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

78,663

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,481

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

487,878

by: bb

29 Aug 2025, 13:27

ER

What is the value of the positive integer a?

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

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

Bunuel

29 Jan 2015, 08:28

55

16

12,211

by: Vivek1707

17 Jan 2026, 06:30

ER

In the sequence a1,a2,a3,…, an,an is determined for all values of n>2

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

Bunuel

29 Jan 2015, 08:35

22

8

8,851

by: bumpbot

08 Jul 2025, 15:02

ER

What is the value of integer x?

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

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

Bunuel

29 Jan 2015, 08:36

15

10

7,339

by: bumpbot

25 Dec 2024, 05:56

ER

The height of a certain right circular cylinder is greater than its di

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

30 Jan 2015, 07:15

9

10

7,342

by: bumpbot

05 Aug 2023, 11:49

ER

What is the value of n?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

30 Jan 2015, 07:17

14

6,423

by: bumpbot

03 Jan 2025, 01:04

ER

give n is a positive integer, what is the reminder when 3^n is divided

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Turkish

01 Feb 2015, 15:42

6

4

3,229

by: bumpbot

28 Mar 2022, 08:10

ER

In the sequence a1,a2,…,an,…,a1=x and an=y–zan−1 for all n>1. Is a3>a2

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Bunuel

02 Feb 2015, 07:19

48

6

8,359

by: bumpbot

17 Jul 2025, 04:02

ER

For triangle ABC, angle ABC = 90 degrees, and side AC has a length of

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

04 Feb 2019, 05:10

67

17

173,748

by: bumpbot

23 May 2023, 16:46

ER

Is |x^7|*y^3*z^4>0 (1) xy < 0 (2) yz > 0

555-605 (Medium) | Absolute Values, Inequalities

555-605 (Medium) | Absolute Values, Inequalities hide tags

Bunuel

02 Feb 2015, 07:21

21

8

7,642

by: blanchif

02 Jan 2021, 09:04

ER

A painter wishes to paint a house turquoise. To make the color, he sel

555-605 (Medium) | Mixture Problems

555-605 (Medium) | Mixture Problems hide tags

Bunuel

02 Feb 2015, 07:22

55

10

13,255

by: bumpbot

20 Mar 2025, 02:43

ER

A number of individuals volunteer to walk dogs at a certain kennel thi

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

02 Feb 2015, 07:23

15

8

6,733

by: bumpbot

17 May 2025, 06:36

ER

If each term in an infinite sequence is found by the equation Sx=8x–6,

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Bunuel

03 Feb 2015, 09:42

41

12

7,998

by: bumpbot

06 Sep 2023, 03:06

ER

For integers a, b, x, and y, ab + yb = xy - yb. If a - b = 0 and x + y

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

03 Feb 2015, 09:43

59

13

16,713

by: dhruvie

18 Sep 2025, 05:03

ER

Danny bought some packets of pens, each packet at a cost of $4, and so

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

03 Feb 2015, 10:01

25

10

8,119

by: bot00078

15 Oct 2025, 11:21

ER

Are the integers a, b and c consecutive?

605-655 (Medium) | Statistics and Sets Problems

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

kdatt1991

03 Feb 2015, 18:17

34

8

12,854

by: bumpbot

04 Mar 2026, 11:45

ER

In the figure above, car A and car B simultaneously begin travelling..

655-705 (Hard) | Distance and Speed Problems, Geometry

655-705 (Hard) | Distance and Speed Problems, Geometry hide tags

kdatt1991

04 Feb 2015, 02:02

49

9

15,197

by: bumpbot

29 Oct 2023, 05:28

ER

If p = (n)(5^x)(3^k), is p divisible by 10?

655-705 (Hard) | Exponents, Multiples and Factors

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

Bunuel

04 Feb 2015, 08:42

25

5

5,167

by: bumpbot

02 Jan 2026, 10:34

ER

x is a nonzero number. Is xy < 0?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

04 Feb 2015, 08:43

7

9

3,784

by: bumpbot

24 Jan 2022, 11:38

ER

If mn < np < 0, is n < 1? (1) n is an integer (2) m < p

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

04 Feb 2015, 08:44

30

8

7,630

by: bumpbot

25 Dec 2024, 05:47

ER

Rick can solve x algebra problems per minute. Matt can solve y calculu

605-655 (Medium) | Inequalities, Work and Rate Problems

605-655 (Medium) | Inequalities, Work and Rate Problems hide tags

Bunuel

04 Feb 2015, 08:45

34

17

10,016

by: bumpbot

29 Nov 2025, 08:44

ER

If y rounded to the nearest thousandth is .00x, is x > 2?

555-605 (Medium) | Fractions and Ratios

555-605 (Medium) | Fractions and Ratios hide tags

Bunuel

04 Feb 2015, 08:46

15

9

4,982

by: bumpbot

14 Feb 2022, 13:29

ER

In triangle ABC, angle ABC is 105 degrees. Is the area of triangle ABC

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

05 Feb 2015, 08:58

39

9

12,105

by: bumpbot

08 Sep 2023, 10:48

ER

Is positive integer x prime?

