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

183

15

83,729

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of May 2026

1, 2

Bunuel

01 Jan 2026, 05:45

863

24

191,771

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

491,745

by: bb

29 Aug 2025, 13:27

What is the value of positive integer N? (1) Sum of N consecutive po

705-805 (Hard) | Arithmetic, Sequences

705-805 (Hard) | Arithmetic, Sequences hide tags

amanvermagmat

08 May 2018, 23:23

26

8

4,160

by: bumpbot

29 Apr 2026, 07:26

ER

N consecutive integers have a median of 24. What is the largest of the

555-605 (Medium) | Statistics and Sets Problems

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

amanvermagmat

08 May 2018, 23:33

3

1,243

by: bumpbot

16 Apr 2026, 07:19

ER

P, Q, R, S, T are five distinct positive multiples of 10 suc

655-705 (Hard) | Min-Max Problems, Statistics and Sets Problems

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

amanvermagmat

15 May 2018, 23:06

27

6

4,739

by: KarishmaB

07 Apr 2026, 21:49

Out of 80 people, some drink tea, some drink coffee, while some drink

705-805 (Hard) | Overlapping Sets, Word Problems

705-805 (Hard) | Overlapping Sets, Word Problems hide tags

amanvermagmat

28 Apr 2018, 23:14

23

7

7,266

by: bumpbot

15 Feb 2026, 05:29

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A shop sells cigars of brand A as well as brand B. Let X be the event

705-805 (Hard) | Overlapping Sets, Probability

705-805 (Hard) | Overlapping Sets, Probability hide tags

amanvermagmat

08 Jan 2019, 22:40

11

3

2,542

by: egmat

10 Feb 2026, 03:14

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Eleven chocolates are distributed among 5 children: A, B, C, D & E

605-655 (Medium) | Min-Max Problems

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

amanvermagmat

24 Nov 2018, 19:19

20

5

7,337

by: bumpbot

09 Feb 2026, 10:42

ER

If x is a non negative number, Is x > 5? (1) |4 - 3x| = 14

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

amanvermagmat

27 Nov 2018, 22:16

2

3

1,551

by: bumpbot

20 Jan 2026, 02:08

Exactly 'N' people are standing in a queue outside a store

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

amanvermagmat

23 Feb 2018, 23:22

6

5

2,857

by: bumpbot

18 Jan 2026, 02:12

ER

Mani, Sani and Karna have x, y and z number of chocolates respectively

605-655 (Medium) | Arithmetic

605-655 (Medium) | Arithmetic hide tags

amanvermagmat

28 Jun 2018, 11:04

8

4

2,692

by: bumpbot

18 Jan 2026, 00:05

ER

A positive integer Y is a six digit number of the form

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

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

amanvermagmat

08 Aug 2018, 23:10

5

3

3,094

by: bumpbot

14 Jan 2026, 23:43

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What is the value of integer Y? (1) X is an integer such that X*Y = 6

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

amanvermagmat

09 Jul 2018, 21:26

6

2

1,774

by: bumpbot

14 Jan 2026, 00:24

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P, Q, R, S, X, Y are real numbers such that P < X < Q and R < Y < S.

