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

79,077

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

188,730

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

488,295

by: bb

29 Aug 2025, 13:27

ER

Is y > 0? (1) x^2 - y^2 = 0 (2) x^2 + y^2 = 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

02 Jun 2021, 04:30

3

2

1,699

by: jaindhruvaditya

12 Sep 2023, 01:31

ER

Is y > 0? (1) x^2 y^2 = 0 (2) x^2 + y^2 = 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

07 Feb 2023, 02:30

2

1,464

by: Sristishaw

12 Feb 2023, 07:55

ER

Is y > 3 ? (1) y^2 > 4 (2) y^2 > 16

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

09 Jun 2021, 02:30

1

3

1,298

by: Showmeyaa

09 Jun 2021, 06:40

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Is y > 4.3? (1) y rounded to the nearest hundredth is 4.31. (2) y ro

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

Bunuel

11 Feb 2022, 02:30

13

5

2,178

by: bumpbot

26 Jun 2025, 11:47

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Is y > x ? (1) x^3 > x^2 (2) y^x < 1

555-605 (Medium) | Exponents, Inequalities

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

Bunuel

11 Feb 2023, 02:54

1

2

1,199

by: gmatophobia

12 Feb 2023, 03:21

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Is y > x ? (1) yz > y (2) x > zy

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

14 Sep 2023, 01:30

3

1

1,071

by: chetan2u

14 Sep 2023, 05:52

ER

Is y > z? (1) -y > 2z (2) z > -2y

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

09 Apr 2018, 04:48

8

6

2,959

by: bumpbot

31 May 2023, 04:42

Is y < (x + z)/2 ? (1) y - x < z - y (2) z - y > (z - x)/2

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

nick_sun

20 Oct 2019, 03:21

17

6

16,815

by: totaltestprepNick

28 Feb 2026, 09:20

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Is y < 0 (1) x + y = 1 (2) x^2 < y^2

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

10 Jun 2018, 04:42

6

3

1,665

by: bumpbot

20 Jan 2021, 19:45

ER

Is y < 0 (1) x + y = 1 (2) x^2 < y^2

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

12 Mar 2023, 09:57

3

2

1,243

by: Rishika2805

16 Aug 2025, 03:42

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Is y < 2x ? (1) y/4 < x/2 (2) (y - 2x)/3 <0

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Jeli13

18 Jul 2019, 01:58

38

5

24,690

by: bumpbot

03 Dec 2023, 09:53

ER

Is Y < 40? (1) Y - X > 40 (2) X + Y = 40

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

20 Jan 2021, 07:00

3

2

2,786

by: BrentGMATPrepNow

20 Jan 2021, 09:14

ER

Is y < z ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Gnpth

07 Aug 2014, 11:37

9

11

4,134

by: bumpbot

05 Jul 2023, 05:16

ER

Is y < z ? (1) y + z = 1 (2) y^2 < z^2

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

GeorgeKo111

03 Jul 2019, 09:25

21

9

5,386

by: bumpbot

08 Feb 2024, 01:22

Is y = 0 or y > 0 ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

KSBGC

21 Apr 2018, 17:01

2

6

1,943

by: bumpbot

12 May 2019, 07:54

ER

Is y = 3? (1) (y - 3)(x - 4) = 0 (2) (x - 4) = 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

14 Feb 2016, 05:32

13

4

10,181

by: Chethan92

05 Nov 2019, 11:01

ER

Is y = 6? (1) y^2 = 36 (2) y^2 - 7y + 6 = 0

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

ganand

08 Apr 2017, 03:10

28

5

12,935

by: Bunuel

12 Jul 2025, 23:22

ER

Is y = 7?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

09 Mar 2016, 13:35

4

5

3,553

by: bumpbot

21 Jul 2020, 02:10

ER

Is y = 7?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

09 Mar 2016, 13:34

14

16

5,904

by: bumpbot

14 Mar 2023, 12:43

ER

Is y − x < 60 ? (1) When x and y are rounded to the nearest unit, the

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

10 Sep 2020, 00:15

9

5

2,311

by: bumpbot

14 Sep 2021, 21:34

ER

Is y a multiple of 15?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

282552

18 May 2015, 04:35

50

8

12,349

by: bumpbot

07 Sep 2024, 03:06

ER

Is y a perfect square, where x and y are natural numbers?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

sritamasia

04 Dec 2021, 22:39

2

4

1,897

by: kaptainklutz

05 Dec 2021, 15:09

ER

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

605-655 (Medium) | Algebra, Number Properties

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

Sanya15

06 Jul 2021, 00:09

11

4

2,731

by: shivani1351

14 Jan 2026, 06:25

ER

Is y a positive number? (1) 33y > 44y (2) y + 1 is positive.