655-705 (Hard) | Multiples and Factors, Number Properties

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

Bunuel

05 Feb 2015, 09:00

20

7

5,825

by: bumpbot

31 May 2024, 04:05

ER

Is BG > EC?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

05 Feb 2015, 09:09

14

5

5,666

by: bumpbot

03 Aug 2022, 23:59

ER

What is the maximum number of arrangements in which N students can be

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

05 Feb 2015, 09:10

8

6,582

by: KarishmaB

30 Mar 2015, 21:01

ER

What is the mean of the exams taken by a group of students?

505-555 (Easy) | Statistics and Sets Problems

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

Bunuel

05 Feb 2015, 09:13

14

6

6,924

by: bumpbot

19 Apr 2024, 01:01

ER

Is xy>ab ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

06 Feb 2015, 07:16

23

7

6,990

by: bumpbot

09 Aug 2023, 04:28

ER

Is 10–6x<0?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

06 Feb 2015, 07:17

13

6

5,517

by: bumpbot

07 Jan 2022, 11:52

ER

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

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

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

Bunuel

06 Feb 2015, 07:19

26

5

9,102

by: bumpbot

16 Jan 2026, 22:47

ER

Is x = 1? (1) x = x^3^0 (2) x^2 - 2x + 1 = 0

505-555 (Easy) | Algebra, Exponents

505-555 (Easy) | Algebra, Exponents hide tags

Bunuel

06 Feb 2015, 07:21

13

6

5,129

by: bumpbot

21 Apr 2023, 05:16

ER

Triangles ABC and DEF are similar. What percent of the area of triangl

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

06 Feb 2015, 07:33

12

6

12,091

by: bumpbot

29 Dec 2021, 08:28

ER

To make the school racquetball team, Larry must win at least 75% of hi

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

06 Feb 2015, 07:34

3

6

4,100

by: Bunuel

23 Apr 2017, 03:38

ER

At what speed was Erik running when he was at the halfway point of his

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

pacifist85

06 Feb 2015, 09:52

26

13

9,576

by: bumpbot

12 Aug 2024, 07:03

ER

A box contains red balls, white balls, and yellow balls. If a ball is

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

pacifist85

06 Feb 2015, 12:12

4

5

5,635

by: bumpbot

29 Jan 2026, 00:06

ER

What are the coordinates of point B ?

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

pacifist85

06 Feb 2015, 13:32

33

12

16,259

by: bumpbot

12 Feb 2024, 05:46

ER

Is p > q? (1) 1/q < 1/p (2) p/q > 0.25

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

rajthakkar

18 Nov 2022, 04:46

15

3

7,884

by: bumpbot

24 Aug 2025, 21:39

ER

If p > q, is p a negative number?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

rajthakkar

10 Jun 2015, 10:50

5

6

3,498

by: bumpbot

11 Jan 2022, 20:16

ER

p>q, Is q negative?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

rajthakkar

08 Feb 2015, 01:16

3

6

3,481

by: bumpbot

14 Jan 2022, 01:30

ER

In the rectangular coordinate system above, if OB < BC then is the are

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

TARGET730

09 Feb 2015, 03:34

9

7

4,170

by: chetan2u

16 Feb 2015, 18:58

ER

If the length of each edge of a certain rectangular solid is an

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

TARGET730

09 Feb 2015, 03:36

20

7

6,876

by: bumpbot

08 Aug 2022, 20:52

ER

What is the value of integer z?

655-705 (Hard) | Number Properties, Remainders

655-705 (Hard) | Number Properties, Remainders hide tags

Bunuel

09 Feb 2015, 06:30

63

19

12,865

by: Bunuel

29 Jan 2025, 00:23

ER

An estate of $216,000 is divided equally among p people who must each

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

09 Feb 2015, 06:31

4

6

2,993

by: bumpbot

10 Nov 2016, 13:37

ER

If b is selected at random from Set A, what is the probability that b

655-705 (Hard) | Number Properties, Probability

655-705 (Hard) | Number Properties, Probability hide tags

Bunuel

09 Feb 2015, 06:33

42

9

8,915

by: bumpbot

07 Sep 2025, 16:26

ER

Is a an even integer?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

09 Feb 2015, 06:35

47

8

6,853

by: bumpbot

02 Feb 2025, 01:36

ER

Points (a, b) and (c, d) lie on line L in the coordinate plane. Does p

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

Bunuel

09 Feb 2015, 06:36

32

13

9,967

by: bumpbot

20 Sep 2023, 06:58

ER

If x and y are both positive perfect cubes, what is x+y?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

09 Feb 2015, 06:37

13

7

5,898

by: bumpbot

13 Jan 2022, 08:05

ER

If a and b are positive integers, 2 < a, and 0 < b < 10, is the hundre

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

09 Feb 2015, 06:39

20

11

4,741

by: bumpbot

31 Dec 2021, 11:15

ER

If N different positive integers are added and the sum is denoted as S

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

09 Feb 2015, 06:40

24

8

6,541

by: bumpbot

01 Apr 2024, 04:26

ER

Given the figure to the left, is y less than 35?

655-705 (Hard) | Coordinate Plane, Geometry

655-705 (Hard) | Coordinate Plane, Geometry hide tags

Bunuel

09 Feb 2015, 06:41

27

9

6,906

by: bumpbot

26 Dec 2023, 04:32

ER

What is the value of N?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

09 Feb 2015, 06:42

77

13

15,105

by: GMATGuruNY

25 Jul 2024, 17:09