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

78,648

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

188,475

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

487,862

by: bb

29 Aug 2025, 13:27

ER

If a certain positive integer is divided by 9, the remainder

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

fozzzy

19 Jan 2013, 05:21

83

16

23,795

by: bumpbot

24 Apr 2025, 21:41

ER

Is r*s a multiple of 25? (r and s are positive integers)

605-655 (Medium) | Multiples and Factors

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

fattty

13 Jan 2016, 23:34

85

10

10,653

by: bumpbot

24 Apr 2025, 05:09

ER

If each of the two digits X and Y is distinct

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

ConnectTheDots

28 Aug 2012, 06:56

36

9

9,349

by: bumpbot

23 Apr 2025, 07:12

ER

What is the value of x?

605-655 (Medium) | Algebra, Number Properties

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

Bunuel

27 Jan 2015, 07:35

55

9

7,784

by: bumpbot

22 Apr 2025, 11:31

ER

In how many ways can a coach select a 4-person university team from a

505-555 (Easy) | Combinations +2 tags

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

1, 2

pate13

24 Aug 2015, 17:49

64

22

15,868

by: bumpbot

18 Apr 2025, 05:16

ER

If y is a negative number greater than -8, is x greater than

655-705 (Hard) | Absolute Values, Coordinate Plane

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

shekar123

01 Jun 2010, 20:39

66

17

16,214

by: bumpbot

16 Apr 2025, 05:55

ER

An alloy, Alloy K, is made by mixing certain quantities of iron and

705-805 (Hard) | Mixture Problems

705-805 (Hard) | Mixture Problems hide tags

guddo

30 May 2024, 12:21

110

13

10,557

by: elslyknight

15 Apr 2025, 06:22

ER

On the number line, the distance between x and y is greater than the

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

jj97cornell

03 Feb 2012, 14:32

446

19

93,490

by: bumpbot

15 Apr 2025, 03:24

ER

Whenever martin has a restaurant bill with an amount between

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

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

GMATD11

12 Feb 2011, 13:48

196

19

43,872

by: bumpbot

13 Apr 2025, 07:57

ER

If k = (n + 2)(n - 2), where n is an integer value greater

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

msbandi4321

06 Jun 2021, 14:20

329

15

73,890

by: bumpbot

07 Apr 2025, 09:46

ER

P and Q are prime numbers less than 70. What is the units digit of P*Q

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

1, 2

EgmatQuantExpert

13 Aug 2018, 03:11

188

25

29,398

by: bumpbot

02 Apr 2025, 13:18

ER

If a is non-negative, is x^2 + y^2 > 4a ?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

Marcab

10 May 2013, 09:26

87

14

18,108

by: Bunuel

02 Apr 2025, 00:05

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If a, b and n are positive integers such that n = 3a – b3

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

EgmatQuantExpert

13 Aug 2018, 03:10

364

12

40,302

by: bumpbot

31 Mar 2025, 05:05

ER

If Father's age is 1 less than twice the son's age, what is

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

docabuzar

31 Jan 2012, 13:24

107

14

15,391

by: Dereno

30 Mar 2025, 21:54

ER

What is the value of the tenths digit of number x?

555-605 (Medium) | Fractions and Ratios

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

1, 2

nikhilbajaj

24 Dec 2009, 10:33

79

20

27,431

by: bumpbot

30 Mar 2025, 00:19

ER

If vertices of a triangle have coordinates (-2,2), (3,2) and

805+ (Hard) | Absolute Values, Coordinate Plane

805+ (Hard) | Absolute Values, Coordinate Plane hide tags

noboru

10 Aug 2009, 02:25

236

12

47,298

by: bumpbot

28 Mar 2025, 14:05

ER

If a number N is decreased by p percent and then the resulting value

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

santorasantu

01 Oct 2015, 06:32

76

18

18,171

by: bumpbot

26 Mar 2025, 22:24

ER

If x, y and z are positive integers such that x^4*y^3 = z^2

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

EgmatQuantExpert

22 Feb 2024, 04:56

391

12

39,485

by: bumpbot

26 Mar 2025, 06:29

ER

What is the value of the positive integer n ?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

