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

78,784

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

856

24

188,557

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

487,992

by: bb

29 Aug 2025, 13:27

If b is a positive integer less than 8, is c less than the

705-805 (Hard) | Algebra, Statistics and Sets Problems

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

gmatpapa

19 Apr 2011, 05:26

5

4

3,854

by: varunmaheshwari

19 Apr 2011, 06:48

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Is the triangle in the attached picture isosceles?

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retro

16 Apr 2011, 10:56

7

2,679

by: fluke

16 Apr 2011, 12:19

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Is x > 0 (1) x < x^2 (2) x^2 < x^3

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

rxs0005

24 Jan 2011, 06:42

9

4

5,416

by: subhashghosh

18 Mar 2011, 00:09

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Is x > sqrt(3)? (1) 3^(x) = sqrt(27) (2)x^3 + x^5 + x^7

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spacelandprep

07 Mar 2011, 11:14

2

10

4,794

by: spacelandprep

08 Mar 2011, 16:25

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Does abcd = 1?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

spacelandprep

03 Mar 2011, 21:31

1

4

4,927

by: spacelandprep

03 Mar 2011, 21:54

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Are two triangles congruent? (I) They are both equilateral

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Hussain15

28 Jun 2009, 05:04

5

3

8,207

by: IanStewart

18 Feb 2011, 12:50

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Square R is inscribed in circle C and C is inscribed in

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

banksy

14 Feb 2011, 15:50

7

1

7,589

by: Bunuel

14 Feb 2011, 16:57

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If c and k are distinct positive integers, is c divisible by

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gmatpapa

24 Jan 2011, 01:01

8

2

3,422

by: gmatpapa

24 Jan 2011, 03:38

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What is the value of {M - N} / {M^2 - N^2}? 1. {M^2 - N^2} =

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kylexy

26 Oct 2009, 08:56

14

5,754

by: Fairness

06 Jan 2011, 09:39

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Is (x^2 + y^2) a perfect square? (1) x is even, y is odd (2)

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hallelujah1234

16 Apr 2004, 16:56

1

6

5,327

by: Bunuel

04 Jan 2011, 06:37

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If 8 < k < 8, is k < 2 ?

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rxs0005

21 Dec 2010, 16:33

3

4

3,751

by: tirupatibalaji

24 Dec 2010, 06:56

What percent of x is 3/4?

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

jscott319

11 Dec 2010, 20:03

2

4,964

by: jscott319

11 Dec 2010, 21:18

A right polygon is inscribed in a circle. How many sides

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aalriy

10 Dec 2010, 08:05

1

2

4,998

by: aalriy

10 Dec 2010, 10:58

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Is x an integer? -- x is evenly divisible by 1/2

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fghasemi

03 Dec 2010, 05:40

2

1

6,880

by: Bunuel

03 Dec 2010, 05:58

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What is the volume of a cardboard box with sides a, b, and c ?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

TehJay

22 Nov 2010, 19:55

4

4,301

by: KarishmaB

23 Nov 2010, 09:26

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A biker travels from point A to Point C in a straight line

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Creeper300

07 Nov 2010, 13:53

2

2,842

by: KarishmaB

08 Nov 2010, 10:04

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a^2+b^2=6, a+b=? 1. b-a=2 2. a=-b

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Creeper300

07 Nov 2010, 00:56

1

5

3,637

by: KarishmaB

07 Nov 2010, 07:14

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Joe is older to Lloyd by five years. Ten years ago, John was

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powerka

29 Aug 2009, 00:13

9

5,880

by: chuotnhat1704

30 Oct 2010, 02:55

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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

13,213

by: shrouded1

28 Oct 2010, 03:37

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In the decimal above, each of X and Y represent a single

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hemanthp

20 Oct 2010, 00:06

3

7

4,826

by: IanStewart

27 Oct 2010, 07:16

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If k, m, and p are integers, is k m p odd? (1) k and m are

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amitjash

18 Sep 2010, 21:32

1

14

5,132

by: KapTeacherEli

20 Oct 2010, 20:18

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Is the square root of "a" an integer? (1) the last

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nusmavrik

02 Aug 2010, 04:26

2

6

5,728

by: Bunuel

19 Oct 2010, 09:51

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[1/a^2+1/a^4+1/a^6+...]>[1/a+1/a^3+1/a^5]

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honeyhani

18 Oct 2010, 05:03

3

2

4,053

by: IanStewart

18 Oct 2010, 11:48

Set A and B are 2 sets of numbers. A has a standard

605-655 (Medium) | Statistics and Sets Problems

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

seekmba

23 Sep 2010, 18:39

9

7

5,645

by: Raths

16 Oct 2010, 07:19

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A man and a boy together dig 600 kg of earth in an hour (600

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medanova

05 Oct 2010, 14:37

3

4,488

by: adishail

05 Oct 2010, 15:54

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If xy # 0, is (1/x + 1/y) = 2 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

tatane90

20 Sep 2010, 11:57

7

4

5,394

by: FQ

20 Sep 2010, 18:53

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If n and k are integers greater than 0. What is the remainder when (n

655-705 (Hard) | Number Properties, Out of Scope - Too Hard

655-705 (Hard) | Number Properties, Out of Scope - Too Hard hide tags

shrouded1

17 Sep 2010, 07:38

10

6

7,690

by: shrouded1

17 Sep 2010, 07:43

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Paralleogram ABCD has diagonal AC and BD what is the area of

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rxs0005

10 Sep 2010, 06:47

1

7

4,033

by: TehJay

13 Sep 2010, 07:15

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Between what two numbers is the measure of the third side of

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agnok

09 Sep 2010, 10:27

3

8

4,372

by: Bunuel

11 Sep 2010, 23:50

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Is this a rt triangle

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agnok

20 Jul 2010, 08:26

1

5

3,339

by: trunksli

20 Aug 2010, 21:34

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Find an integer n?

505-555 (Easy) | Absolute Values, Exponents

505-555 (Easy) | Absolute Values, Exponents hide tags

stolyar

22 May 2003, 01:09

2

5,635

by: Bunuel

16 Aug 2010, 09:55

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Is |x| < 1 ? (1) x^4 - 1 > 0 (2) 1/(1 - |x|) > 0

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sag

27 Jul 2010, 07:27

1

3

4,115

by: sag

28 Jul 2010, 00:24

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If y>0 is x>y? 1. 5x-4y=3 2. 4y-5x=3

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agnok

17 Jul 2010, 08:21

3

2

4,079

by: agnok

20 Jul 2010, 08:28

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If 8 < k < 8, is k < 2 ?

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paam0101

12 Jul 2010, 14:33

4

4,324

by: vannbj

15 Jul 2010, 12:24

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What is the value of p^3 + 2p ? (1) p^2 5p + 4 = 0. (2) The

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hardnstrong

11 Jun 2010, 09:35

1

3

7,180

by: hardnstrong

11 Jun 2010, 21:47

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Is n an integer? (1) n^3 + 3n is an integer. (2) n^4 + 4n is

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h2polo

20 Apr 2010, 13:28

5

6

5,540

by: h2polo

20 Apr 2010, 18:25

A fishpole is to be encased in a rectangular box with a square base.

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mosquitojoyride

21 Sep 2009, 16:43

6

4,255

by: jeeteshsingh

05 Jan 2010, 13:46

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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

14,406

by: IanStewart

21 Jun 2009, 10:40

Who is the fastest among the three workers a, b and c? (1) a

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gmatblast

17 Jan 2004, 18:55

1

5

18,685

by: gmatblast

21 Jan 2004, 09:33