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

179

15

79,135

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

188,766

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

488,356

by: bb

29 Aug 2025, 13:27

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If x is an integer, is (9x^2 + 10)^2/5 an integer?

705-805 (Hard) | Number Properties

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Syumbel

20 Nov 2023, 14:21

1

3

1,431

by: Archit3110

22 Nov 2023, 04:09

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If x is an integer, is (x + p)(x + q) an even integer?

555-605 (Medium) | Number Properties

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Bunuel

15 Dec 2014, 08:54

9

6

7,879

by: bumpbot

02 Jul 2024, 13:17

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If x is an integer, is (x + p)(x + q) an even integer? (1) q is an eve

555-605 (Medium) | Number Properties

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Bunuel

17 Nov 2020, 01:15

9

8

2,491

by: bumpbot

23 Sep 2023, 10:24

ER

If x is an integer, is (x^2 + y^2)^(1/2) an integer?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

14 May 2017, 11:31

3

9

2,595

by: mohshu

17 May 2017, 09:53

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If x is an integer, is (x^2+1)(x+5) an even number?

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

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1, 2

mybudgie

30 Jan 2016, 02:36

240

21

63,836

by: Krunaal

10 Jan 2025, 08:08

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If x is an integer, is |2x - 5| + |3x - 10| = 5 - x ?

805+ (Hard) | Absolute Values +2 tags

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Bunuel

05 Oct 2019, 02:02

20

8

2,906

by: bumpbot

29 Oct 2023, 13:56

ER

If x is an integer, is |x| > 1?

705-805 (Hard) | Absolute Values, Inequalities

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

ssgomz

06 Aug 2010, 15:53

32

2

10,465

by: bumpbot

27 Sep 2023, 01:17

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If x is an integer, is √(3x - y) = √(2x – 2y)? (1) x – y = 2 (2) x +

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

duahsolo

21 Feb 2017, 04:59

10

8

3,212

by: bumpbot

05 Aug 2023, 01:32

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If x is an integer, is 10^x ≤ 1/1000 ?

605-655 (Medium) | Exponents, Inequalities

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Bunuel

25 Sep 2018, 05:31

4

3

2,179

by: bumpbot

02 Mar 2021, 11:52

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If x is an integer, is 15 a factor of x?

555-605 (Medium) | Multiples and Factors

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Bunuel

27 Aug 2015, 01:51

14

8

5,217

by: bumpbot

26 Jan 2023, 07:34

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If x is an integer, is 2^x a factor of 12!?

605-655 (Medium) | Exponents +2 tags

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Bunuel

02 May 2019, 01:30

10

9

5,846

by: bumpbot

29 Oct 2023, 11:23

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If x is an integer, is 3^x a factor of 15! ?

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

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Bunuel

26 Aug 2015, 00:42

22

13

4,747

by: bumpbot

28 Nov 2023, 03:47

ER

If x is an integer, is 3^x less than 500?

705-805 (Hard) | Exponents, Inequalities

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himanshuhpr

29 Oct 2012, 04:18

56

10

15,311

by: bumpbot

03 Oct 2024, 07:05

ER

If x is an integer, is 3x + 7 even?

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

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

Bunuel

15 Nov 2017, 09:44

1

5

4,049

by: MathRevolution

16 Nov 2017, 23:18

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If x is an integer, is 3x odd?

555-605 (Medium) | Number Properties

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Bunuel

12 Apr 2016, 02:24

1

5

2,392

by: MathRevolution

16 Apr 2016, 02:42

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If x is an integer, is 4^x < 3^(x+1)?

705-805 (Hard) | Absolute Values, Inequalities

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

Bunuel

07 Oct 2015, 08:40

59

11

11,693

by: kusum_ad

26 Sep 2024, 00:48

ER

If x is an integer, is 4^x + 4^(-x) = y ?

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

Bunuel

04 Aug 2021, 06:00

7

3

2,293

by: bumpbot

18 Apr 2023, 05:06

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If x is an integer, is 6 a factor of x^3?

505-555 (Easy) | Multiples and Factors

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

Bunuel

23 Nov 2016, 03:14

6

7

2,263

by: Bunuel

12 Dec 2016, 07:05

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If x is an integer, is 72/x an integer?

555-605 (Medium) | Multiples and Factors

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

Bunuel

21 Aug 2016, 04:10

4

3

5,060

by: bumpbot

13 Apr 2024, 03:52

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If x is an integer, is 9^x + 9^-^x = b ? (1) 3^x + 3^-^x = b

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TehJay

17 Sep 2010, 17:05

3

6

3,445

by: Bunuel

15 Aug 2017, 05:21

ER

If x is an integer, is 9^x + 9^(-x) = b ? (1) 3^x + 3^(-x) = (b + 2)

555-605 (Medium) | Algebra, Exponents

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

1, 2

Bunuel

01 Oct 2012, 05:20

243

27

55,155

by: totaltestprepNick

01 Mar 2026, 14:10

ER

If x is an integer, is n prime? (1) x! = n (2) 0 x 2

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

23 Sep 2022, 06:12

2

1,229

by: afifizzatullah

25 Sep 2022, 22:51

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If x is an integer, is sqrt[(x^2)-(y^2)] an integer?

