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

78,701

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

856

24

188,512

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

487,922

by: bb

29 Aug 2025, 13:27

ER

List L consists of the positive integers

555-605 (Medium) | Statistics and Sets Problems

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

TheGmatTutor

13 Jul 2015, 10:51

5

2

2,702

by: GMATinsight

13 Jul 2015, 12:18

ER

Is m^2n + mn^2 = 0 ?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

14 Jul 2015, 00:55

23

18

5,001

by: bumpbot

07 Sep 2019, 01:56

ER

Let x be a two-digit number whose tens digit is t and whose units

555-605 (Medium) | Fractions and Ratios, Multiples and Factors

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

Bunuel

14 Jul 2015, 00:58

10

8

7,131

by: bumpbot

09 Aug 2022, 11:54

ER

Is x greater than 2?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

14 Jul 2015, 03:29

5

9

4,334

by: bumpbot

01 Feb 2021, 04:44

ER

If [x] denotes the largest integer smaller than x, is [x]>[x]?

805+ (Hard) | Functions and Custom Characters

805+ (Hard) | Functions and Custom Characters hide tags

PathFinder007

14 Jul 2015, 10:44

32

7

8,647

by: Bunuel

25 Apr 2023, 00:52

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

5,581

by: bumpbot

22 Feb 2025, 03:21

ER

A school has 60 students. Each student studies either Cantonese or Fre

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

16 Jul 2015, 01:19

4

11

8,518

by: Kinshook

18 Mar 2020, 09:45

ER

What is the value of integer n if the inequality 30 > n > 9 holds?

Sub 505 (Easy) | Multiples and Factors, Remainders

Sub 505 (Easy) | Multiples and Factors, Remainders hide tags

Bunuel

16 Jul 2015, 01:22

15

9

4,471

by: bumpbot

06 Aug 2020, 07:15

ER

According to the figure above, does AD = BD?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

16 Jul 2015, 01:24

12

8

4,503

by: bumpbot

20 Mar 2023, 08:38

ER

If m and n are different positive integers, then how many prime number

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

16 Jul 2015, 01:27

14

8

8,180

by: bumpbot

27 Jun 2023, 11:49

ER

A jar has 10 marbles, a mix of red and white. Two marbles are randomly

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

Bunuel

24 Apr 2026, 11:42

35

7

8,064

by: bumpbot

21 Mar 2023, 08:12

ER

The table above shows quantities of the mobile phone models sold by a

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

16 Jul 2015, 01:33

12

9

4,778

by: bumpbot

13 Nov 2018, 09:38

ER

In the ﬁgure shown, lines k and m are parallel to each other. Is x = z

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

WillGetIt

18 Jul 2015, 01:43

188

14

31,651

by: bumpbot

29 Jun 2023, 03:53

ER

What is the value of x?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

23 Jul 2015, 02:45

6

8

2,878

by: bumpbot

04 Aug 2022, 06:01

ER

What is the value of x + y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

23 Jul 2015, 02:55

9

5

2,993

by: bumpbot

21 Mar 2019, 08:38

ER

Is the area of the top of a rectangular pool larger than 1000 square

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

23 Jul 2015, 03:10

7

5

3,255

by: chaitnya10

07 Jun 2021, 07:05

ER

Is k^2 + k 2 > 0? (1) k is an integer greater than zero.

605-655 (Medium) | Inequalities, Number Properties

605-655 (Medium) | Inequalities, Number Properties hide tags

Bunuel

23 Jul 2015, 03:18

14

9

6,922

by: bumpbot

12 Jan 2023, 10:38

ER

Is the slope of Line L positive?

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

GMATinsight

23 Jul 2015, 07:03

6

3

3,421

by: bumpbot

06 May 2017, 06:53

ER

Does line L pass through Quadrant II?

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

GMATinsight

23 Jul 2015, 07:07

8

4

4,629

by: bumpbot

30 Jul 2023, 06:08

ER

In the xy-plane, both line K and L intersect with axis-X. Is K’s inter

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

GMATinsight

23 Jul 2015, 07:19

15

12

4,315

by: bumpbot

28 Aug 2023, 09:16

ER

In the xy-plane, the straight-line graphs of the three equations above

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

1, 2

Bunuel

23 Mar 2025, 02:56

422

22

50,306

by: bumpbot

07 Jan 2025, 10:56

ER

A tank is filled with gasoline to a depth of exactly 2 feet. The tank

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

1, 2

iamschnaider

24 Jul 2015, 00:23

694

39

85,691

by: bumpbot

22 Jan 2025, 10:34

ER

A pumpkin patch contains x pumpkins that weigh 10 pounds each and y

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

24 Jul 2015, 00:52

19

12

8,478

by: bumpbot

14 Jan 2025, 08:20

ER

For the integers m, n, r, and s, if m + n = 250 and m > n, is (m – r)