03 Jan 2014, 06:17

39

10

19,883

by: bumpbot

25 Mar 2025, 08:59

ER

Set S consists of n consecutive integers, where n > 1. What is the

805+ (Hard) | Number Properties, Statistics and Sets Problems

805+ (Hard) | Number Properties, Statistics and Sets Problems hide tags

Bunuel

04 Jun 2015, 04:22

34

10

9,255

by: bumpbot

24 Mar 2025, 23:37

ER

In the standard (x,y) coordinate plane, what is the slope of the line

805+ (Hard) | Absolute Values, Coordinate Plane

805+ (Hard) | Absolute Values, Coordinate Plane hide tags

gmatt1476

21 Sep 2019, 18:19

315

16

29,379

by: hr1212

22 Mar 2025, 12:39

ER

If p1 and p2 are the populations and r1 and r2 are the numbers of repr

505-555 (Easy) | Fractions and Ratios, Word Problems

505-555 (Easy) | Fractions and Ratios, Word Problems hide tags

Bunuel

18 Sep 2012, 03:26

112

17

31,995

by: Bunuel

21 Mar 2025, 08:29

ER

Jack picked 76 apples. Of these, he sold 4y apples to Juanita and 3t a

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

26 Apr 2019, 02:34

37

12

22,024

by: bumpbot

20 Mar 2025, 07:26

ER

What is the sum of the digits of the positive integer n

605-655 (Medium) | Arithmetic, Exponents

605-655 (Medium) | Arithmetic, Exponents hide tags

samark

04 Nov 2010, 08:24

67

19

17,443

by: AVMachine

20 Mar 2025, 05:27

ER

In the infinite sequence S, each term Sn after S2 is equal to the sum

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

MariaVorop

19 Mar 2020, 08:59

17

11

8,127

by: ManifestDreamMBA

18 Mar 2025, 11:14

ER

In the figure above, PQRS is a square and AB = AC. Is the area of tria

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

AdmitJA

28 Jan 2015, 22:16

136

17

25,704

by: bumpbot

12 Mar 2025, 23:27

ER

S is a set of positive integers. The average of the terms in

705-805 (Hard) | Statistics and Sets Problems

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

1, 2

rohitgarg

07 Nov 2013, 11:43

79

20

22,116

by: bumpbot

05 Mar 2025, 22:34

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

7,911

by: bumpbot

03 Mar 2025, 08:33

ER

Is the average (arithmetic mean) of 5 different positive integers at

555-605 (Medium) | Statistics and Sets Problems

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

piyushksharma

07 May 2012, 08:55

153

16

63,377

by: bumpbot

02 Mar 2025, 08:34

ER

If x and y are nonzero integers, is x^y < y^x ?

605-655 (Medium) | Algebra +2 tags

605-655 (Medium) | Algebra, Exponents, Inequalities hide tags

Bunuel

27 Oct 2005, 16:28

231

11

34,282

by: bumpbot

25 Feb 2025, 13:36

ER

What is the value of t?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

1, 2

Bunuel

16 Jun 2016, 03:26

33

20

25,884

by: bumpbot

25 Feb 2025, 03:56

ER

At a certain clothing store, customers who buy 2 shirts pay the regula

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

GMATinsight

22 Apr 2020, 00:53

340

19

51,599

by: Udniez

22 Feb 2025, 13:02

ER

The average (arithmetic mean) of 5 distinct, single digit integers is

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

qweert

24 Jul 2017, 06:30

144

12

34,740

by: bumpbot

20 Feb 2025, 09:16

ER

If P, Q, R, and S are positive integers, and P/Q = R/S, is R

655-705 (Hard) | Multiples and Factors

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

rxs0005

01 Feb 2011, 11:01

53

14

21,042

by: bumpbot

17 Feb 2025, 05:18

ER

How many basic units of currency X are equivalent to 250 basi

Sub 505 (Easy) | Arithmetic

Sub 505 (Easy) | Arithmetic hide tags

Bunuel

21 Jun 2018, 09:39

29

13

27,476

by: bumpbot

14 Feb 2025, 21:08

ER

If a and b are both positive integers, is b^(a+1) - ba^b odd?

805+ (Hard) | Algebra, Number Properties

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

Bunuel

05 May 2011, 00:56

182

15

42,318

by: bumpbot

07 Feb 2025, 04:15

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

20,707

by: bumpbot

05 Feb 2025, 07:50

ER

If b and c are constants for which the quadratic equation x^2+bx+c=0

555-605 (Medium) | Algebra, Roots

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

broilerc

05 May 2016, 08:41

223

12

46,964

by: bumpbot

03 Feb 2025, 05:46

ER

When a die that has one of six consecutive integers on each

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

ruhi

29 Apr 2019, 07:25

52

16

10,180

by: bumpbot

28 Jan 2025, 16:57

ER

An artist creates mosaics using stone tiles provided by his clients.

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

22 Sep 2021, 02:00

18

6

3,843

by: hr1212

26 Jan 2025, 04:29

ER

The function f is defined for all positive integers n > 4 as

805+ (Hard) | Functions and Custom Characters, Number Properties

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

Rock750

15 Jan 2014, 12:00

171

14

23,116

by: bumpbot

24 Jan 2025, 13:08

ER

If integers x, y and z are greater than 1 what is the value

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

arjtryarjtry

04 Aug 2008, 11:05

231

18

60,473

by: bumpbot

23 Jan 2025, 19:07

ER

If x^2 = y + 5 , y = z - 2 and z = 2x , is x^3 + y^2 + z

805+ (Hard) | Algebra, Multiples and Factors

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

study

13 Jun 2010, 09:11

146

15

36,330

by: bumpbot

23 Jan 2025, 12:32

ER

Is x between 0 and 1?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

bianalyst

05 Jun 2017, 14:17

17

11

8,317

by: bumpbot

23 Jan 2025, 10:47

ER

If x and y are positive integers, is xy a multiple of 8?

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

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

Orange08

21 Oct 2019, 01:18

180

14

32,554

by: bumpbot

22 Jan 2025, 02:34

ER

Is the value of x equal to the value of y?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

pikachu

24 May 2013, 17:32

41

11

9,840

by: bumpbot

21 Jan 2025, 22:59

ER

If x is different from 0, is |x| < 1 ?

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

Carcass

29 Jan 2012, 08:29

114

14

18,385

by: bumpbot

14 Jan 2025, 10:20

ER

In a casino, a gambler stacks a certain number of chips in piles, with

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

ykaiim

18 Jun 2010, 04:13

10

11

5,531

by: bumpbot

13 Jan 2025, 08:09

ER

If x and n are integers is the sum of x and n less than zero

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

dvinoth86

19 Feb 2012, 05:29

34

15

21,069

by: bumpbot

12 Jan 2025, 09:49

ER

What is the value of x^2 - y^2?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

bulletpoint

20 Oct 2013, 06:32

258

11

65,559

by: bumpbot

02 Jan 2025, 10:47