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

178

15

78,885

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,619

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

488,091

by: bb

29 Aug 2025, 13:27

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Is x an integer? (1) x/6 is an odd integer. (2) x^2 is a multiple

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

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

Bunuel

10 Jan 2023, 02:30

7

1

1,284

by: gmatophobia

10 Jan 2023, 02:52

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Is x an integer? (1) x^3 is an integer (2) 3x is an integer

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

amanvermagmat

15 Feb 2018, 03:45

15

5

6,854

by: bumpbot

06 Sep 2023, 00:37

ER

Is x an integer? (1) x^2 is an integer (2) 2*x is an integer

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

QuantMadeEasy

12 Feb 2020, 00:14

5

2

2,017

by: bumpbot

30 Jun 2024, 00:52

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Is x an integer? (1) x > 0 (2) 3^2 + 4^2 = x^2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

11 May 2022, 03:00

2

1

1,609

by: BrentGMATPrepNow

14 May 2022, 07:35

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Is x an integer? (1) 9x^2 is an integer. (2) 9x^(1/2) is an integer.

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

19 Sep 2022, 04:50

16

2

2,219

by: bumpbot

18 Jan 2025, 09:58

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

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Poor Quality hide tags

fghasemi

03 Dec 2010, 05:40

2

1

6,882

by: Bunuel

03 Dec 2010, 05:58

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Is x an integer? (1) x/2 is an integer (2) 2x is an integer

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

boomtangboy

21 Sep 2019, 20:13

20

4

28,922

by: bumpbot

17 Oct 2023, 11:59

ER

Is x an integer? (1) x^3 = 8 (2) x = 4^(1/2)

Sub 505 (Easy) | Algebra, Number Properties

Sub 505 (Easy) | Algebra, Number Properties hide tags

Bunuel

26 Apr 2019, 02:16

26

17

19,421

by: bumpbot

03 Sep 2025, 04:14

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Is x an integer? (1) x^2 is an integer. (2) x/2 is not an integer.

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

gmatt1476

21 Sep 2019, 20:16

73

7

17,983

by: bumpbot

20 Jan 2026, 12:08

ER

Is x an integer? (1) A triangle whose sides are of length x - 1, 2x –

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

Gmatprep998

23 May 2019, 06:01

16

3

2,887

by: bumpbot

11 Jul 2023, 10:18

ER

Is x an integer? (1) The average (arithmetic mean) of x – 1 and x +

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

09 Jan 2018, 23:32

7

1,813

by: amanvermagmat

10 Jan 2018, 22:43

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Is x an integer?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

camiu

25 Jun 2015, 01:43

22

11

7,558

by: bumpbot

13 Oct 2025, 23:41

ER

Is x an integer?

555-605 (Medium) | Inequalities, Number Properties

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

chetan2u

17 Aug 2018, 23:47

4

6

3,512

by: bumpbot

14 Oct 2023, 05:39

ER

Is x an integer?

705-805 (Hard) | Algebra, Number Properties

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

chetan2u

14 Jun 2018, 04:49

15

7

2,569

by: bumpbot

29 May 2023, 05:41

ER

Is x an integer?

605-655 (Medium) | Algebra, Exponents

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

mehulsayani

08 Sep 2012, 06:01

29

4

5,687

by: bumpbot

23 Jul 2021, 07:47

ER

Is x an integer?

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

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

chetan2u

28 Jan 2017, 05:19

1

4

3,561

by: TheUltimateWinner

28 Jan 2017, 09:58

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Is X an integer if AB > 0? (1) X = 2A - 5B (2) A = B

555-605 (Medium) | Algebra, Inequalities

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

Bunuel

15 Jan 2020, 02:31

1

1,335

by: GMATinsight

15 Jan 2020, 02:50

ER

Is x an integer greater than 1?

805+ (Hard) | Inequalities, Number Properties

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

1, 2

duahsolo

30 Jan 2017, 09:20

18

22

6,759

by: bumpbot

16 Jun 2024, 04:00

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Is x an integer ? (1) x/3 is an integer (2) 3x is an integer

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

06 Dec 2016, 07:07

2

3

6,547

by: bumpbot

15 Nov 2022, 02:08

ER

Is x an integer ? (1) 2x/3 is an integer (2) x - 4 is an integer

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

23 May 2022, 11:44

6

3

3,552

by: bumpbot

13 Feb 2024, 03:04

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Is x an integer ? (1) |x - 3| < 1 (2) x is not a prime number

555-605 (Medium) | Absolute Values, Number Properties

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

Bunuel

24 Nov 2022, 02:30

3

2

1,080

by: SaquibHGMATWhiz

24 Nov 2022, 04:56

ER

Is x an integer ? (1) 2x is even (2) 3x is odd

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

04 May 2021, 02:09

1

3,708

by: Showmeyaa

04 May 2021, 02:53

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Is x an integer ? (1) 2x + 1 is an integer (2) 5x – 1 is an integer

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

28 Aug 2017, 04:06

10

8

3,441

by: MathRevolution

28 Sep 2020, 02:58

ER

Is x an integer ?

