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

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

830

29

143,048

by: Pratham_Patil24

26 Sep 2025, 02:12

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

20,711

by: bumpbot

05 Feb 2025, 07:50

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

17,133

by: bumpbot

28 Nov 2025, 02:44

ER

If n is an integer, is 10^n ≤ 0.001 ?

555-605 (Medium) | Exponents, Inequalities

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

MHIKER

22 Jan 2012, 08:17

14

9

9,169

by: bumpbot

03 Mar 2025, 08:54

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

19,398

by: kabirgandhi

02 Sep 2025, 22:00

ER

Is the product of all of the elements in Set S negative?

605-655 (Medium) | Statistics and Sets Problems

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

rdevorse

17 Jan 2012, 17:57

55

13

13,235

by: bumpbot

05 Apr 2026, 11:45

ER

Is |x 6| > 5 ? (1) x is an integer (2) x^2 < 1

555-605 (Medium) | Absolute Values, Inequalities

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

Apex231

16 Jan 2012, 22:50

18

6

10,460

by: Bunuel

08 May 2023, 15:38

ER

If A, B and C are digits between 0 and 9 inclusive, what is

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

SonyGmat

16 Jan 2012, 14:38

39

8

10,658

by: MS26

03 Mar 2026, 06:09

ER

a, b, c, and d are integers; abcd ≠ 0; what is the value of cd?

Sub 505 (Easy) | Algebra, Exponents

Sub 505 (Easy) | Algebra, Exponents hide tags

Runner2

16 Jan 2012, 00:43

12

6

12,291

by: CrackverbalGMAT

19 Dec 2019, 01:15

ER

If the sum of the three different numbers is 54, what is the largest

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

geometric

15 Jan 2012, 23:50

59

9

32,605

by: bumpbot

24 Apr 2025, 01:04

ER

If n is an integer between 10 and 99, is n < 80?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

geometric

15 Jan 2012, 23:49

97

11

44,794

by: Bunuel

23 Nov 2024, 11:30

ER

Ann deposited money into two new accounts, A and B. Account A earns 5

555-605 (Medium) | Percent and Interest Problems

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

geometric

15 Jan 2012, 23:49

80

8

31,272

by: bumpbot

21 Oct 2025, 12:21

ER

A certain diet program calls for eating daily calories from

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Apex231

15 Jan 2012, 19:01

103

8

14,213

by: bumpbot

20 Dec 2025, 11:54

ER

In the sequence shown, a_n=a_(n-1)+k, where 2<=n<=15 and k

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

mushyyy

23 Apr 2024, 00:50

691

19

79,320

by: BinodBhai

07 Jun 2025, 23:28

ER

If b, c, and d are constants and x^2+bx+c=(x+d)^2 for all

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Apex231

14 Jan 2012, 23:31

4

3,740

by: bumpbot

11 Mar 2020, 00:44

ER

Set X has 5 integers: a, b, c, d, and e. If m is the mean

705-805 (Hard) | Statistics and Sets Problems

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

Apex231

14 Jan 2012, 22:40

9

7

7,737

by: bumpbot

24 Oct 2023, 12:39

ER

If x and y are nonzero integers, is 18 a factor of xy^2?

555-605 (Medium) | Multiples and Factors

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

MHIKER

13 Jan 2012, 09:49

9

10

8,542

by: bumpbot

06 Aug 2022, 10:44

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

27,828

by: bumpbot

06 Dec 2025, 01:27

ER

NEW!!! Tough and tricky exponents and roots questions

555-605 (Medium) | Algebra +2 tags

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

1, 2, 3

Bunuel

12 Jan 2012, 03:50

1.2k

46

144,850

by: Bunuel

24 Dec 2025, 12:37

ER

Martha bought an armchair and a coffee table at an action and sold bot

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

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

nonameee

10 Jan 2012, 04:05

280

14

51,059

by: luisdicampo

15 Apr 2026, 07:48

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Is |x-2|+|x+2|<4?

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Poor Quality hide tags

IanStewart

09 Jan 2012, 23:38

2

4

3,273

by: mydreammba

13 Jan 2012, 21:45

ER

d=83,521,y73/441,682,36y. In the expression above

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Poor Quality hide tags

enigma123

09 Jan 2012, 22:05

14

4

12,427

by: omerrauf

17 Jan 2012, 08:44

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

17,111

by: bumpbot

21 Jul 2025, 02:09

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

39,044

by: bumpbot

22 Nov 2025, 08:49

ER

In the figure above, what is the ratio of the area of triangle ABC to

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Poor Quality hide tags

SonyGmat

08 Jan 2012, 04:59

2

9

9,076

by: SonyGmat

09 Jan 2012, 14:45

ER

How many hours did it take Dale to drive from A-town to B-town?

555-605 (Medium) | Distance and Speed Problems

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

shrive555

20 Dec 2011, 07:47

54

8

16,398

by: bumpbot

24 Jun 2025, 22:06

ER

Is z less than 0?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

metallicafan

14 Dec 2011, 09:57

3

7

4,884

by: bumpbot

10 Dec 2022, 09:52

ER

Are positive integers j and k both greater than m?

