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

179

15

79,109

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,749

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

488,325

by: bb

29 Aug 2025, 13:27

ER

Is standard deviation of Set A > the standard deviation of Set B? 1)

555-605 (Medium) | Statistics and Sets Problems

555-605 (Medium) | Statistics and Sets Problems hide tags

GMATinsight

11 Aug 2018, 22:47

17

16

5,211

by: bumpbot

28 Dec 2019, 08:57

ER

Is st = t ? (1) s = st (2) t = ts

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

sidmaken

07 Jun 2014, 13:04

117

13

36,105

by: bumpbot

19 Jan 2024, 03:13

ER

Is square root of a positive integer x an integer?

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

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

summer101

03 Jun 2013, 07:14

37

2

9,777

by: Bunuel

05 Jun 2013, 03:07

ER

Is sqrt x an integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

vaibhav1221

16 Sep 2019, 04:12

1

1,692

by: chetan2u

16 Sep 2019, 04:12

ER

Is slope of line L > 0? 1) Line L passes through two quadrants 2) Lin

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

GMATinsight

07 Jun 2022, 21:51

6

3

1,709

by: EeshitaV

01 Oct 2023, 21:06

ER

Is Sarahs mathematics test score higher than the class average?

Sub 505 (Easy) | Non-Math Related

Sub 505 (Easy) | Non-Math Related hide tags

gmatt1476

30 May 2024, 10:33

5

2

4,283

by: bumpbot

17 Jan 2026, 21:42

ER

Is Sam older than Mike?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

AKKAMI-

26 Jun 2024, 09:26

1

1,641

by: Bunuel

26 Jun 2024, 09:36

ER

Is S.D. of Set B < S.D. of Set A?

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

GMATinsight

09 Mar 2018, 11:31

2

1,275

by: MathRevolution

12 Mar 2018, 13:11

ER

Is s^2/4 an integer? (1) s/(1/2) is an integer. (2) s/2 is an integer

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

11 Oct 2023, 01:30

1

2

1,296

by: NITISH13111

17 Oct 2023, 04:40

ER

Is s between r and t (1) |r-t| > |r-s| (2) |r-t| > |t-s|

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

04 Apr 2019, 22:47

2

1,717

by: Archit3110

06 Apr 2019, 03:56

ER

Is s between r and t (1) |r-s| < |r-t| (2) |r-s| < |s-t|

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

04 Apr 2019, 22:46

5

2,374

by: bumpbot

22 May 2023, 07:24

ER

Is s an odd integer?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

MasterGMAT12

19 Dec 2010, 19:45

37

3

10,218

by: bumpbot

28 Aug 2025, 07:24

ER

Is s = r?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

11 Aug 2016, 06:57

6

5

4,654

by: bumpbot

31 Aug 2019, 07:11

ER

Is S < T? (1) R = T/2 (2) S = R/2

605-655 (Medium) | Algebra, Inequalities

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

Helium

22 Sep 2018, 20:01

3

1,103

by: sauravvirat1986

24 Sep 2018, 05:19

ER

Is RX > $2,000? (1) One percent of R times $300,000 is $1,500. (2) On

505-555 (Easy) | Percent and Interest Problems

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

Bunuel

17 Apr 2018, 05:44

1

1,038

by: chetna14

18 Apr 2018, 21:15

ER

Is rw = 0?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

BrainLab

19 Sep 2015, 14:51

43

12

28,033

by: bumpbot

11 Jun 2023, 06:22

ER

Is rt + ts = 1 ? (1) rs = 1 (2) st = 1

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

30 Jun 2022, 01:30

2

1

1,094

by: zhanbo

30 Jun 2022, 05:26

ER

Is RST a right triangle? (1) The degree measure of R is twice the de

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

02 Oct 2022, 07:44

1

2,835

by: gmatCuck

02 Oct 2022, 07:50

ER

Is rst 1? (1) rs + rt = 5 (2) r + st = 2

805+ (Hard) | Algebra, Inequalities

805+ (Hard) | Algebra, Inequalities hide tags

gmatpapa

30 Dec 2010, 06:23

28

6

7,564

by: bumpbot

03 Mar 2025, 08:24

ER

Is rst = 1?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

sudhagar

07 Nov 2013, 02:08

15

6

19,821

by: Bunuel

07 Nov 2013, 02:10

ER

Is rst = 1 ? (1) r p t = s p t s (2) prt t = p t st

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

31 Dec 2017, 12:10

2

5

2,448

by: bumpbot

01 Feb 2022, 19:10

ER

Is rst = 1 ? (1) rs = 1 (2) st = 1

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

1, 2

loki

02 Feb 2022, 00:53

204

28

37,579

by: totaltestprepNick

28 Feb 2026, 09:16

ER

Is rst > rs/t? (1) rst > 2 (2) t > 2

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

nishith17

09 Jul 2023, 00:17

14

10

4,348

by: bumpbot

08 Jul 2023, 22:37

ER

Is rst > 1?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

14 Jun 2017, 06:49

2

7

2,605

by: JeffTargetTestPrep

06 Jul 2017, 18:30

ER

Is rs/(r + s) > 1/2 ? (1) r > 1 and s > 1 (2) r > 2 and s > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

17 Jan 2020, 02:42

10

3

5,107

by: Bunuel

09 Sep 2023, 11:36

ER

Is rs = rx − 2 ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Asifpirlo

21 Aug 2013, 17:51

3

4,243

by: mvictor

17 Mar 2016, 18:44

ER

Is root{x} a prime number?

