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

79,076

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

188,730

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

488,294

by: bb

29 Aug 2025, 13:27

ER

Is c equal to the median of the 3 positive integers a, b, c

555-605 (Medium) | Statistics and Sets Problems

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

rxs0005

14 Jan 2011, 16:25

3

8

4,693

by: bumpbot

23 Aug 2016, 04:06

ER

Is c = d ? (1) cd = 1 (2) |c| = d

555-605 (Medium) | Absolute Values, Algebra

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

Bunuel

18 Mar 2022, 01:30

19

5

4,383

by: bumpbot

20 Dec 2023, 03:05

ER

Is c > 2 if a + b + c > 0 ? (1) c > a + b + 2 (2) a + b + 2 < 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

01 Sep 2015, 22:36

10

6

3,404

by: bumpbot

17 Jan 2020, 03:59

ER

Is BG > EC?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

05 Feb 2015, 09:09

14

5

5,682

by: bumpbot

03 Aug 2022, 23:59

ER

Is BC the largest side of triangle ABC? (1) ∠A=121° (2) AB=AC

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

26 May 2021, 05:00

1

2

1,644

by: pandajee

06 Jun 2021, 13:39

ER

Is BC || to DF? (1) Angle x + angle y = 180° (2) Angle z = angle w

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

10 Nov 2020, 01:00

1

1,023

by: stne

11 Nov 2020, 11:44

ER

Is b<50 (1) The square of (b+x) is less than 2500 (2) The square of (

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

capsicumgirl

29 Sep 2015, 22:05

6

7

3,037

by: bumpbot

23 Aug 2022, 22:49

ER

Is b/3 an integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

1, 2

valerjo79

26 Nov 2012, 03:16

75

21

15,362

by: bumpbot

10 Jul 2023, 09:58

ER

Is b^2 divisible by 4, if a, b, and c are positive integers where

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

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

EncounterGMAT

09 Sep 2019, 01:40

5

4

1,718

by: AIKAGC

19 Dec 2024, 05:55

ER

Is b^2 ≤ a^2 (1) b ≤ a (2) a + b = a − b

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

14 Apr 2020, 03:13

7

6

2,714

by: bumpbot

11 Sep 2021, 04:19

is b^2 + 2ab - 48a^2 > 0 ?

Poor Quality

Poor Quality hide tags

nick1816

10 May 2019, 23:00

1

3

1,219

by: nick1816

28 May 2019, 10:18

ER

Is b the median of 3 numbers a, b, and c?

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

Bunuel

09 Mar 2016, 12:49

31

8

8,449

by: bumpbot

22 Oct 2025, 16:17

ER

Is b prime? (1) b + 1 is not prime (2) b^2 has 3 distinct factors

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

16 Sep 2022, 01:30

2

1,180

by: GMATinsight

16 Sep 2022, 05:59

Is b is the median of 3 numbers a, b, and c? (1) b/a = c/b (2) ab < 0

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

TheUltimateWinner

01 Oct 2019, 12:18

4

3

1,746

by: bumpbot

02 Feb 2025, 07:37

ER

Is b greater than 1?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

askhokha

13 Aug 2012, 06:50

1

2

3,914

by: bumpbot

29 Mar 2017, 05:46

ER

Is b even? (1) a/b is even (2) (a+1)b is even

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

04 Apr 2018, 23:46

5

7

2,115

by: shmba

23 Aug 2018, 19:40

Is b even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Mo2men

26 Dec 2018, 14:02

3

2,101

by: progressgmat

26 Dec 2018, 15:12

ER

Is B an integer? (1) B^3 is an integer

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

rxs0005

04 Feb 2012, 18:35

7

2

3,333

by: bumpbot

20 Jun 2016, 22:41

ER

Is b an integer? (1) a^b is an integer (2) a is an integer

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

06 Apr 2018, 04:41

4

2,046

by: ujjwal80

06 Apr 2018, 22:46

ER

Is b an even integer?

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

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

Bunuel

12 Dec 2016, 12:46

5

3

3,616

by: bumpbot

09 Mar 2024, 09:09

Is b a positive number? (1) 155b ≥ 0 (2) -b ≤ 0

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Jihyo

15 May 2021, 08:45

1

4,207

by: harshavin

15 May 2021, 09:12

ER

Is b = 6? (1) 9b is not an even integer. (2) 4b is not an even intege

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

02 Nov 2016, 02:50

3

1,322

by: GSBae

03 Nov 2016, 01:36

ER

Is b = 3? (1) b 4 = 81 (2) b 3 = 27

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Carcass

28 Sep 2022, 02:06

2

1

945

by: BrushMyQuant

28 Sep 2022, 10:11

ER

Is b = 21? (1) The average (arithmetic mean) of a, b and 16 is 14.