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

24 Jul 2015, 00:55

41

11

9,099

by: bumpbot

08 Feb 2024, 05:23

ER

A bag contains black and white marbles. How many white marbles are the

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

Bunuel

24 Jul 2015, 00:57

5

7

8,856

by: bumpbot

20 Jun 2020, 05:43

ER

A shop offers candy bars for sale either individually or in packs of

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

11 Aug 2025, 05:16

12

4

7,079

by: bumpbot

12 Sep 2025, 09:19

ER

The operators ‘*’ and ‘+’ operate only on the numbers 0 and 1 as defin

705-805 (Hard) | Functions and Custom Characters

705-805 (Hard) | Functions and Custom Characters hide tags

Bunuel

27 Jul 2015, 14:21

16

12

3,935

by: bumpbot

19 Oct 2025, 04:21

ER

If n = 3k, is k an integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

28 Jul 2015, 00:44

16

6

10,087

by: bumpbot

06 Jan 2024, 14:26

ER

If x, y, and z are positive integers, is y > x?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

28 Jul 2015, 00:50

14

10

7,268

by: bumpbot

08 Jan 2022, 09:36

ER

Is (x + y)^3 an even integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

28 Jul 2015, 00:56

11

8

5,681

by: tirthshah2013

18 Oct 2022, 01:22

ER

What is the value of x?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

28 Jul 2015, 01:40

13

7

5,978

by: bumpbot

17 Mar 2023, 11:57

ER

If r + s = 4, is s < 0? (1) -4 > -r (2) r > 2s + 2

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

28 Jul 2015, 01:43

6

4,917

by: Bunuel

17 Aug 2015, 09:33

ER

If y is an integer, is y^2 divisible by 15?

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

noTh1ng

29 Jul 2015, 01:15

3

2

2,947

by: bumpbot

27 Dec 2023, 04:44

ER

Is the quadrilateral ABCD a square?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

29 Jul 2015, 03:09

26

12

9,642

by: bumpbot

27 Dec 2023, 03:35

ER

The three integers in the set {x, y, z} are all less than 30. How many

655-705 (Hard) | Min-Max Problems, Number Properties

655-705 (Hard) | Min-Max Problems, Number Properties hide tags

Bunuel

29 Jul 2015, 03:10

37

12

7,878

by: bumpbot

28 Dec 2021, 01:29

ER

A pumpkin patch contains x pumpkins that weigh 10 pounds each and y pu

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

29 Jul 2015, 03:24

8

5

4,058

by: bumpbot

19 Jan 2026, 03:18

ER

Is |x-z| + |x| = |z|?

705-805 (Hard) | Absolute Values, Inequalities

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

noTh1ng

29 Jul 2015, 03:28

14

13

4,133

by: bumpbot

23 Jul 2019, 00:29

ER

Line A passes through point (r, s) on the coordinate plane. Is the

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

Bunuel

29 Jul 2015, 03:46

28

6

7,800

by: bumpbot

24 Sep 2023, 00:31

ER

Three circles with radii of 1, 2, and 3, lie on the same plane. Do any

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

29 Jul 2015, 15:42

31

5

7,138

by: bumpbot

02 Aug 2022, 07:49

ER

For integers x and y, 1 < x < y. Is xy a factor of 11!?

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

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

Bunuel

29 Jul 2015, 15:52

26

7

5,987

by: bumpbot

13 May 2022, 17:27

ER

If on a fishing trip Jim and Tom each caught some fish, which one

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

30 Jul 2015, 10:37

13

7

16,667

by: bumpbot

21 Dec 2023, 02:37

ER

How many of the boys in a group of 100 children have brown hair? (1) O

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

30 Jul 2015, 10:38

19

7

14,714

by: bumpbot

12 Jun 2024, 02:18

ER

If x + y = 10, is x = 4? (1) y is not 6. (2) y is 4.

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

30 Jul 2015, 10:42

12

15

3,128

by: bumpbot

21 Nov 2018, 19:41

ER

If x + y + z = 6, then do any two of the three numbers x, y, and z sum

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

30 Jul 2015, 10:49

6

10

3,829

by: LevanKhukhunashvili

28 Mar 2018, 01:22

ER

Is x> 0? (1) |x|-x = 0

605-655 (Medium) | Absolute Values, Inequalities

605-655 (Medium) | Absolute Values, Inequalities hide tags

pirimidin

01 Aug 2015, 10:21

11

3

3,138

by: bumpbot

04 Oct 2023, 00:41

ER

Alex spends 30% of his income on his children’s education, 20% on

805+ (Hard) | Percent and Interest Problems, Word Problems

805+ (Hard) | Percent and Interest Problems, Word Problems hide tags

VenoMfTw

03 Aug 2015, 00:45

27

7

7,146

by: bumpbot

28 Apr 2024, 05:27

ER

Mr. X paid for a painting using currency notes of denominations 1$, 2$

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

VenoMfTw

16 Aug 2015, 11:32

4

3

3,465

by: bumpbot

25 Dec 2025, 07:51

ER

Is triangle ABC obtuse angled?

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

1, 2

Tornikea

16 Aug 2015, 11:36

163

22

18,105

by: avigutman

23 Apr 2023, 07:05

ER

If O and P are each circular regions, what is the area of the smaller

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

noTh1ng

07 Aug 2015, 06:17

2

7

3,020

by: bumpbot

15 Jul 2019, 04:09

ER

A cyclist rode up and down a mountain along the same route each way. W

555-605 (Medium) | Distance and Speed Problems

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

RudeyboyZ

16 Aug 2015, 10:13

36

7

13,921

by: bumpbot

25 Dec 2025, 17:38