655-705 (Hard) | Absolute Values, Number Properties

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

LM

26 Jan 2012, 07:29

60

10

22,957

by: Bunuel

20 Sep 2025, 07:21

ER

Is rectangular box B a cube? (1) All six faces of B have the same are

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

18 Jan 2023, 02:30

2

1

1,174

by: dendenden

24 Jan 2023, 07:03

ER

Is rectangular box B a cube? (1) All six faces of B have the same are

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

05 May 2021, 03:30

3

1

1,280

by: TestPrepUnlimited

24 Aug 2021, 12:20

ER

Is rectangular block B a cube?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

energetics

12 Mar 2019, 11:22

4

2

3,853

by: SaquibHGMATWhiz

27 Oct 2022, 08:20

ER

Is rectangle R a square? (1) At least one side of rectangle R has an

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

29 Sep 2021, 01:00

13

6

3,281

by: bumpbot

17 Jan 2023, 23:51

ER

Is rectangle ABCD a square?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

24 Jun 2016, 03:24

8

9

5,208

by: HKD1710

25 Jun 2016, 14:07

Is r>s? (1) r = 3s (2) s - 4 = r

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

MHIKER

04 Dec 2020, 09:54

2

1,964

by: callmeDP

04 Dec 2020, 15:33

ER

Is r/s^2 a terminating decimal?

555-605 (Medium) | Fractions and Ratios

555-605 (Medium) | Fractions and Ratios hide tags

SudiptoGmat

23 Feb 2010, 14:23

74

5

27,481

by: bumpbot

21 Jul 2025, 02:03

ER

Is r/s greater than 1

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

abuc0112

31 Dec 2021, 15:24

4

3

3,277

by: bumpbot

06 Mar 2023, 14:39

ER

Is R/S an integer, if R and S are non-zero

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

chetan2u

12 Apr 2016, 21:05

7

3

2,600

by: bumpbot

24 Mar 2022, 06:23

ER

Is r*s a prime number?

Sub 505 (Easy) | Multiples and Factors, Number Properties

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

chetan2u

23 Nov 2019, 21:45

1

5

1,750

by: bumpbot

31 Oct 2023, 06:51

ER

Is r*s a multiple of 25? (r and s are positive integers)

605-655 (Medium) | Multiples and Factors

605-655 (Medium) | Multiples and Factors hide tags

fattty

13 Jan 2016, 23:34

85

10

10,681

by: bumpbot

24 Apr 2025, 05:09

ER

Is r^x < 100?

705-805 (Hard) | Exponents +2 tags

705-805 (Hard) | Exponents, Inequalities, Roots hide tags

Bunuel

03 Oct 2017, 00:05

34

8

4,919

by: bumpbot

22 May 2023, 08:00

ER

Is r^6*s^3*t^4 negative?

655-705 (Hard) | Inequalities, Number Properties

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

GMATBusters

18 Apr 2020, 06:56

3

7

1,699

by: sauravleo123

18 Apr 2020, 11:55

Is r to the right of -6 on the number line?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

rraman

11 Mar 2019, 06:02

6

2

8,676

by: bumpbot

06 Jun 2023, 02:52

ER

Is r not equal to s?

555-605 (Medium) | Inequalities, Number Properties

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

Bunuel

30 May 2016, 13:55

3

2,186

by: CounterSniper

31 May 2016, 00:43

ER

Is r negative?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Helium

13 Nov 2018, 09:54

3

6

2,181

by: bumpbot

01 Aug 2022, 00:30

ER

Is r more than -12?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

dxx

02 Jun 2014, 11:22

2

5

2,700

by: bumpbot

29 Oct 2021, 04:50

ER

Is r greater than 0.52? (1) r is greater than 1/2. (2) r is equal to

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

30 Jun 2021, 02:30

2

1

1,278

by: CrackverbalGMAT

30 Jun 2021, 04:29

ER

Is r greater than 0.27? (1) r is greater than 1/4 (2) r is equal to 3/

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

23 Sep 2018, 05:03

2

3

7,096

by: CrackverbalGMAT

22 Jun 2021, 12:38

ER

Is r between s and t? (1) |r -s| < |r - t| (2) |r -s| > |s - t|

705-805 (Hard) | Absolute Values, Inequalities

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

shivanigs

04 Apr 2019, 22:47

18

13

7,788

by: bumpbot

16 Apr 2020, 23:09

ER

Is r an even integer?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

righthand

24 Aug 2020, 04:36

7

2

2,197

by: bumpbot

15 Feb 2024, 09:46

ER

Is r = s ? (1) -s <= r <= s (2) |r| >= s

655-705 (Hard) | Absolute Values, Inequalities

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

yezz

22 Feb 2013, 11:52

48

13

10,164

by: bumpbot

09 Jun 2025, 21:21

ER

Is r + s^10 a positive number?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

07 May 2018, 03:02

2

3

1,151

by: wishalsp333

07 May 2018, 07:07