GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

176

15

78,623

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,460

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

487,843

by: bb

29 Aug 2025, 13:27

ER

Does the population of rats in a zoo double every day?

Poor Quality

Poor Quality hide tags

AweSome777

10 Jul 2019, 04:59

1

5

2,101

by: v12345

02 Aug 2021, 00:50

ER

Does the positive integer M have greater than 4 factors?

555-605 (Medium) | Multiples and Factors

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

Bunuel

09 Jun 2020, 06:03

1

3

1,499

by: Archit3110

09 Jun 2020, 09:30

ER

Does the positive integer n have at least 3 positive prime factors?

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

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

Bunuel

06 Sep 2019, 10:56

2

4

2,405

by: HoneyLemon

28 Feb 2021, 09:55

ER

Does the prime number p divide n!?

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

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

surendar26

20 Dec 2010, 10:10

24

11

6,606

by: bumpbot

15 May 2025, 00:04

ER

Does the product jkmn equal 1?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

paki

07 Oct 2022, 08:18

13

8

16,099

by: bumpbot

05 Aug 2025, 10:17

ER

Does the product jkmn equals 1?

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

enigma123

31 Mar 2014, 01:29

7

5

5,469

by: SaquibHGMATWhiz

22 Nov 2022, 08:13

ER

Does the product pqrs equal -1? (1) (pq)/(rs) = -1 (2) p = -1/q and

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

07 Apr 2020, 07:19

2

1,336

by: CrackverbalGMAT

08 Apr 2020, 05:17

ER

Does the rectangle have an area less than 30 unit^2? (1) The perimete

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

14 Jan 2020, 05:21

1

1,384

by: CareerGeek

14 Jan 2020, 09:14

ER

Does the Set A contain only odd prime numbers? (1) A contains only

505-555 (Easy) | Number Properties, Overlapping Sets

505-555 (Easy) | Number Properties, Overlapping Sets hide tags

Bunuel

26 Mar 2024, 01:30

1

995

by: GMATinsight

26 Mar 2024, 02:01

ER

Does the standard deviation of B exceed that of A?

805+ (Hard) | Statistics and Sets Problems

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

freewinzy

04 Sep 2013, 14:04

9

2

3,490

by: bumpbot

11 Jun 2025, 08:12

ER

Does the sum of the prices, not including sales tax, of three chairs

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

07 May 2018, 03:04

4

5

1,599

by: kapstone1996

18 Jun 2019, 09:28

ER

Does the sum p + q + r + s equal 4? (1) (p + q)/(r + s) = 1 (2) p = q

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

12 Jul 2019, 00:00

1

3

1,503

by: bumpbot

02 Aug 2022, 08:11

ER

Does the value of x remain unchanged when rounded to the tenths place?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

22 Feb 2023, 02:30

8

5

1,559

by: Guntabulla

27 May 2024, 02:06

ER

Does there exist an integer d such that x > d > 1 & x/d is an integer?

705-805 (Hard) | Inequalities, Number Properties

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

1, 2

noyaljoseph

24 Jan 2016, 21:33

50

22

10,482

by: bumpbot

14 Mar 2024, 01:00

ER

Does ts/k > 0? (1) ts/(k^2) > 0 (2) k > t + s

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

25 Feb 2020, 03:35

2

1,383

by: Archit3110

25 Feb 2020, 09:40

ER

Does w - v = 0?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

BrentGMATPrepNow

17 Oct 2022, 07:47

7

4

2,620

by: bumpbot

18 Jan 2024, 03:54

ER

Does x – y = 0 ? (1) x/y > 0 (2) x^2 = y^2

605-655 (Medium) | Algebra, Inequalities

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

Bunuel

11 Jul 2019, 01:34

7

5

2,277

by: RawJoker

14 Feb 2020, 01:02

ER

Does x – y = 200? (1) x=10^2 (2) x=100 and y=-100

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

pinkcupcake

17 Mar 2015, 09:39

3

4

6,086

by: bumpbot

04 Sep 2025, 07:54

ER

Does x + c = y + c ? (1) x = y (2) x = c

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

racingip

23 Mar 2017, 12:12

23

6

9,568

by: bumpbot

20 Jan 2024, 18:43

ER

Does x + y = 0? (1) xy < 0 (2) x^2 = y^2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

