GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

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

Bunuel

25 Oct 2022, 08:11

179

15

79,081

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

857

24

188,731

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,296

by: bb

29 Aug 2025, 13:27

ER

What is the positive integer n?

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

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

enigma123

12 Jun 2013, 03:15

59

7

15,095

by: bumpbot

03 Jun 2024, 11:51

ER

What is the three-digit number abc, given that a, b, and c

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

enigma123

23 May 2013, 04:47

63

8

25,500

by: bumpbot

20 Jul 2024, 06:44

ER

What is the greatest common factor of positive integers a

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

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

enigma123

16 Dec 2012, 09:12

103

18

26,154

by: bumpbot

25 Aug 2024, 01:55

ER

A Town T has 40,000 residents, 25 percent of whom are age 60

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

enigma123

26 Feb 2012, 17:43

14

6

8,903

by: bumpbot

24 Sep 2024, 03:49

ER

A combined of 55 light bulbs are stored in two boxes; of these, a tota

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

enigma123

11 Jun 2019, 03:18

30

4

17,148

by: bumpbot

27 Sep 2024, 23:57

ER

If the sum of the digits of the positive two-digit number x is 4, what

555-605 (Medium) | Arithmetic, Fractions and Ratios

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

enigma123

18 Dec 2017, 23:52

26

12

21,893

by: bumpbot

02 Oct 2024, 04:49

ER

What is the value of the three-digit number SSS if SSS is the sum of

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

enigma123

16 Dec 2017, 00:44

90

14

26,665

by: bumpbot

09 Oct 2024, 01:22

ER

Is x less than 20?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

enigma123

20 Mar 2012, 09:07

95

14

44,792

by: bumpbot

16 Oct 2024, 06:58

ER

Given that ABCD is a rectangle, is the area of triangle ABE>

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

enigma123

04 Feb 2012, 17:12

186

18

54,195

by: Bunuel

16 Oct 2024, 14:27

ER

If the length of side AB is 17, is triangle ABC a right tria

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

enigma123

05 Feb 2012, 04:13

29

14

17,329

by: bumpbot

05 Nov 2024, 02:30

ER

Is x divisible by 30?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

enigma123

12 Jul 2013, 10:46

116

19

18,097

by: bumpbot

15 Nov 2024, 02:47

ER

What is the value of integer x?

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

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

enigma123

27 Jun 2011, 21:31

76

16

14,087

by: bumpbot

19 Nov 2024, 07:59

ER

An empty swimming pool with a capacity of 75,000 liters is

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

enigma123

01 Apr 2012, 16:06

70

18

24,913

by: zjhon

14 Dec 2024, 14:54

ER

p^a*q^b*r^c*s^d=x, where x is a perfect square. If p, q, r

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

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

enigma123

26 Oct 2023, 00:20

74

19

14,700

by: KarishmaB

19 Jan 2025, 22:05

ER

If d is a positive integer and f is the product of the first 30 positi

605-655 (Medium) | Exponents +2 tags

605-655 (Medium) | Exponents, Multiples and Factors, Number Properties hide tags

1, 2

enigma123

27 Aug 2019, 01:58

501

22

59,849

by: bumpbot

01 Feb 2025, 09:14

ER

If r – s = 3p , is p an integer? (1) r is divisible by 735

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

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

enigma123

07 Oct 2017, 06:56

124

17

20,721

by: bumpbot

05 Feb 2025, 07:50

ER

If y = 0.jkmn, where j, k, m, and n each represent a nonzero

655-705 (Hard) | Arithmetic, Fractions and Ratios

655-705 (Hard) | Arithmetic, Fractions and Ratios hide tags

enigma123

01 Apr 2012, 12:33

66

7

13,184

by: bumpbot

17 Feb 2025, 00:47

ER

If x and y are integers, does x^y * y^(-x) = 1?

805+ (Hard) | Exponents, Inequalities

805+ (Hard) | Exponents, Inequalities hide tags

enigma123

31 Aug 2015, 00:27

102

10

17,516

by: bumpbot

17 Mar 2025, 10:26

ER

What is the positive integer n?

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

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

enigma123

01 Oct 2012, 05:47

142

16

32,797

by: bumpbot

17 May 2025, 09:26

ER

Both Betty and Wilma earn annual salaries of more than $50,000.

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

enigma123

20 Nov 2023, 08:17

65

11

18,818

by: bumpbot

31 May 2025, 09:50

ER

In the xy-coordinate system, do any points on line k lie in quadrant I

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

enigma123

15 Feb 2012, 17:10

62

14

18,300

by: bumpbot

02 Jun 2025, 07:45

ER

Is the integer z divisible by 6?

605-655 (Medium) | Multiples and Factors, Number Properties

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

1, 2

enigma123

25 Jun 2011, 12:22

61

20

21,372

by: GMATinsight

03 Jun 2025, 03:37

ER

An infinite sequence of positive integers is called a perfect sequence

805+ (Hard) | Number Properties, Sequences

805+ (Hard) | Number Properties, Sequences hide tags

enigma123

16 Feb 2012, 16:11

113

9

16,699

by: bumpbot

16 Jun 2025, 11:55

ER

If a car traveled from Townsend to Smallville at an average

555-605 (Medium) | Distance and Speed Problems

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

enigma123

07 Nov 2011, 14:46

176

19

30,201

by: Bunuel

24 Jun 2025, 23:56

ER

If two elements are dropped from set X {-10, -8, 0, 6, 7}, what will

555-605 (Medium) | Statistics and Sets Problems

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

enigma123

10 Mar 2020, 01:48

30

9

14,693

by: bumpbot

08 Jul 2025, 11:07

ER

An infinite sequence of positive integers is called a coprime sequence

655-705 (Hard) | Number Properties, Sequences

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

enigma123

13 Feb 2012, 17:14

70

11

15,525

by: bumpbot

08 Jul 2025, 22:29

ER

If x is a positive integer, is x-1 a factor of 104?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

