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

176

15

78,755

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

856

24

188,544

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

487,972

by: bb

29 Aug 2025, 13:27

ER

Is x > 4? (1) |x| > 5 (2) x > -5

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

07 Mar 2016, 08:48

21

8

5,952

by: bumpbot

17 Jul 2022, 11:44

ER

If N is a positive integer, what is the tens digit of N?

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

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

Bunuel

07 Mar 2016, 08:53

22

7

7,776

by: bumpbot

30 Oct 2025, 00:03

ER

Is 10m > 5n - k?

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

07 Mar 2016, 08:57

19

7

6,657

by: bumpbot

09 Nov 2022, 03:26

ER

If v = (w)^2(y)(z), how many positive factors does v have?

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

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

Bunuel

07 Mar 2016, 09:00

8

6

6,694

by: bumpbot

27 Sep 2023, 13:29

ER

Six different companies are each donating a certain amount of money to

605-655 (Medium) | Min-Max Problems, Word Problems

605-655 (Medium) | Min-Max Problems, Word Problems hide tags

Bunuel

07 Mar 2016, 09:01

30

8

8,776

by: bumpbot

02 Oct 2025, 06:28

ER

Is the range of a six-number set greater than 3?

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

07 Mar 2016, 09:05

40

4

7,288

by: bumpbot

25 Oct 2025, 13:17

ER

Does the integer k have at least four different prime factors?

555-605 (Medium) | Multiples and Factors

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

Bunuel

07 Mar 2016, 09:11

3

7

4,365

by: bumpbot

08 Dec 2022, 06:57

ER

What is the value of integer q? (1) qr + qs = r + s (2) r -s

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

07 Mar 2016, 09:13

38

11

11,507

by: bumpbot

25 May 2024, 00:27

ER

If |x−y|=y, what is the value of x?

555-605 (Medium) | Absolute Values +2 tags

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

Bunuel

07 Mar 2016, 09:17

24

7

11,146

by: bumpbot

01 Oct 2025, 04:09

ER

x and y are consecutive integers such that x > y. What is the absolute

605-655 (Medium) | Absolute Values, Number Properties

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

Bunuel

07 Mar 2016, 11:08

11

7

4,315

by: bumpbot

09 Nov 2022, 03:34

ER

Tom was born on October 28th. On what day of the week was he born?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

07 Mar 2016, 11:36

1

5

2,824

by: rhine29388

01 Jul 2016, 03:11

ER

When 3-digit integer 6a3 plus 3-digit integer 3b5 is divisible by 9, i

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

MathRevolution

07 Mar 2016, 16:59

23

7

4,932

by: bumpbot

05 Jan 2024, 14:41

ER

If x and y are non-zero integers, is x divisible by 11?

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

RoberJunior

09 Mar 2016, 05:07

9

4

4,665

by: bumpbot

31 Dec 2025, 03:13

ER

m and n are positive integers. What is the value of m?

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

09 Mar 2016, 12:23

13

5

4,040

by: bumpbot

18 Nov 2020, 05:20

ER

Set A contains distinct integers: A = {2,4,6,-8,x,y}. When two numbers

805+ (Hard) | Absolute Values, Probability

805+ (Hard) | Absolute Values, Probability hide tags

Bunuel

09 Mar 2016, 12:34

42

5

7,106

by: bumpbot

21 May 2023, 07:27

ER

If n is an integer, is n^3 divisible by 54?

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

Bunuel

09 Mar 2016, 12:48

2

5

2,675

by: chesstitans

16 Apr 2017, 12:18

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

8,438

by: bumpbot

22 Oct 2025, 16:17

ER

Is a positive?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

09 Mar 2016, 12:51

3

3,461

by: Mo2men

30 Mar 2017, 04:56

ER

Is a < b? (1) a^b < b^a (2) a/b > 1

705-805 (Hard) | Exponents, Inequalities

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

Bunuel

09 Mar 2016, 13:01

11

5

2,507

by: bumpbot

15 Jul 2023, 04:22

ER

If 18 < x < 68, is the integer x even?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

09 Mar 2016, 13:06

1

5

1,989

by: tejas0999

06 Oct 2017, 23:41

ER

Is x = 3? (1) x^2 + 6x + 9 = 0 (2) x^2 + 7x - 21 > 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

09 Mar 2016, 13:19

6

12

3,377

by: Aderonke01

30 Apr 2019, 13:02

ER

Is x = 3? (1) x^2 + 17x - 60 = 0 (2) x - y^2 > 0

605-655 (Medium) | Algebra, Inequalities

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

Bunuel

09 Mar 2016, 13:21

3

2,217

by: WannaManaConsult

14 May 2021, 11:50

ER

Is x = 3?

555-605 (Medium) | Algebra, Inequalities

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

Bunuel

09 Mar 2016, 13:22

2

1,984

by: shahsuhailp

11 Jun 2019, 22:16

ER

Is |a| > a? (1) a^2 < a (2) (a/2) > (2/a)

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

09 Mar 2016, 13:25

3

4

3,571

by: SaquibHGMATWhiz

24 May 2023, 21:59

ER

Line L is perpendicular to line K whose equation is 3y = 4x + 12; Line

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

Bunuel

09 Mar 2016, 13:28

37

9

9,154

by: Nidanyr

14 Apr 2023, 02:13

ER

What is the 6th term of the Arithmetic sequence?