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Xin Cho

30 Jul 2019, 12:12

2

3

890

by: Xin Cho

31 Jul 2019, 14:55

If x is an integer, is the mean of the five numbers shown greater than

805+ (Hard) | Statistics and Sets Problems

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TBT

15 Feb 2023, 22:00

1

1,776

by: gmatophobia

15 Feb 2023, 23:32

ER

If x is an integer, is the median of 5 numbers shown greater than the

655-705 (Hard) | Statistics and Sets Problems

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

getzgetzu

28 Apr 2006, 00:06

402

16

82,562

by: bumpbot

10 Dec 2025, 01:49

ER

If x is an integer, is x > 0?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Vijayeta

13 Aug 2014, 04:07

42

8

9,479

by: bumpbot

15 Jun 2025, 07:15

ER

If x is an integer, is x < 0?

655-705 (Hard) | Absolute Values, Inequalities

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

chetan2u

11 Apr 2020, 08:23

5

2

1,418

by: ArunSharma12

11 Apr 2020, 09:07

ER

If x is an integer, is x < 10? (1) 7x < 77 (2) 190 − 20x < 10

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

28 Jun 2020, 13:29

1

8

2,950

by: bM22

30 Jun 2020, 09:52

ER

If x is an integer, is x + 1 a factor of 12?

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

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

Bunuel

01 Jul 2016, 04:14

7

3

2,797

by: bumpbot

08 Jul 2022, 08:19

ER

If x is an integer, is x + 2 even? (1) x + 3 is an even integer. (2)

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

29 Dec 2021, 02:30

1

1,577

by: BrentGMATPrepNow

29 Dec 2021, 07:29

ER

If x is an integer, is x ≤ 11? (1) 7x < 77 (2) 190 - 20x <10

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

GloryBoy92

16 Jun 2019, 02:48

3

8

1,623

by: Debashis Roy

17 Jun 2019, 09:03

ER

If x is an integer, is x an odd integer?

605-655 (Medium) | Multiples and Factors

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Bunuel

25 Dec 2016, 02:42

1

4

2,390

by: vienbuuchau

25 Dec 2016, 08:35

ER

If x is an integer, is x an odd number?

Sub 505 (Easy) | Number Properties

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Bunuel

07 Feb 2018, 05:51

2

3,275

by: Mo2men

08 Feb 2018, 18:59

ER

If x is an integer, is x between 27 and 54?

605-655 (Medium) | Remainders

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Bunuel

13 Nov 2019, 00:54

16

14

4,334

by: bumpbot

18 Aug 2025, 22:05

ER

If x is an integer, is x divisible by 15?

505-555 (Easy) | Multiples and Factors

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Bunuel

27 Apr 2022, 04:00

2

1,332

by: genericUser

22 May 2022, 10:55

ER

If x is an integer, is x even?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Pla~Yang

27 May 2013, 05:10

13

4

8,983

by: bumpbot

04 Jun 2025, 13:04

ER

If x is an integer, is x even?

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

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Bunuel

24 Nov 2023, 02:30

2

1,553

by: bv8562

14 Dec 2023, 06:19

ER

If x is an integer, is x even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

27 Jul 2020, 01:39

21

19

5,093

by: bumpbot

04 Jul 2021, 11:17

ER

If x is an integer, is x even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

RichaKhanna

07 Jul 2015, 00:46

1

5

4,343

by: bumpbot

02 Oct 2020, 03:05

ER

If x is an integer, is x even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

valerjo79

20 Nov 2012, 00:15

7

6

7,140

by: bumpbot

08 Jul 2019, 00:46

ER

If x is an integer, is x even? (1) x^2 - y^2 = 0 (2) x^2 + y^2 = 98

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

31 Jan 2023, 02:30

1

976

by: SaquibHGMATWhiz

31 Jan 2023, 22:45

ER

If x is an integer, is x odd?

605-655 (Medium) | Number Properties

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Bunuel

20 Dec 2015, 06:02

12

6

6,942

by: bumpbot

09 Mar 2024, 10:16

ER

If x is an integer, is x odd? (1) x + (x + 1) + (x + 2) is odd (2) x^2

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

19 Jun 2018, 07:00

8

6

4,456

by: Bunuel

14 Jun 2022, 01:18

ER

If x is an integer, is x^3 divisible by 49?

555-605 (Medium) | Multiples and Factors

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Bunuel

05 Dec 2017, 21:55

1

4

1,747

by: lovenish

06 Dec 2017, 23:06

ER

If x is an integer, is x^3 divisible by 7

Sub 505 (Easy) | Multiples and Factors

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abhinav008

05 Jul 2015, 08:24

5

6

3,616

by: bumpbot

08 Jul 2022, 06:20

ER

If x is an integer, is x^3 divisible by 9?

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

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gmatgambler

13 Jan 2014, 01:03

24

7

8,572

by: bumpbot

09 Dec 2022, 22:00

ER

If x is an integer, is x^3 even?

505-555 (Easy) | Number Properties

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Bunuel

01 Apr 2016, 03:25

3

6

7,062

by: bumpbot

07 Mar 2021, 16:54

ER

If x is an integer, is x/2 an even integer ?

505-555 (Easy) | Number Properties

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hb

01 Jan 2016, 06:54

10

2

12,930

by: hb

21 Jul 2013, 07:26

ER

If x is an integer, is x/y an integer?

555-605 (Medium) | Number Properties

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DeeptiM

14 Aug 2011, 13:15

41

6

10,263

by: bumpbot

29 Apr 2024, 06:25

ER

If x is an integer, is x|x|<2^x ?

Sub 505 (Easy) | Absolute Values +2 tags

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1, 2

cucrose

17 Jan 2007, 16:27

140

26

57,171

by: poojaarora1818

24 Feb 2026, 11:32