enigma123

22 Jan 2012, 16:44

90

14

22,324

by: bumpbot

15 Jul 2025, 09:57

ER

Each first-year student at a certain school selects either

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

enigma123

29 Mar 2012, 15:59

15

8

8,410

by: bumpbot

17 Jul 2025, 11:20

ER

Given that a, b, c, and, d are non-negative integers, is the

655-705 (Hard) | Algebra, Number Properties

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

enigma123

09 May 2020, 12:09

63

12

17,142

by: bumpbot

21 Jul 2025, 02:09

ER

In a certain conference room each row of chairs has the same number of

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

enigma123

20 Mar 2012, 10:30

164

9

53,508

by: bumpbot

28 Jul 2025, 13:01

ER

In an election for class president, each of 32 students vote

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

enigma123

25 Mar 2014, 15:49

13

7

11,158

by: bumpbot

10 Aug 2025, 13:40

ER

In order to play a certain game, 24 players must be split in

655-705 (Hard) | Multiples and Factors

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

enigma123

19 Jan 2012, 17:14

40

18

19,418

by: kabirgandhi

02 Sep 2025, 22:00

ER

If r and s are consecutive even integers, is r greater than

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

enigma123

15 Feb 2012, 18:23

3

9

4,529

by: bumpbot

13 Sep 2025, 11:03

ER

If n is a positive integer and r is the remainder when (n - 1)(n + 1)

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

1, 2

enigma123

21 Jan 2012, 17:57

832

29

143,304

by: Pratham_Patil24

26 Sep 2025, 02:12

ER

If a and b are positive integers, what is the remainder when

555-605 (Medium) | Exponents, Remainders

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

enigma123

26 Feb 2012, 16:30

108

14

18,982

by: bumpbot

08 Oct 2025, 05:11

ER

Rasheed bought two kinds of candy bars, chocolate and toffee, that cam

555-605 (Medium) | Fractions and Ratios, Word Problems

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

enigma123

21 Mar 2012, 12:37

278

11

56,723

by: bumpbot

14 Oct 2025, 23:22

ER

Of a physician's clients, 120 have health insurance or

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

enigma123

01 Apr 2012, 04:58

7

5,132

by: bumpbot

20 Oct 2025, 01:03

ER

The sum of n consecutive positive integers is 45. What is

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

1, 2

enigma123

12 Jun 2013, 03:33

185

20

40,985

by: bumpbot

25 Oct 2025, 08:03

ER

If x^3-x=n and x is a positive integer greater than 1, is n

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

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

enigma123

31 Jan 2012, 16:25

245

16

45,657

by: bumpbot

28 Oct 2025, 09:22

ER

If x = 0.abcd, where a, b, c, and d each represent a nonzero

555-605 (Medium) | Arithmetic, Fractions and Ratios

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

enigma123

11 Feb 2012, 19:10

136

5

24,121

by: bumpbot

30 Oct 2025, 00:21

ER

A group of men and women gathered to compete in a marathon.

655-705 (Hard) | Statistics and Sets Problems

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

enigma123

17 Nov 2011, 16:42

182

17

35,547

by: bumpbot

13 Nov 2025, 08:51

ER

Is D greater than 1.55

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

enigma123

15 Feb 2014, 16:28

30

6

9,096

by: bumpbot

14 Nov 2025, 06:42

ER

Grace makes an initial deposit of x dollars into a savings a

705-805 (Hard) | Percent and Interest Problems

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

enigma123

18 Apr 2014, 04:33

188

10

23,890

by: bumpbot

17 Nov 2025, 21:26

ER

If a, b, c, d and e are integers and p=2^a3^b and q=2^c3

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

1, 2

enigma123

09 Jan 2012, 21:58

231

24

39,114

by: bumpbot

22 Nov 2025, 08:49

ER

Is x the square of an Integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

enigma123

23 May 2013, 05:19

51

5

17,167

by: bumpbot

28 Nov 2025, 02:44

ER

After winning 80 percent of the first 40 games it played

555-605 (Medium) | Percent and Interest Problems, Word Problems

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

enigma123

28 Jul 2025, 08:39

43

6

13,568

by: mattisweb

30 Nov 2025, 07:24

ER

A certain football team played x games last season, of which

555-605 (Medium) | Percent and Interest Problems

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

enigma123

03 Nov 2011, 14:19

67

8

24,736

by: luisdicampo

02 Dec 2025, 07:52

ER

Given a series of n consecutive positive integers, where n >

705-805 (Hard) | Number Properties, Sequences

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

enigma123

05 Mar 2026, 11:16

120

7

27,859

by: bumpbot

06 Dec 2025, 01:27

ER

Is x > 1? (1) (x+1)(|x| - 1) > 0 (2) |x| < 5

655-705 (Hard) | Absolute Values, Inequalities

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

1, 2

enigma123

18 Jun 2012, 15:46

521

30

57,574

by: Bunuel

10 Dec 2025, 04:19

ER

After winning 50 percent of the first 30 matches she played

605-655 (Medium) | Percent and Interest Problems, Word Problems

605-655 (Medium) | Percent and Interest Problems, Word Problems hide tags

enigma123

15 Mar 2012, 14:15

48

10

10,796

by: bumpbot

15 Dec 2025, 07:21