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

07 Jan 2018, 23:13

1

2

1,582

by: MathRevolution

11 Jan 2018, 11:54

ER

Is b < a^2 ? (1) b < a (2) b = −2

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

12 Aug 2020, 01:51

6

5

1,935

by: KaramveerBakshi

12 Aug 2020, 21:57

ER

Is b < 3? (1) (b, 3) lies in the solution of y > 2x - 3 (2) (a, b)

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

Bunuel

28 Aug 2023, 01:30

1

833

by: nivivacious

28 Aug 2023, 07:22

ER

Is b < 0? (1) b^3 < b (2) b^2 > b

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

01 Sep 2021, 02:00

8

4,543

by: Gijmaja

23 Oct 2022, 10:22

ER

Is b < 0 ? (1) Integer b is a multiple of 13 (2) b^3 < 13

655-705 (Hard) | Inequalities, Number Properties

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

Bunuel

27 Jan 2015, 07:44

52

11

9,631

by: bumpbot

26 Nov 2023, 08:04

ER

Is b < 0 ? (1) b^3 < b (2) b^2 > b

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Manonamission

08 Oct 2016, 06:55

17

13

6,484

by: bumpbot

11 Feb 2024, 01:05

ER

Is b > a ? (1) a^4 + b^4 + c^4 = 0 (2) a^3 + b^3 + c^3 = 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

20 Jun 2022, 02:26

3

2

1,038

by: paragamrutkar

20 Jun 2022, 21:33

ER

Is b > 4? (1) 2b^2 = 50 (2) 3b - 2 = -17

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

24 Feb 2022, 02:30

1

1,091

by: kungfury42

24 Feb 2022, 04:56

ER

Is ay < 2y + x (a - 2)? (1) x > y (2) a > 2

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

ifteec464

26 Sep 2020, 01:11

3

2

1,190

by: TestPrepUnlimited

27 Sep 2020, 16:42

ER

Is ax = 6 - bx ?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

avohden

24 Oct 2013, 17:35

5

7

4,365

by: bumpbot

02 Feb 2023, 03:40

ER

Is ax = 3 - bx? (1) x(a + b) = 3 (2) a = b = 1.5 and x = 1

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

grantcke

29 Mar 2018, 21:18

6

9,478

by: bumpbot

02 Feb 2023, 03:04

ER

Is ax = (7 + 5bx)/4 ? (1) x(4a - 5b) = 7 (2) a = 1

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

17 Jun 2018, 06:27

1

3

2,987

by: bumpbot

17 Apr 2022, 04:20

ER

Is at least one of 3 consecutive integers a multiple of 5?

605-655 (Medium) | Multiples and Factors

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

Bunuel

15 Jan 2024, 02:30

4

2

1,303

by: Aryaa03

15 Jan 2024, 23:40

ER

Is area of the triangle ABC greater than 24? 1) Two of the Sides of t

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

GMATinsight

03 Jul 2018, 06:50

1

1,384

by: PKN

03 Jul 2018, 08:54

ER

Is Area of the Triangle ABC ≥ 24? 1) Two sides of the triangle are 6

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

GMATinsight

03 Dec 2017, 02:40

2

5

1,926

by: bumpbot

26 May 2019, 02:07

ER

Is arc ABC equal in length to arc DEF? (1) AD⊥CF (2) AD=CF

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

Bunuel

05 May 2021, 07:00

16

4

7,052

by: bumpbot

29 Oct 2023, 14:03

ER

Is arc ABC equal in length to arc DEF ? (1) AD⊥CF (2) AD and CF bis

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

26 Jun 2020, 02:51

14

5

2,236

by: sambitspm

26 Jun 2020, 20:59

ER

Is angle M = 90?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Xin Cho

18 Aug 2019, 08:38

1

5

2,171

by: Xin Cho

19 Aug 2019, 10:41

ER

Is angle BAC a right angle? (1) x = 2y (2) y = 1.5z

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

29 Oct 2017, 01:58

2

2,693

by: Luckisnoexcuse

29 Oct 2017, 21:45

ER

Is an integer n even? (1) n(n + 2) = even (2) n(n + 3) = even

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

14 Jun 2023, 06:00

1

3

1,500

by: Bunuel

03 Jul 2023, 10:10

ER

Is an integer ‘6’ present in a set of 12 consecutive integers?

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

26 Sep 2018, 05:32

1

1,082

by: GMATinsight

26 Sep 2018, 06:34

Is AD the bisector of angle A in triangle ABC?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

vibhav

21 May 2012, 10:36

15

18

11,086

by: bumpbot

13 Jul 2022, 13:26

ER

Is AD > BC? (1) CD = AB (2) Angle CAB = Angle BCA

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

19 Jan 2022, 04:00

1

1,308

by: stne

31 Jan 2022, 08:57

ER

Is ad > bc ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

josemarioamaya

20 Sep 2013, 00:39

16

10

5,214

by: bumpbot

29 Jan 2020, 10:30

ER

Is ac + bd + bc + ad > 0?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

27 Nov 2019, 02:03

3

2,453

by: bumpbot

03 Dec 2022, 05:00

ER

Is ac + ((a^2 - 1)(b^2 - 1))^(1/2) <= 1 ?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

12 Sep 2022, 08:36

19

6

4,414

by: bumpbot

27 Jun 2025, 15:32

ER

Is abx > aby? (1) ax > ay (2) bx > by

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Casey1985

07 Jan 2020, 07:29

7

3

2,579

by: hiranmay

08 Jan 2020, 08:51