605-655 (Medium) | Algebra, Number Properties

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

Carcass

23 Jan 2015, 06:48

9

4

3,948

by: bumpbot

17 Feb 2022, 04:23

ER

Is x an integer ?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

pllgl

24 Nov 2016, 02:46

4

2,519

by: Bunuel

24 Nov 2016, 02:50

ER

Is x an even number? (1) x^3 + x^2 = 0 (2) x^2 + |x| = 0

605-655 (Medium) | Absolute Values +2 tags

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

Bunuel

04 Dec 2018, 03:09

36

12

7,111

by: bumpbot

12 Jul 2025, 12:25

ER

Is x an even integer? Assume n and p are integers.

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

24 Oct 2017, 23:52

3

3,021

by: Plunkster82

31 Oct 2017, 12:23

ER

Is x an even integer? (1) x^2 is divisible by 4 (2) x^4 is divisible

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

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

Bunuel

09 Feb 2018, 00:43

51

9

6,893

by: SatvikVedala

01 Sep 2024, 07:46

ER

Is x an even integer? (1) x is the square of an integer. (2) x is the

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

09 Dec 2014, 15:58

73

9

19,568

by: bumpbot

13 Nov 2025, 20:43

ER

Is x an even integer? (1) 2y + x is an even number. (2) x^2 + x is an

705-805 (Hard) | Algebra, Number Properties

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

chetan2u

15 Jun 2018, 21:07

3

4

2,185

by: SonalSinha803

15 Jun 2018, 22:19

ER

Is x an even integer?

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

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

Bunuel

28 Apr 2015, 05:15

36

10

6,626

by: hiteshlimbasiya

05 Jun 2025, 09:27

ER

Is x an even integer?

705-805 (Hard) | Multiples and Factors

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

Bunuel

15 Jun 2022, 08:30

11

8

2,519

by: bumpbot

27 Nov 2023, 11:09

Is x an even integer ? (1) x is the sum of all positive integers rang

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

AnisMURR

08 Oct 2020, 09:39

5

1,945

by: bumpbot

27 Nov 2023, 11:10

ER

Is X an even integer ?

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AnisMURR

12 Oct 2020, 10:58

4

5

1,206

by: VoltAmpere

15 Oct 2020, 17:49

ER

Is x a prime number? (2) y^2 = x (1) 2x/x^2 = 1

655-705 (Hard) | Algebra, Number Properties

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

Bunuel

16 Feb 2015, 06:54

39

13

7,816

by: samriddhi1234

26 Jul 2025, 07:48

ER

Is x a prime number? (1) x is an even number. (2) x cannot be divided

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

fozzzy

20 Dec 2012, 01:16

12

10

14,111

by: bumpbot

15 Sep 2022, 23:07

Is X a prime number? (1) X is a factor of 144. (2) X > 2 and X is a

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

amanvermagmat

08 Jan 2019, 22:20

2

1,182

by: KanishkM

08 Jan 2019, 22:43

ER

Is x a prime number?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

16 Feb 2015, 06:47

5

8

8,074

by: bumpbot

26 Dec 2025, 03:28

ER

Is x a prime number, given that x is a positive integer?

605-655 (Medium) | Exponents, Inequalities

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

Bunuel

17 Jan 2020, 02:44

6

4

6,835

by: Tonkotsu

26 Dec 2020, 18:38

ER

Is x a positive number? (1) x + 6 > 2 (2) x^2 > 25

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

06 May 2019, 03:03

3

7

3,202

by: merajul

22 Nov 2019, 10:13

ER

Is x a positive number? (1) (x – 2)^2 > 2 (2) 2^x > 3^x

555-605 (Medium) | Exponents, Inequalities

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

Bunuel

05 Sep 2017, 01:30

3

7

3,443

by: bumpbot

17 Feb 2024, 02:25

ER

Is x a positive number?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

CAMANISHPARMAR

01 Jul 2019, 23:00

1

2,193

by: IanStewart

02 Jul 2019, 05:49

ER

Is x a positive number?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

01 Oct 2015, 01:40

3

5

7,617

by: Bunuel

06 Oct 2015, 08:19

ER

Is x a positive integer? (1) The reciprocal of x is greater than x

705-805 (Hard) | Absolute Values +2 tags

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

Bunuel

25 Dec 2016, 02:41

20

10

4,777

by: bumpbot

02 Jun 2023, 21:23

ER

Is x a positive integer? (1) x^2 - 1 = 0 (2) x < 1

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

kri1311

21 Mar 2021, 08:13

3

5

1,248

by: bumpbot

25 Dec 2024, 04:34

ER

Is x a positive integer? (1) x > 0 (2) x^2 + 16 = 25

555-605 (Medium) | Algebra, Number Properties

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

Skn1608

07 Jan 2019, 02:00

10

5

2,288

by: aggvipul

07 Jan 2019, 11:45

ER

Is x a positive integer?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

chetan2u

29 Jun 2020, 23:32

3

2

2,222

by: RaghavKhanna

30 Jun 2020, 00:09

ER

Is X a number greater than zero?

Sub 505 (Easy) | Algebra, Number Properties

Sub 505 (Easy) | Algebra, Number Properties hide tags

Bunuel

30 Jul 2019, 23:20

3

2,492

by: TheNightKing

30 Dec 2019, 20:28

ER

Is x a negative number? (1) x^2 is a positive number (2) x^3 is non-po

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

davidbeckham

01 May 2020, 16:14

11

5

3,940

by: bumpbot

23 Sep 2025, 17:50

ER

Is x a negative number? (1) 9x > 10x (2) x + 3 is positive

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

06 Aug 2012, 03:11

20

16

23,392

by: totaltestprepNick

28 Feb 2026, 09:18