GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

179

15

80,066

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

858

24

189,065

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,806

by: bb

29 Aug 2025, 13:27

ER

If ab > 0, does (a - 2)(b - 2) = 4 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

WoundedTiger

15 Aug 2013, 02:22

11

6

5,022

by: bumpbot

25 Feb 2025, 14:01

ER

If x and y are nonzero integers, is x^y < y^x ?

605-655 (Medium) | Algebra +2 tags

605-655 (Medium) | Algebra, Exponents, Inequalities hide tags

Bunuel

27 Oct 2005, 16:28

231

11

34,407

by: bumpbot

25 Feb 2025, 13:36

ER

If x < y, is x^2 < y^2 ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

24 Feb 2014, 01:59

34

6

9,596

by: bumpbot

25 Feb 2025, 11:54

ER

David has 3 credit cards: a Passport card, an EverywhereCard and an

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

29 Feb 2024, 02:30

2

1,882

by: luigilosito

25 Feb 2025, 10:01

ER

If m, n are positive integers, what is the value of mn?

605-655 (Medium) | Multiples and Factors

605-655 (Medium) | Multiples and Factors hide tags

Bunuel

23 Sep 2023, 08:15

4

2

1,553

by: Mahi2804

25 Feb 2025, 09:57

ER

Is k the square of an integer?

555-605 (Medium) | Algebra, Number Properties

555-605 (Medium) | Algebra, Number Properties hide tags

jsphcal

05 Sep 2017, 01:08

63

8

13,145

by: bumpbot

25 Feb 2025, 09:44

ER

Out of the total boys and girls in a class, 45% are boys and 25% are

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

amanvermagmat

11 May 2018, 11:27

15

4

3,122

by: bumpbot

25 Feb 2025, 07:19

What is the GCD of a and b?

705-805 (Hard) | Multiples and Factors

705-805 (Hard) | Multiples and Factors hide tags

PrepTap

25 Feb 2025, 07:15

15

5

4,133

by: bumpbot

25 Feb 2025, 07:03

ER

What is the value of t?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

1, 2

Bunuel

16 Jun 2016, 03:26

33

20

25,965

by: bumpbot

25 Feb 2025, 03:56

ER

At a particular university with 200 students 30% receive only loans

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

25 Feb 2025, 01:30

2

1

621

by: ManifestDreamMBA

25 Feb 2025, 01:49

ER

If a and b are positive integers, how many digits does a*b have?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

07 Mar 2023, 01:35

4

2

1,827

by: Julioo

24 Feb 2025, 13:12

ER

A drawer contains 36 socks, and 2 socks are selected at

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

Economist

25 Oct 2009, 05:13

71

11

20,006

by: bumpbot

24 Feb 2025, 10:30

ER

At a particular university with 150 students 70% receive loans and 40%

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

24 Feb 2025, 01:30

7

3

738

by: NextstopISB

24 Feb 2025, 08:55

ER

If all of the 100 students that attended the fair rode the Ferris

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

24 Feb 2025, 01:30

7

3

1,034

by: NextstopISB

24 Feb 2025, 08:54

ER

If a^{2/3} - b^{2/3} = 12, then \sqrt[3]{a} + \sqrt[3]{b} = ?

805+ (Hard) | Algebra, Roots

805+ (Hard) | Algebra, Roots hide tags

Bunuel

06 Nov 2014, 09:02

45

9

11,486

by: bumpbot

24 Feb 2025, 07:45

ER

Is the product of a certain pair of integers even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

holdem

12 May 2014, 12:54

60

8

30,250

by: Bunuel

24 Feb 2025, 06:42

ER

If p and q are integers, Is pq > 0?

655-705 (Hard) | Algebra, Exponents

655-705 (Hard) | Algebra, Exponents hide tags

kiran120680

01 May 2019, 09:09

25

8

6,279

by: saynchalk

23 Feb 2025, 11:31

ER

Assume that all positive integers are colored either red or blue. If a

655-705 (Hard) | Algebra +2 tags

655-705 (Hard) | Algebra, Arithmetic, Inequalities hide tags

BillyZ

22 Feb 2017, 22:58

60

4

7,172

by: bumpbot

23 Feb 2025, 04:59

ER

If the average (arithmetic mean) of four different positive integers

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

Bunuel

06 Oct 2021, 01:30

6

4

6,326

by: bumpbot

23 Feb 2025, 04:57

Kim sold five shirts in a day in her shop. What was the profit percent

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

amanvermagmat

05 Jun 2018, 11:26

4

3

3,021

by: bumpbot

23 Feb 2025, 04:50

ER

Both a, b, and c are 3-digits integers, where a=b+c. Is the

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

LM

26 Jan 2012, 06:34

45

8

14,513

by: bumpbot

23 Feb 2025, 04:25

ER

In a rectangular coordinate system, are the points (x, y) and (w, z)

705-805 (Hard) | Absolute Values, Geometry

705-805 (Hard) | Absolute Values, Geometry hide tags

Bunuel

21 Jun 2021, 01:30

14

5

2,774

by: bumpbot

23 Feb 2025, 03:05

ER

Is w an integer?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

19 May 2016, 03:30

23

8

13,528

by: bumpbot

22 Feb 2025, 22:43

ER

In the correctly-worked multiplication problem above, each

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

WoundedTiger

02 Aug 2014, 22:42

124

7

20,723

by: bumpbot

22 Feb 2025, 19:37

ER

If n ≠ k, k ≠ 0, n ≠ -2, and n and k are integers, is 1/(n−k)>0?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