11 Dec 2014, 07:05

30

10

11,179

by: bumpbot

14 Nov 2025, 05:15

ER

Does x + y = 11 ? (1) x^2 + y^2 = 101 (2) xy = 10

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

12 Aug 2020, 01:06

4

9

2,741

by: bidskamikaze

12 Aug 2020, 17:49

ER

Does x + y = 5 ? (1) 4x + y = 17 (2) x + 4y = 8

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

gmatJP

05 Jun 2019, 08:26

66

13

31,440

by: bumpbot

21 May 2025, 22:07

ER

Does x + y = xy ? (1) The product of x and a positive integer, z, is

555-605 (Medium) | Algebra, Inequalities

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

Bunuel

29 Jun 2021, 01:30

11

8

2,599

by: IanStewart

29 Jun 2021, 20:06

ER

Does x + y = xy?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

KSBGC

26 Apr 2018, 05:53

3

4

7,901

by: hegapm

16 Jun 2021, 02:00

ER

Does x = 10? (1) Ten percent of x is 1 (2) One-fifth of x is an even

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

06 May 2019, 03:06

1

1,374

by: LevanKhukhunashvili

06 May 2019, 03:10

ER

Does x = 100 ? All of the interior angles of a normal 5-sided figure

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

Raisakatyal

23 May 2023, 01:53

1

1,168

by: chetan2u

23 May 2023, 07:05

ER

Does x = 100? (1) y = x/100*x/100*y (2) x > 0

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

15 Nov 2019, 02:33

23

8

4,345

by: Nabneet

02 Sep 2023, 00:44

ER

Does x = 15? (1) The average of x, y, and z is 5. (2) y = -z

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

Bunuel

21 Feb 2018, 23:04

1

4

1,373

by: rishabhmishra

23 Feb 2018, 00:16

ER

Does x = 2? (1) x is a number such that x^2 3x + 2 = 0. (2) x is a

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

13 Sep 2022, 02:56

23

14

11,573

by: KanikaJain

21 Oct 2024, 01:26

ER

Does x = 3? (1) (x - 3)(y - 1)=0 (2) (x - 3)^2 + (y - 1)^2 = 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

03 May 2021, 01:30

15

2

2,625

by: TarunKumar1234

03 May 2021, 10:51

ER

Does x = 7 ? (1) 6 < x < 8 (2) x < 9

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

25 Sep 2023, 01:30

3

1

934

by: IshanSaini

25 Sep 2023, 12:13

ER

Does x = 7? (1) x^2 < 49 (2) x + y = 13

555-605 (Medium) | Algebra, Inequalities

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

Bunuel

20 Oct 2023, 01:30

1

918

by: GMATinsight

20 Oct 2023, 01:50

ER

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

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

11 Oct 2015, 05:24

12

7

9,110

by: bumpbot

24 Jan 2023, 08:25

ER

Does x = y ? (1) The average of x and 1/x equals the average of y and

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

22 Jul 2019, 01:59

4

2

1,240

by: Archit3110

22 Jul 2019, 10:59

ER

Does x = y ? (1) x^2 = y^2 (2) |x| = |y|

Sub 505 (Easy) | Absolute Values

Sub 505 (Easy) | Absolute Values hide tags

apoorvpan

08 May 2012, 00:46

16

7

8,002

by: bumpbot

17 Apr 2022, 03:10

ER

Does x = y ? (1) xy/(x + y) = 0 (2) xy = 0

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

22 Jan 2022, 10:41

22

4

5,060

by: bumpbot

12 Jul 2024, 06:28

ER

Does x = y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

31 Jan 2016, 08:23

2

4

2,594

by: Donnie84

03 Feb 2016, 19:52

ER

Does x = y? (1) |x| = |y| (2) x^2 = y^2

Sub 505 (Easy) | Absolute Values

Sub 505 (Easy) | Absolute Values hide tags

GMATBusters

01 Nov 2018, 08:10

26

3

8,642

by: bumpbot

27 Feb 2025, 15:00

ER

Does x = y? (1) BD is perpendicular to AC. (2) AB is equal to BC.

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

17 Oct 2017, 23:43

4

4,032

by: Plunkster82

23 Oct 2017, 18:14

ER

Does x = y? (1) x^2 - y^2 = 0 (2) (x - y)^2 = 0

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Schawjibb

15 Oct 2013, 09:36

3

6,754

by: bumpbot

24 Jan 2023, 08:21

ER

Does x = y? (1) z = u (2) ABCD is a parallelogram

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

17 Oct 2017, 23:42

4

4,593

by: bumpbot

28 May 2020, 01:02

Does x equal -2?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

EthanTheTutor

09 Jun 2022, 01:39

2

1

933

by: EthanTheTutor

09 Jun 2022, 01:43

Does x equal -2?

555-605 (Medium) | Algebra, Inequalities

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

EthanTheTutor

09 Jun 2022, 01:30

2

1

874

by: EthanTheTutor

09 Jun 2022, 01:33

ER

Does x have at least 3 prime factors? (1) x = 5b, where b is a positiv

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

05 Mar 2019, 05:21

2

5

1,671

by: Bunuel

02 Sep 2025, 06:09

ER

Does x^2 - y^2 = x + y ? (1) x and y are consecutive integers (2) x

555-605 (Medium) | Algebra, Number Properties

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

Bunuel

19 Sep 2022, 06:38

1

1,183

by: GMATinsight

19 Sep 2022, 06:44

ER

Does x^2 - y^2 = x + y ? (1) x and y are consecutive integers. (2) x

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

22 Nov 2022, 02:30

5

4

952

by: gmatophobia

22 Nov 2022, 09:05

ER

Does x^2 + 4x + 4 = 10?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

06 Jan 2017, 02:53

5

2,144

by: BloomingLotus

29 Jan 2017, 11:28

ER

Does x^2 + px + q = 0 have a root? (1) p < 0 (2) q < 0

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

12 May 2023, 03:30

2

1,294

by: TheBipedalHorse

13 May 2023, 06:26

ER

Does x^2 = y ? (1) y^(1/2) = -x (2) x < y

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

jlgdr

07 Sep 2023, 00:36

4

4,221

by: Bunuel

06 Sep 2023, 23:54

ER

Does x/n(s^2 + n^2 + t^2) = xn + yt + zs?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

04 Jul 2022, 22:00

1

974

by: priyabaheti

10 Jul 2022, 07:24