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

182

15

82,914

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of May 2026

1, 2

Bunuel

01 Jan 2026, 05:45

862

24

191,115

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

491,060

by: bb

29 Aug 2025, 13:27

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

3,511

by: bumpbot

25 Dec 2025, 07:51

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

7,189

by: bumpbot

28 Apr 2024, 05:27

Bob plans to draw a square ABCD with a point O on the side AB but is

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

VenoMfTw

25 Aug 2015, 23:45

10

6

3,102

by: amanvermagmat

08 May 2018, 04:48

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If P is an integer, is

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VenoMfTw

20 Jun 2016, 04:05

3

1,523

by: chetan2u

20 Jun 2016, 07:41

Sarah is in a room with 6 other children. If the other child

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

venmic

07 Sep 2012, 21:36

100

8

18,880

by: bumpbot

18 Feb 2026, 08:38

ER

If S is a finite set of consecutive even numbers, is the

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

venmic

28 May 2012, 06:01

31

4

11,120

by: bumpbot

27 Jan 2026, 05:52

ER

Is |x y| < |x| + |y|?

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

venmic

08 Aug 2012, 22:08

54

15

9,741

by: bumpbot

13 Dec 2024, 04:13

ER

Square ABCD has an area of 9 square inches. Sides AD and BC

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

venmic

20 Sep 2022, 01:29

16

9

14,968

by: bumpbot

09 Dec 2023, 03:43

ER

If p and q are positive integers, is p/q also an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

venkateshraviraj

28 Apr 2019, 08:25

3

4

1,564

by: Bunuel

28 Apr 2019, 08:26

ER

What is the value of positive integer m?

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

vdm

14 Sep 2015, 07:48

19

10

3,836

by: bumpbot

16 Dec 2023, 09:39

ER

Is 27^a/6^b a prime number?

705-805 (Hard) | Algebra +2 tags

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

vdm

21 Sep 2015, 09:24

13

10

3,883

by: Pankaj0901

31 Mar 2022, 12:04

ER

If x, y and z are positive numbers, is z between x and y?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

1, 2

vcbabu

23 May 2021, 12:18

555

25

106,742

by: bumpbot

01 Feb 2025, 01:32

ER

If n is an integer, what is the remainder when n is divided

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vcbabu

12 Oct 2013, 09:19

19

5

14,477

by: IanStewart

21 Jun 2009, 10:40

ER

The participants in a race consisted of 3 teams with 3 runners on each

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

vannu

19 Jul 2019, 00:33

150

12

23,876

by: bumpbot

13 Mar 2025, 19:11

ER

A sum of $200,000 from a certain estate was devided among a

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

vanidhar

30 Sep 2010, 01:45

156

13

33,316

by: bumpbot

22 Feb 2026, 16:03

ER

If point x is inside a circle with center o and radius 2, is

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

vanidhar

13 Oct 2010, 02:02

27

3

11,162

by: bumpbot

27 Sep 2025, 23:54

ER

If digit h is the hundredths' digit in the decimal d=0.2h6,

555-605 (Medium) | Fractions and Ratios

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

1, 2

vanidhar

20 Sep 2012, 04:55

179

20

35,986

by: bumpbot

21 May 2025, 22:27

ER

Is A multiple of 6?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Vamshi8411

17 Sep 2012, 05:50

23

6

9,079

by: bumpbot

22 Apr 2024, 02:02

What is the area of the triangle ABC?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Vamshi8411

26 Jul 2012, 05:37

13

5

9,961

by: bumpbot

07 Dec 2021, 07:03

ER

Is b/3 an integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

1, 2

valerjo79

26 Nov 2012, 03:16

75

21

15,415

by: bumpbot

10 Jul 2023, 09:58

ER

If x is an integer, is x even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

valerjo79

20 Nov 2012, 00:15

7

6

7,188

by: bumpbot

08 Jul 2019, 00:46

ER

If 0 < x < y, what is the value of (x + y)^2/(x- y)^2?

555-605 (Medium) | Algebra, Exponents

555-605 (Medium) | Algebra, Exponents hide tags

Val1986

12 Aug 2022, 06:23

185

8

71,249

by: totaltestprepNick

01 Mar 2026, 14:10

ER

During a 10-week summer vacation, was the average (arithmetic mean)

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

vaivish1723

20 Nov 2023, 08:18

103

14

27,963

by: bumpbot

30 Jan 2026, 03:53

ER

Does the decimal equivalent of p/q, where p and q are positive integer

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

vaivish1723

15 Sep 2020, 07:29

127

19

42,772

by: bumpbot

28 Oct 2025, 04:28

ER

During an experiment, some water was removed from each of

555-605 (Medium) | Statistics and Sets Problems

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

vaivish1723

13 May 2010, 04:07

431

19

72,590

by: bumpbot

07 Sep 2025, 05:13

ER

The operation* represents either addition, subtraction, or multiplicat

555-605 (Medium) | Arithmetic, Functions and Custom Characters

555-605 (Medium) | Arithmetic, Functions and Custom Characters hide tags

vaivish1723

16 Oct 2019, 03:49

92

8

30,764

by: bumpbot

14 Jun 2025, 03:45

ER

Lists S and T consist of the same number of positive integers. Is the

605-655 (Medium) | Statistics and Sets Problems

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

vaivish1723

22 May 2021, 13:27

112

19

23,429

by: Bunuel

17 May 2025, 11:40

ER

If x, y and z are positive integers, is x% of y bigger than

555-605 (Medium) | Percent and Interest Problems

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

vaivish1723

20 Jul 2009, 10:24

24

6

13,508

by: bumpbot

28 Mar 2025, 11:19

ER

If x(x - 5)(x + 2) = 0, is x negative?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