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

14 Aug 2019, 01:27

4

1,352

by: Bunuel

10 Sep 2019, 01:46

ER

Is y a positive number? (1) 2x + y > 27 (2) x – 3y < 24

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

13 Feb 2021, 09:13

9

6

4,866

by: bumpbot

27 Mar 2022, 00:20

ER

Is y a prime number? (1) y^2 has exactly 3 positive factors. (2) y is

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

13 Jan 2023, 11:15

10

3

1,541

by: Bunuel

22 Sep 2025, 09:48

ER

Is y an integer greater than 1?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

27 Dec 2016, 08:52

4

9

2,826

by: bumpbot

29 Apr 2021, 05:19

ER

Is y an integer greater than 7?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

26 Feb 2017, 08:57

4

2,063

by: matthewsmith_89

27 Feb 2017, 18:02

ER

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

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

subhajeet

10 Feb 2012, 05:21

40

6

18,863

by: bumpbot

29 Oct 2024, 00:57

ER

Is y an integer? (1) When y is divided by two, the result is the squar

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

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

Bunuel

31 Dec 2017, 12:18

8

5

3,002

by: bumpbot

06 May 2023, 13:29

ER

Is y between -2 and 1 on the number line?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

warriorguy

09 Apr 2017, 09:38

27

11

17,467

by: bumpbot

31 Jul 2024, 08:20

ER

Is y between 1 and 2, exclusive?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

29 Aug 2016, 04:01

3

5

3,527

by: bumpbot

24 May 2023, 01:13

ER

Is y equal to 25% greater than x? (I) 75% of x is equal to 60% of y. (

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

Russ19

27 Aug 2020, 06:02

3

1,362

by: EgmatQuantExpert

27 Aug 2020, 08:43

ER

Is Y greater than 7/11?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

05 Nov 2014, 08:28

14

4

8,967

by: bumpbot

14 May 2022, 02:41

Is y greater than x? (1) |y|<1 and |x| <2 (2) y>0

Sub 505 (Easy) | Absolute Values, Inequalities

Sub 505 (Easy) | Absolute Values, Inequalities hide tags

aiming4mba

22 Jul 2010, 13:07

9

6

5,993

by: bumpbot

16 Sep 2022, 10:43

ER

Is y greater than y^2? (1) y is greater than -1 (2) y^2 is greater the

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

05 Nov 2019, 00:53

10

12

3,160

by: lacktutor

05 Nov 2019, 13:28

ER

Is y larger than 1? (1) y is larger than 0. (2) y^2 – 4 > 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

29 Oct 2017, 01:47

2

3,770

by: amanvermagmat

29 Oct 2017, 11:01

ER

Is y positive? (1) |3y| > 18 (2) y > 3

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

30 Oct 2023, 01:30

2

1,199

by: vanhanguyen267

30 Oct 2023, 08:17

ER

Is y^(-x) negative? (1) y is positive. (2) x is negative.

555-605 (Medium) | Exponents, Inequalities

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

Bunuel

13 Sep 2023, 01:30

5

3

3,364

by: bumpbot

27 Apr 2025, 02:00

ER

Is y^2 < 1?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Sajjad1994

26 Dec 2020, 10:10

2

1

1,726

by: CrackverbalGMAT

26 Dec 2020, 19:25

ER

Is y^2 + 7y + xy even?

805+ (Hard) | Multiples and Factors, Number Properties

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

alphonsa

21 Aug 2014, 00:13

33

11

7,734

by: bumpbot

12 May 2022, 19:24

ER

Is y^2 = 0?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

11 Nov 2017, 09:34

1

2

3,041

by: bumpbot

23 Apr 2022, 09:46

ER

Is y^2>y*|y|?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

chetan2u

24 May 2016, 09:34

2

4

1,951

by: MathRevolution

25 May 2016, 03:55

ER

Is y^3 < |y|?

555-605 (Medium) | Absolute Values, Inequalities

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

ydmuley

25 Jun 2017, 09:03

1

9

2,784

by: niks18

28 Jun 2017, 12:34

ER

Is y^3 ≤ |y|? (1) y < 1 (2) y < 0

555-605 (Medium) | Absolute Values, Inequalities

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

skamal7

16 Apr 2013, 23:16

39

13

10,295

by: bumpbot

18 Nov 2023, 19:05

ER

Is y^4 < x^2y^2 ? (1) x < y (2) y < 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

19 Apr 2023, 10:15

5

9

2,185

by: unraveled

04 Jul 2024, 09:47

ER

Is y^x > x^y? (1) y > x (2) x is a positive number

655-705 (Hard) | Exponents, Inequalities

655-705 (Hard) | Exponents, Inequalities hide tags

Bunuel

10 Sep 2017, 21:42

20

7

5,273

by: bumpbot

14 Mar 2024, 08:17

ER

Is y!/x! an integer?

Poor Quality

Poor Quality hide tags

BukrsGmat

13 Jul 2012, 04:17

7

10

7,617

by: akshayk

13 Jun 2017, 22:34

ER

Is y>0? (1) x^2y^2=0 (2) x^2+y^2=0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

08 May 2023, 01:30

1

5

1,435

by: Bunuel

28 Nov 2023, 00:06

ER

Is y>y? (1) y < x z (2) z > x

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

20 Apr 2021, 01:30

4

9

1,875

by: Bunuel

21 Apr 2021, 01:15