25 Apr 2016, 04:02

10

4

5,523

by: bumpbot

22 Feb 2025, 12:52

ER

What is the selling price of the mixture if the ratio of the two qual

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

21 Jul 2021, 05:30

2

2,218

by: bumpbot

22 Feb 2025, 09:45

ER

Three completely unmarked containers are used for measuring water. Wat

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

03 Nov 2014, 09:04

41

8

12,485

by: Fungano

22 Feb 2025, 09:31

ER

b, c, d, e, f and g are different positive integers. When b is divided

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

BrentGMATPrepNow

17 Sep 2019, 06:36

91

15

9,394

by: bumpbot

22 Feb 2025, 04:56

ER

What is the value of x/2 ? (1) x is 1/5 less than 9/10 (2) x is

Sub 505 (Easy) | Arithmetic

Sub 505 (Easy) | Arithmetic hide tags

Bunuel

23 Sep 2022, 01:30

2

3,375

by: bumpbot

22 Feb 2025, 03:36

ER

If c is a positive integer less than 10 and n = 9446 + c, then what is

555-605 (Medium) | Multiples and Factors

555-605 (Medium) | Multiples and Factors hide tags

Bunuel

16 Jul 2015, 01:18

8

9

5,596

by: bumpbot

22 Feb 2025, 03:21

ER

If x is an integer, does x have a factor n such that 1 < n < x?

555-605 (Medium) | Multiples and Factors, Number Properties

555-605 (Medium) | Multiples and Factors, Number Properties hide tags

zisis

08 Sep 2010, 11:52

291

14

29,181

by: Bunuel

21 Feb 2025, 10:40

ER

If University of Virginia's total expenditure for books, periodicals

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

21 Feb 2025, 01:30

4

2

522

by: Gmat750aspirant

21 Feb 2025, 09:36

ER

Paula and Sandy were among those people who sold T-shirts to raise

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

21 Feb 2025, 01:30

9

2

753

by: Gmat750aspirant

21 Feb 2025, 09:35

ER

Yesterday, Nan parked her car at a certain parking garage

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

ywilfred

28 Aug 2004, 09:15

49

10

18,639

by: bumpbot

21 Feb 2025, 00:48

ER

In the morning, John drove to his mother's house in the

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

22 Mar 2013, 13:18

27

7

14,235

by: bumpbot

20 Feb 2025, 15:18

ER

If z is x percent of y, then what is the square root of z ?

555-605 (Medium) | Percent and Interest Problems

555-605 (Medium) | Percent and Interest Problems hide tags

Bunuel

30 May 2023, 01:30

3

2

1,429

by: bumpbot

20 Feb 2025, 13:27

ER

What is the average (arithmetic mean) of a, b, c and d?

555-605 (Medium) | Statistics and Sets Problems

555-605 (Medium) | Statistics and Sets Problems hide tags

Bunuel

08 Apr 2022, 01:30

4

3

6,888

by: bumpbot

20 Feb 2025, 12:33

ER

The average (arithmetic mean) of 5 distinct, single digit integers is

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

qweert

24 Jul 2017, 06:30

144

12

34,814

by: bumpbot

20 Feb 2025, 09:16

ER

A rectangle is plotted on the standard coordinate plane

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

1, 2

guygmat

19 Jun 2011, 23:18

77

21

20,663

by: bumpbot

20 Feb 2025, 09:09

ER

A man goes from home to office at an average speed of a km/hr. and on

805+ (Hard) | Distance and Speed Problems

805+ (Hard) | Distance and Speed Problems hide tags

GMATinsight

11 Jun 2020, 21:07

10

7

3,191

by: bumpbot

20 Feb 2025, 07:51

ER

How long did it take Jason to drive nonstop at a constant speed from

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

20 Feb 2025, 01:30

4

656

by: AVMachine

20 Feb 2025, 06:48

ER

Two cars, A and B, each traveled a distance of 600 miles.

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

20 Feb 2025, 01:30

2

3

681

by: Gmat750aspirant

20 Feb 2025, 04:54

ER

In a sports event, a total of 50 students participated from either

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Bunuel

08 Feb 2024, 14:17

13

8

4,078

by: bumpbot

19 Feb 2025, 22:45

ER

If a and b are positive integers, is a^4-b^4 divisible by 4?

705-805 (Hard) | Multiples and Factors, Number Properties

705-805 (Hard) | Multiples and Factors, Number Properties hide tags

BillyZ

23 Mar 2017, 00:23

85

17

12,190

by: anirchat

19 Feb 2025, 11:49

ER

990 people went to the GMAT exam, how many boys didn't pass the test?

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

19 Feb 2025, 01:30

2

3

824

by: NextstopISB

19 Feb 2025, 09:29

ER

Jamal can drive from his home to his mother's house by one of two

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

19 Feb 2025, 01:30

2

3

740

by: NextstopISB

19 Feb 2025, 09:28

ER

If n is an integer between 100 and 900, what is the tens dig

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

amyjohn

10 Nov 2013, 23:00

71

11

16,986

by: bumpbot

19 Feb 2025, 08:11

ER

If x is an integer greater than zero but less than integer n, is x is

705-805 (Hard) | Multiples and Factors, Number Properties

705-805 (Hard) | Multiples and Factors, Number Properties hide tags

Bunuel

29 Apr 2019, 06:18

10

5,905

by: bumpbot

19 Feb 2025, 08:09

ER

If m, n, and p as positive integers, is the expression m^2 + n^3 + p^5

705-805 (Hard) | Multiples and Factors

705-805 (Hard) | Multiples and Factors hide tags

Bunuel

29 Dec 2023, 02:30

6

2

1,570

by: bumpbot

19 Feb 2025, 08:07

ER

While driving on the expressway, did Robin ever exceed the 55-miles-pe

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

GMATD11

21 Feb 2011, 06:56

58

5

15,702

by: bumpbot

19 Feb 2025, 05:30