705-805 (Hard) | Algebra, Inequalities

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

amanvermagmat

21 Jun 2018, 21:59

8

3

1,773

by: bumpbot

13 Jan 2026, 23:57

ER

A positive integer X has 'n' total factors, another positive integer Y

705-805 (Hard) | Multiples and Factors

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

amanvermagmat

21 May 2018, 21:34

9

3

1,742

by: bumpbot

13 Jan 2026, 00:22

If |a| represents the 'absolute value of a' for any real number 'a',

705-805 (Hard) | Absolute Values, Number Properties

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

amanvermagmat

21 May 2018, 21:54

8

3

1,878

by: bumpbot

12 Jan 2026, 00:45

A local community club comprises of 15 members, all are standing in a

655-705 (Hard) | Number Properties, Word Problems

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

amanvermagmat

08 Apr 2018, 05:30

3

2

2,022

by: bumpbot

11 Jan 2026, 00:13

ER

There are B number of boys and G number of girls in a class. What is

605-655 (Medium) | Arithmetic, Percent and Interest Problems

605-655 (Medium) | Arithmetic, Percent and Interest Problems hide tags

amanvermagmat

13 Aug 2018, 22:45

16

3

5,499

by: bumpbot

10 Jan 2026, 15:25

ER

A, B and C receive a salary. Salary of A is what percent less than sal

605-655 (Medium) | Arithmetic, Percent and Interest Problems

605-655 (Medium) | Arithmetic, Percent and Interest Problems hide tags

amanvermagmat

06 Apr 2018, 05:13

11

4

3,558

by: bumpbot

10 Jan 2026, 15:01

ER

Daniel has a drawer full of 59 packets, each containing a marker

805+ (Hard) | Min-Max Problems, Word Problems

805+ (Hard) | Min-Max Problems, Word Problems hide tags

amanvermagmat

22 Mar 2018, 07:37

5

2,355

by: bumpbot

09 Jan 2026, 23:19

ER

In a history class of a humanities course, there are N students

655-705 (Hard) | Multiples and Factors, Number Properties

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

amanvermagmat

26 Mar 2018, 00:19

4

5

1,717

by: bumpbot

08 Jan 2026, 23:22

Out of total 36 students in a class, what percent of students passed

805+ (Hard) | Arithmetic, Min-Max Problems

805+ (Hard) | Arithmetic, Min-Max Problems hide tags

amanvermagmat

20 May 2018, 11:24

54

6

6,004

by: bumpbot

13 Dec 2025, 06:58

Mike bought 10 pens, all having distinct prices in integer number of

705-805 (Hard) | Statistics and Sets Problems

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

amanvermagmat

06 Aug 2018, 11:20

14

4

2,966

by: bumpbot

30 Nov 2025, 05:47

Team A played N1 games between January 2017 to June 2017, inclusive -

655-705 (Hard) | Fractions and Ratios +2 tags

655-705 (Hard) | Fractions and Ratios, Percent and Interest Problems, Word Problems hide tags

amanvermagmat

16 May 2018, 11:23

10

4

2,966

by: bumpbot

28 Nov 2025, 08:52

What is the value of (5a - 4b + 10c)/(3b) ? (1) b-a = 2c (2)

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

amanvermagmat

31 May 2018, 22:42

5

4

2,879

by: bumpbot

05 Nov 2025, 05:02

ER

Josh has a big drawer full of 40 packets, each containing a marker

705-805 (Hard) | Min-Max Problems, Word Problems

705-805 (Hard) | Min-Max Problems, Word Problems hide tags

amanvermagmat

22 Mar 2018, 11:01

72

12

6,809

by: bumpbot

29 Oct 2025, 09:56

P, Q, R are three distinct positive numbers. Which is the greatest

805+ (Hard) | Inequalities, Number Properties

805+ (Hard) | Inequalities, Number Properties hide tags

amanvermagmat

17 Mar 2018, 00:25

10

5

3,260

by: bumpbot

20 Oct 2025, 05:42

ER

T1 and T2 are two sets containing integers only. If an integer X is

555-605 (Medium) | Number Properties, Probability

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

amanvermagmat

15 Mar 2018, 23:37

13

3

3,547

by: bumpbot

17 Oct 2025, 00:42

A shop sells all kinds of school lab equipment. One school's admin

705-805 (Hard) | Min-Max Problems, Word Problems

705-805 (Hard) | Min-Max Problems, Word Problems hide tags

amanvermagmat

08 Dec 2018, 22:34

14

4

3,319

by: bumpbot

02 Oct 2025, 22:08

There are two tanks: tank T, and C. Initially both tanks were empty.