605-655 (Medium) | Inequalities, Number Properties

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

metallicafan

14 Dec 2011, 09:31

12

8

5,912

by: bumpbot

16 Dec 2018, 09:27

ER

If p and q are consecutive positive integers, is p a multiple of 3 ?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

metallicafan

13 Dec 2011, 09:51

5

6

4,066

by: bumpbot

09 Jul 2020, 19:54

ER

Is x < 0 ? (1) x^3(1 - x^2) < 0 (2) x^2 - 1 < 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

ashiima

10 Dec 2011, 17:52

129

13

18,445

by: bumpbot

02 Jan 2026, 00:57

ER

w, x, y, and z are integers. If w > x > y > z > 0, is y a common divis

805+ (Hard) | Algebra +3 tags

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

ashiima

17 Feb 2022, 01:56

670

17

73,310

by: bumpbot

17 Aug 2025, 01:37

ER

If a#b, what is the value of a+b?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

ashiima

08 May 2015, 09:23

2

3,462

by: bumpbot

13 Jun 2024, 20:39

ER

The cost of delivery for an order of desk chairs was $10.00

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

ruturajp

31 Jul 2014, 02:48

14

4

6,362

by: Bunuel

31 Jul 2014, 02:49

ER

The cost of delivery for an order of desk chairs was $10.00 for the fi

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

ruturajp

06 Dec 2011, 02:20

165

16

49,446

by: bumpbot

19 Aug 2025, 22:48

ER

If x and y are consecutive odd integers such that x < y

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

shrive555

03 Dec 2011, 13:30

12

6

7,956

by: bumpbot

22 Aug 2023, 17:49

ER

Is |2a b| < 7? (1) 2a b < 7 (2) a = b + 3

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

Postal

02 Dec 2011, 06:22

30

9

8,242

by: Bunuel

29 Dec 2023, 04:58

ER

w, x, y, and z are integers. If z > y > x > w, is |w| > x^2

805+ (Hard) | Absolute Values, Inequalities

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

1, 2

enigma123

01 Dec 2011, 01:52

302

29

45,958

by: bumpbot

22 Jan 2025, 12:51

ER

Lines m and n lie in the xy-plane and intersect at the point (-2; 4).

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

dreambeliever

30 Nov 2011, 21:37

93

12

19,286

by: bumpbot

30 Nov 2024, 04:01

ER

Is N=W ?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Poma777

30 Nov 2011, 19:54

15

6

4,755

by: BloomingLotus

12 Sep 2017, 09:12

ER

If a certain grove consists of 36 pecan trees, what was the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

ashiima

08 May 2015, 08:44

40

5

11,943

by: bumpbot

19 Jul 2025, 12:37

ER

If n is an integer, is n/15 an integer?

505-555 (Easy) | Multiples and Factors, Number Properties

505-555 (Easy) | Multiples and Factors, Number Properties hide tags

ashiima

29 Nov 2011, 20:02

71

11

17,606

by: bumpbot

16 Nov 2024, 03:20

ER

Is the positive square root of x an integer?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

metallicafan

28 Nov 2011, 10:31

4

3

5,045

by: bumpbot

09 Apr 2022, 02:23

ER

In the rectangular coordinate system, are the points (p,q) and (r,s)

Sub 505 (Easy) | Absolute Values, Coordinate Plane

Sub 505 (Easy) | Absolute Values, Coordinate Plane hide tags

dvinoth86

27 Nov 2011, 18:54

45

8

9,392

by: bumpbot

25 Dec 2024, 14:34

ER

If a and b are distinct positive integers, what is the units digit of

705-805 (Hard) | Fractions and Ratios, Multiples and Factors

705-805 (Hard) | Fractions and Ratios, Multiples and Factors hide tags

Postal

08 May 2015, 08:58

59

14

10,388

by: bumpbot

19 Apr 2024, 00:45

ER

What is the minimal value of function f(x)?

505-555 (Easy) | Algebra +2 tags

505-555 (Easy) | Algebra, Functions and Custom Characters, Min-Max Problems hide tags

manalq8

13 Jul 2014, 12:49

44

7

14,234

by: bumpbot

17 Nov 2022, 09:49

ER

Is the cost of an Organ more than the cost of a Flute ?

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

cleetus

27 Jan 2014, 06:28

15

12

4,510

by: bumpbot

12 Dec 2025, 03:45

ER

If sets X and Y have an equal number of elements, does set X have a

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Poor Quality hide tags

enigma123

23 Nov 2011, 13:58

26

7

19,533

by: alphabeta1234

01 Aug 2012, 18:44

ER

What is the value of y^3 - t^3?

555-605 (Medium) | Algebra, Exponents

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

metallicafan

23 Nov 2011, 09:57

14

7

6,029

by: bumpbot

10 May 2021, 15:16

ER

The GMAT is scored on a scale of 200 to 800 in 10 point incr

805+ (Hard) | Statistics and Sets Problems, Word Problems

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

1, 2

enigma123

15 Apr 2026, 11:36

397

22

35,398

by: bumpbot

15 Apr 2026, 18:52

ER

At a business school conference with 100 attendees, are ther

605-655 (Medium) | Statistics and Sets Problems, Word Problems

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

enigma123

27 Dec 2024, 16:32

186

15

33,399

by: bumpbot

27 Jan 2026, 03:29