alone is sufficient, but (1) alone is not.
- Both together are sufficient, but neither alone is.
- Each statement alone is sufficient.
- The statements together are not sufficient.
Answer: C. (1) gives x = 3 or −3, not enough. (2) only says x is positive, not enough. Together, x = 3, so both are needed.
Is the integer n even? (1) n + 1 is odd. (2) n is divisible by 3.
- Statement (1) alone is sufficient, but (2) alone is not.
- Statement (2) alone is sufficient, but (1) alone is not.
- Both together are sufficient, but neither alone is.
- Each statement alone is sufficient.
- The statements together are not sufficient.
Answer: A. (1) If n + 1 is odd, n must be even: sufficient. (2) 3 is odd and 6 is even, so it does not decide the question.
Questions
Where can I find free GMAT sample questions?
This page has free sample questions in the GMAT Focus style, each with a worked answer. They cover percents, rates, algebra, number properties, statistics, counting and Data Sufficiency. For more, use GMAT Buddy adaptive practice or take the free diagnostic.
Is there a free GMAT practice test?
The free diagnostic gives you a quick read on your level across Quant, Verbal and Data Insights. When you are ready for full timed sections, GMAT Buddy also has full-length mock exams.
Are these official GMAT questions?
No. They are original questions written in the GMAT Focus style. For official material, see mba.com.
How many practice questions should I do?
Quality beats volume. Most people do 1,000 to 1,500 questions over their prep, reviewing every miss.
Where can I practice more?
GMAT Buddy offers adaptive practice that picks questions at your level, plus full mock exams.
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