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

176

15

78,693

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,507

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

487,916

by: bb

29 Aug 2025, 13:27

ER

If t and x are integers, what is the value of x?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

surupab

18 Apr 2017, 07:32

306

17

54,701

by: bumpbot

07 Nov 2024, 11:12

ER

Positive integers A, B, C are such that C is a multiple of B & B is a

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

surendrasaini1

28 Sep 2018, 10:07

2

2,172

by: GMATWhizTeam

22 Mar 2020, 09:48

ER

If x is negative, is x < –3 ? (1) x^2 > 9 (2) x^3 < –9

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

surendar26

02 Jul 2021, 02:15

461

13

67,932

by: bumpbot

07 Aug 2025, 08:07

ER

Does the prime number p divide n!?

805+ (Hard) | Multiples and Factors, Number Properties

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

surendar26

20 Dec 2010, 10:10

24

11

6,608

by: bumpbot

15 May 2025, 00:04

ER

Is x + y > 0 ? (1) x^2 - y^2 > 1 (2) x/y + 1 > 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

surendar26

26 Dec 2010, 08:31

28

8

7,915

by: bumpbot

03 Mar 2025, 08:33

ER

A number B is formed by reversing the two digit number A. Wh

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

surendar26

20 Dec 2010, 10:08

17

5

7,804

by: bumpbot

18 Sep 2022, 19:53

ER

If a and b are distinct non zero numbers, is x+y an even

705-805 (Hard) | Exponents, Number Properties

705-805 (Hard) | Exponents, Number Properties hide tags

surendar26

27 Nov 2017, 18:30

33

9

7,734

by: Basshead

29 Oct 2020, 02:39

ER

Is xy < 5 ? (1) x is prime and y is the reciprocal of a

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

surendar26

08 Dec 2010, 04:20

2

3,950

by: bumpbot

22 Aug 2017, 03:43

ER

If 8^0.5y 3^0.75x = 12^n then what is the value of x?? 1) n

Poor Quality

Poor Quality hide tags

surendar26

20 Dec 2010, 10:14

25

8

8,000

by: brs1cob

27 Sep 2015, 08:52

ER

Lines k and l intersect in the coordinate plane at point (3,

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

1, 2

supri1234

09 Jul 2013, 15:49

128

20

17,511

by: bumpbot

23 May 2025, 23:03

ER

If x is a positive integer, is x a prime integer?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

suprememodelrus

25 Jan 2013, 03:43

101

11

19,204

by: siddhantvarma

08 Jun 2025, 11:19

ER

All the terms in Set S are integers. Five terms in S are eve

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

superpus07

15 Jan 2013, 17:29

30

14

8,784

by: BinodBhai

31 Aug 2025, 07:10

ER

Eight consecutive integers are selected from the integers 1

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

superpus07

06 Nov 2012, 19:05

43

9

9,591

by: anairamitch1804

01 Mar 2017, 22:39

ER

If x and y are integer, is y < 0?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Supermaverick

06 Jul 2017, 11:30

1

2

1,935

by: bumpbot

11 May 2024, 14:37

ER

The positive integers l, m, and n are such that l is divisible by m

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

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

Supermaverick

28 Jun 2017, 10:12

2

2,206

by: bumpbot

17 Nov 2023, 17:09

ER

Is x > y? (1) x^2 > y^2 (2) |x| > |y|

505-555 (Easy) | Absolute Values, Inequalities

505-555 (Easy) | Absolute Values, Inequalities hide tags

Supermaverick

14 Jul 2017, 14:48

3

5

2,870

by: bumpbot

09 Apr 2023, 16:44

ER

In a certain business, production index p is directly proportional to

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

1, 2

Superhuman

01 Jul 2017, 10:41

567

23

72,027

by: shwetakoshija

26 Mar 2026, 04:48

ER

If the number of members in the club C is 100, what is the value of x?

655-705 (Hard) | Statistics and Sets Problems

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

sunny91

11 Nov 2017, 05:31

6

4

3,168

by: bumpbot

04 Aug 2022, 17:41

ER

What fraction of this year's graduating students at a certain college

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

sunland

17 Jun 2019, 05:54

204

19

38,368

by: totaltestprepNick

03 Mar 2026, 13:17

ER

Committee X and Committee Y , which have no common members

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

sunland

16 Mar 2012, 01:00

92

14

24,545

by: bumpbot

26 Aug 2025, 20:02

ER

If a pencil is selected at random from a desk drawer, what

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

sunita123

14 Jul 2014, 14:23

26

11

11,670

by: bumpbot

13 Apr 2026, 11:32

ER

If a certain company purchased computers at $2000 each and printers $

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

sunita123

06 Sep 2015, 04:28

23

10

12,270

by: bumpbot

06 Dec 2025, 18:43

ER

Is x + y > 0 ? (1) x - y > 0 (2) x^2 - y^2 > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

sunita123

14 Oct 2023, 00:44

34

10

14,571

by: sujoykrdatta

14 Apr 2025, 09:25

ER

If m and n are positive integers is m/n an integer?