vaivish1723

17 Jan 2010, 10:43

63

7

22,185

by: bumpbot

21 Nov 2024, 00:23

ER

If p, s, and t are positive prime numbers, what is the value

555-605 (Medium) | Algebra +2 tags

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

vaivish1723

23 Jan 2010, 00:18

14

9

11,292

by: Basshead

28 Oct 2020, 12:21

ER

Is 2/x + 2/y = 30?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

vaishnogmat

17 Nov 2013, 23:25

7

15

4,940

by: bumpbot

14 Nov 2023, 14:51

ER

Is a^3 > a^2 ? (1) 1/a > a (2) a^5 > a^3

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

vaibhav1221

09 Aug 2018, 06:25

7

3

3,759

by: bumpbot

24 Jul 2024, 07:39

ER

Is sqrt x an integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

vaibhav1221

16 Sep 2019, 04:12

1

1,704

by: chetan2u

16 Sep 2019, 04:12

ER

What is the equation of the line L?

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

vaibhav1221

02 Sep 2019, 00:14

4

12

2,779

by: vanam52923

02 Sep 2019, 23:10

ER

A jewelry dealer initially offered a bracelet for sale at an

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

vageesh

11 Jan 2010, 06:11

219

9

28,500

by: bumpbot

18 Jul 2025, 08:25

ER

Is a three-digit number xyz divisible by 7?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

vad3tha

21 Aug 2014, 01:42

23

6

6,668

by: bumpbot

05 Jul 2024, 12:25

ER

Given a set {x, y, z}, if the first term in the data set

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v1rok

08 Aug 2012, 05:04

3

5

13,265

by: shrouded1

28 Oct 2010, 03:37

ER

If x = y + 2, where x, y are positive integers. Is (x + y) a multiple

605-655 (Medium) | Algebra, Number Properties

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

v12345

12 Nov 2018, 10:39

8

3

1,570

by: Archit3110

15 Nov 2018, 03:19

ER

If ax + b = 0, is x > 0 ? (1) a + b > 0 (2) a - b > 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

1, 2, 3

uzzy12

24 Aug 2010, 17:41

1.1k

47

146,282

by: crimson_noise

22 Feb 2026, 20:58

ER

If w + x < 0, is w - y > 0 ?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

uzzy12

18 Aug 2010, 21:31

8

5

4,090

by: bumpbot

02 Jan 2026, 02:21

ER

What is the surface area of the cube ?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

UtterNonsense

26 Jul 2011, 06:42

1

5

6,204

by: bumpbot

08 Nov 2024, 10:29

ER

If x is a non-zero number, is x^5 < x^7?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

UShukla

23 Apr 2020, 12:29

3

7

2,097

by: bumpbot

03 Sep 2023, 09:15

ER

All of the m men and w women who were members of club G last year are

705-805 (Hard) | Percent and Interest Problems

705-805 (Hard) | Percent and Interest Problems hide tags

user22020

17 Feb 2024, 23:04

88

13

11,638

by: bumpbot

05 Jan 2026, 06:16

ER

A certain company has 255 employees. If an employee is to be selected

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

1, 2

unuk50

19 Jun 2016, 05:17

173

20

40,673

by: bumpbot

28 May 2026, 00:57

ER

If |x - 5| = 2|x - 8|, then what is the value of x? (1) |x2 – 100| >

705-805 (Hard) | Absolute Values, Inequalities

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

unraveled

31 Jan 2020, 11:42

37

4

4,150

by: bumpbot

25 Mar 2025, 04:00

ER

If a, b, c, and d are integers where 0 < a < b < c < d, what is the va

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

unraveled

21 Aug 2019, 01:11

11

6

4,080

by: bumpbot

18 Aug 2024, 23:04

ER

What is the sum of the series 12, 2, 15, -1, 18, -4, 21, -7, ..... 30?

655-705 (Hard) | Arithmetic, Sequences

655-705 (Hard) | Arithmetic, Sequences hide tags

unraveled

09 Dec 2019, 11:12

24

10

5,419

by: bumpbot

04 Aug 2024, 13:42

ER

What is the remainder when 7 + 10n is divided by 3, if n is a single

555-605 (Medium) | Number Properties, Remainders

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

unraveled

27 Nov 2019, 23:42

6

4

3,400

by: bumpbot

11 Apr 2024, 09:42

ER

Is triangle ABC a right triangle? 1. Angle BAC + angle ACB = 100

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

unraveled

07 Jul 2020, 07:17

7

4

5,579

by: ahamd

23 Feb 2023, 12:02

ER

What is the greatest common divisor of positive integers x and y? (1)

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

unraveled

03 Jan 2020, 01:36

7

6

3,496

by: bumpbot

12 Dec 2022, 05:12