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

amanvermagmat

11 May 2018, 01:43

4

2

1,653

by: bumpbot

28 Sep 2025, 10:53

ER

Sam has a drawer full of exactly 59 packets, each containing a marker

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

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

amanvermagmat

22 Mar 2018, 07:33

51

6

6,393

by: Bunuel

23 Sep 2025, 13:12

ER

A family's savings for a month is calculated by subtracting its total

705-805 (Hard) | Arithmetic, Percent and Interest Problems

705-805 (Hard) | Arithmetic, Percent and Interest Problems hide tags

amanvermagmat

21 Jul 2018, 11:03

6

2

2,937

by: bumpbot

17 Sep 2025, 20:36

Jar 1 contains a solution which is 30% nitric acid and 70% water,while

605-655 (Medium) | Mixture Problems

605-655 (Medium) | Mixture Problems hide tags

amanvermagmat

08 May 2018, 23:12

23

5

6,793

by: lily123400

14 Sep 2025, 12:05

ER

20 books, each on a different subject, are placed on a shelf

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

amanvermagmat

24 Feb 2018, 00:12

3

2,853

by: bumpbot

11 Sep 2025, 05:04

ER

Maria drove a distance without stopping such that she covered first

805+ (Hard) | Distance and Speed Problems

805+ (Hard) | Distance and Speed Problems hide tags

amanvermagmat

18 Jul 2018, 00:43

49

14

9,178

by: bumpbot

10 Sep 2025, 05:10

N is a 3 digit positive integer. Is N greater than 350? (1) Hundred's

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

amanvermagmat

25 Jul 2018, 11:06

1

2

1,782

by: bumpbot

09 Sep 2025, 14:32

ER

What is the remainder when X*Y*Z is divided by 12? (1) X, Y, Z are

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

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

amanvermagmat

14 Jan 2019, 22:14

3

1,627

by: bumpbot

25 Aug 2025, 10:06

ER

In a Physics class of a science course, there are N students

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

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

amanvermagmat

26 Mar 2018, 00:41

3

6

1,672

by: bumpbot

22 Aug 2025, 10:51

How many even integers lie between numbers N1 and N2? (1) N2 = 15 +

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

amanvermagmat

13 Jul 2018, 11:09

14

8

3,656

by: Harsh07112001

21 Aug 2025, 04:32

ER

A solution of acid and water is A% acid. Another solution of acid and

705-805 (Hard) | Mixture Problems

705-805 (Hard) | Mixture Problems hide tags

amanvermagmat

25 Nov 2018, 22:24

12

4

4,098

by: Sonatomar

20 Aug 2025, 02:39

In a city, there are 400 people who are member of one or more of three

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

amanvermagmat

04 May 2018, 00:29

9

6

2,807

by: bumpbot

21 Jul 2025, 10:15

ER

If X is a positive integer less than 20, what is the value of X ?

655-705 (Hard) | Multiples and Factors, Number Properties

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

amanvermagmat

07 May 2018, 23:10

5

3

3,801

by: bumpbot

15 Jul 2025, 14:06

ER

A family of 5 people: A, B, C, D, E had an average age of 34 years

605-655 (Medium) | Arithmetic, Word Problems

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

amanvermagmat

02 Mar 2018, 00:06

12

2

3,742

by: PocusFocus

02 Jul 2025, 18:52

7 married couples are sitting in the lounge of a certain

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

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

amanvermagmat

10 Mar 2018, 11:56

6

3

3,136

by: bumpbot

29 Jun 2025, 23:19

ER

Number of chocolates with Daniel is X and the number of chocolates wit

805+ (Hard) | Algebra, Word Problems

805+ (Hard) | Algebra, Word Problems hide tags

amanvermagmat

06 Mar 2018, 21:25

8

12

1,982

by: bumpbot

24 Jun 2025, 12:19

ER

A room contains exactly N people, out of which exactly half are men

505-555 (Easy) | Combinations

505-555 (Easy) | Combinations hide tags

amanvermagmat

20 Nov 2018, 11:08

9

2

3,501

by: bumpbot

18 Jun 2025, 12:08

ER

Exactly 71 people are standing in a single queue

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

amanvermagmat

23 Feb 2018, 11:16

7

2,947

by: bumpbot

04 Jun 2025, 17:29

ER

A, B, C, D, E are five distinct positive multiples of 10 suc

655-705 (Hard) | Min-Max Problems, Statistics and Sets Problems

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

amanvermagmat

15 May 2018, 22:41

13

2

3,045

by: bumpbot

02 Jun 2025, 23:15

ER

Are the integers p, q, r in an arithmetic progression? (1) q = p*r

Poor Quality

Poor Quality hide tags

amanvermagmat

17 Jan 2019, 22:05

7

4

2,510

by: Bunuel

02 Jun 2025, 03:13

In a retail shop, 32% pens are defective, and both defective as well

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

amanvermagmat

12 Jun 2018, 11:11

7

4

3,062

by: Yosemite98

01 Jun 2025, 01:42

Out of three distinct numbers: X, Y, Z - is Y the smallest?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

amanvermagmat

05 Apr 2018, 02:01

5

2

1,784

by: bumpbot

28 May 2025, 08:55

Two soldiers started racing from point P to point Q, a distance of 10

805+ (Hard) | Distance and Speed Problems

805+ (Hard) | Distance and Speed Problems hide tags

amanvermagmat

12 May 2018, 22:52

8

4

2,384

by: bumpbot

18 May 2025, 10:20