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

Bunuel

09 Mar 2016, 13:31

29

3

15,834

by: Adit_

04 Apr 2026, 09:04

ER

Is |a| > |b|? (1) 1/(a - b) > 1/(b - a) (2) a + b < 0

705-805 (Hard) | Absolute Values, Inequalities

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

Bunuel

09 Mar 2016, 13:32

6

4,003

by: HoudaSR

16 Jun 2023, 15:31

ER

Is y = 7?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

09 Mar 2016, 13:34

14

16

5,902

by: bumpbot

14 Mar 2023, 12:43

ER

Is y = 7?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

09 Mar 2016, 13:35

4

5

3,549

by: bumpbot

21 Jul 2020, 02:10

ER

When a positive integer 'x' is divided by a divisor 'd', the remainder

805+ (Hard) | Multiples and Factors, Remainders

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

Bunuel

09 Mar 2016, 13:36

129

9

14,395

by: bumpbot

12 Sep 2025, 14:56

ER

If m is the arithmetic mean (average) of 4 integers a, b, c, and d and

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

10 Mar 2016, 04:56

16

3

3,768

by: bumpbot

23 Jul 2025, 00:33

ER

Are lines p (with slope m) and q (with slope n) perpendicular to each

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

Bunuel

10 Mar 2016, 05:11

6

7

3,773

by: bumpbot

23 Jul 2021, 09:08

ER

If operation represent addition or subtraction, 34=?

605-655 (Medium) | Functions and Custom Characters

605-655 (Medium) | Functions and Custom Characters hide tags

MathRevolution

11 Mar 2016, 06:06

3

3,093

by: bumpbot

04 Apr 2026, 08:37

ER

If n is a positive integer, is n/18 an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

shapla

12 Mar 2016, 10:04

11

4

4,459

by: bumpbot

22 Jun 2024, 19:48

ER

How many numbers of 7 consecutive positive integers are divisible by 6

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

13 Mar 2016, 09:22

13

4

5,093

by: bumpbot

25 Feb 2026, 22:44

ER

What is the median of five integers 20, 22, 26, 30 and a?

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

13 Mar 2016, 09:24

12

5

3,530

by: glagad

14 Sep 2024, 23:37

ER

Is x > 6 ? (1) x^(1/2) > 2.5 (2) x > 37^(1/2)

555-605 (Medium) | Inequalities, Roots

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

akxshay

13 Mar 2016, 15:28

31

9

9,166

by: bumpbot

05 Feb 2025, 02:12

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

4,341

by: bumpbot

08 Jul 2023, 22:37

ER

Is the positive integer X divisible by 21?

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

Bunuel

14 Mar 2016, 07:47

38

15

11,748

by: bumpbot

07 Aug 2025, 10:56

ER

What is the value of X, if X and Y are two distinct integers and their

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

14 Mar 2016, 08:07

12

4

18,270

by: bumpbot

15 Aug 2025, 13:19

ER

Is 8^x > 4^y? (1) x > y (2) 3x > 2y

655-705 (Hard) | Exponents, Inequalities

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

MathRevolution

15 Mar 2016, 18:48

35

6

7,153

by: bumpbot

03 Jan 2024, 21:04

ER

Is x < y? (1) y/x < 1 (2) y < 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

TheUltimateWinner

11 Oct 2023, 10:14

8

5

3,049

by: bumpbot

11 Oct 2023, 09:22

ER

If A and B are integers, is B > A?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

16 Mar 2016, 11:12

3

1,693

by: nipunjain14

17 Mar 2016, 19:23

ER

Peter can drive to work via the expressway or via the backroads, which

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

Bunuel

16 Mar 2016, 11:15

6

5,037

by: bumpbot

19 Dec 2020, 09:03

ER

n is a positive number; z – 15 is also a positive number; is z/n less

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

16 Mar 2016, 11:33

3

1,703

by: nipunjain14

17 Mar 2016, 22:55

ER

What is the remainder when x is divided by 3?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

25 Sep 2024, 00:26

12

8

8,928

by: pierjoejoe

07 Oct 2024, 07:21

ER

John invest $2,000 at a constant interest rate of annually compound 5%

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

MathRevolution

16 Mar 2016, 18:26

12

4

4,736

by: bumpbot

13 Oct 2025, 01:26

ER

If the average (arithmetic mean) of 9 numbers is 325, what is the medi

505-555 (Easy) | Statistics and Sets Problems

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

MathRevolution

16 Mar 2016, 18:27

2

2,172

by: MathRevolution

19 Mar 2016, 23:05

ER

If A and B are integers and atleast one of the two is positive

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

chetan2u

20 Feb 2018, 00:27

7

6

2,631

by: bumpbot

09 May 2017, 05:36

ER

If n is a positive integer, is n + 2 > z?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

17 Mar 2016, 03:59

7

4

5,775

by: bumpbot

10 Feb 2024, 04:54