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

sunita123

13 Dec 2014, 13:55

8

5

11,840

by: bumpbot

16 May 2023, 13:57

ER

Ellen can purchase a certain computer at a local store at th

655-705 (Hard) | Percent and Interest Problems, Word Problems

655-705 (Hard) | Percent and Interest Problems, Word Problems hide tags

SUNGMAT710

18 Jan 2015, 03:05

149

19

31,995

by: bumpbot

25 Jun 2025, 09:05

ER

Are the two nonzero integers x and y on opposite sides of 0 on the num

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

SUNGMAT710

24 Aug 2013, 23:36

3

7

9,264

by: bumpbot

27 Jan 2023, 03:44

ER

What is the difference between the standard deviation of two five memb

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

sunaimshadmani

08 Jan 2015, 08:38

7

5

5,118

by: bumpbot

11 Jan 2024, 00:32

ER

The sequence a1, a2, a3, ..., an of n integers is such that ak = k if

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

1, 2

Summer3

11 Jun 2019, 04:29

338

21

117,019

by: totaltestprepNick

01 Mar 2026, 19:22

ER

Each week a certain salesman is paid a fixed amount equal to

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

1, 2

summer101

21 Jul 2012, 12:30

308

22

63,824

by: arnab24

30 Dec 2025, 22:50

ER

What is the units digit of the number z?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

summer101

05 Aug 2013, 05:23

36

8

7,205

by: bumpbot

15 Mar 2025, 08:16

ER

Alan and Peter are cycling at different constant rates on a

555-605 (Medium) | Distance and Speed Problems

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

summer101

11 May 2015, 03:34

33

10

10,194

by: bumpbot

13 May 2024, 01:01

ER

Is 2ab > ab ?

655-705 (Hard) | Exponents, Inequalities

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

summer101

14 Apr 2018, 00:41

18

4

6,702

by: bumpbot

01 Jun 2023, 02:21

ER

If x and y are positive integers, is x a factor of 12?

555-605 (Medium) | Multiples and Factors

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

summer101

26 Jul 2013, 02:38

13

6

10,074

by: bumpbot

04 Apr 2023, 08:31

ER

A pair of skis originally cost $160. After discount of x

555-605 (Medium) | Percent and Interest Problems

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

summer101

27 Mar 2013, 07:14

7

4

6,950

by: bumpbot

14 Nov 2022, 04:43

ER

Is x^2 < x - |y|?

705-805 (Hard) | Absolute Values, Inequalities

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

summer101

04 Jun 2013, 15:35

25

19

5,470

by: bumpbot

18 Oct 2022, 03:58

ER

Store R and S each discounted their selling prices of a cert

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

summer101

11 Jun 2013, 02:04

3

3,540

by: bumpbot

12 Apr 2022, 23:16

ER

The figure above represents a rectangular tile. The 8 hexago

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

summer101

11 Jun 2013, 06:19

7

10

5,315

by: BillyZ

15 Jan 2017, 01:31

ER

Is square root of a positive integer x an integer?

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

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

summer101

03 Jun 2013, 07:14

37

2

9,768

by: Bunuel

05 Jun 2013, 03:07

ER

What is the value of a+b ?

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summer101

02 Jun 2013, 05:07

2

2,043

by: Bunuel

02 Jun 2013, 10:45

If a = b + 3, what is the value of b*a? (1) b^2 + 3b = 4 (2) a = 4

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

sumitrmane

17 Nov 2023, 13:40

3

2

1,631

by: RajibDhara

03 Apr 2024, 04:43

A man mixes two types of rice (X and Y) and sells the mixture at the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

sumitkrocks

17 Apr 2021, 19:57

1

1,894

by: globaldesi

18 Apr 2021, 06:27

ER

Is 5x + 4y = 9 ? where x and y are integers. (1) xy > 0 (2) x > 0 a

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Poor Quality hide tags

sumit99kr

22 Jun 2023, 07:07

1

660

by: GMATinsight

22 Jun 2023, 07:04

2x+y<10?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

suminha

17 Aug 2020, 22:10

5

2

1,431

by: nehasomani33

19 Aug 2020, 10:15

ER

Is a^2 greater than b^2?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

suminha

17 Aug 2020, 22:02

3

2,559

by: IanStewart

18 Aug 2020, 12:26

ER

Is a + b = a^2 + b^2? (1) a and b are natural numbers. (2) a > b

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

SukhAgam

26 Feb 2025, 21:21

2

3

1,206

by: Kinshook

28 Feb 2025, 01:22

ER

Following are the vertexes of a triangle, (0,0), (0,a) and (a,b). What

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sukeshap

14 Jan 2017, 20:15

1

1,161

by: chetan2u

12 Jan 2017, 20:26

ER

What is the average of a, b and c?

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

suk1234

31 Jul 2014, 14:50

17

6

36,315

by: Bunuel

03 Oct 2025, 07:42

ER

What is the value of xyz?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

suk1234

26 Dec 2013, 10:45

28

19

11,311

by: Ankit__7182

24 Jun 2024, 06:21

ER

Minimum value of the function f(x) = |x – a| + |x – b| + |x – c|

805+ (Hard) | Absolute Values +3 tags

805+ (Hard) | Absolute Values, Algebra, Functions and Custom Characters, Min-Max Problems hide tags

sujoykrdatta

14 May 2021, 12:46

30

5

3,975

by: bumpbot

07 Jan 2025, 12:16

ER

Is xy = -1 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

sugu86

27 May 2014, 00:54

4

7

4,619

by: bumpbot

08 Aug 2015, 10:37