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

178

15

79,033

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,703

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

488,235

by: bb

29 Aug 2025, 13:27

ER

There are N men in a group. Their average age is 20 years. Find N.

805+ (Hard) | Statistics and Sets Problems

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

Mesto

24 Feb 2016, 10:29

24

9

11,767

by: bumpbot

23 Apr 2024, 03:04

ER

There are n people standing on line L. What is the value of n?

Sub 505 (Easy) | Combinations

Sub 505 (Easy) | Combinations hide tags

Bunuel

20 Jan 2015, 07:16

9

3

11,800

by: bumpbot

23 Feb 2022, 03:26

ER

There are n students in a class. Of them, k boys and k girls (includin

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

29 Jan 2015, 08:25

44

17

12,639

by: bumpbot

05 Feb 2025, 04:08

ER

There are only apples and oranges in a box. What is the probability

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

Bunuel

01 Sep 2023, 01:30

5

2

2,914

by: bumpbot

29 Jul 2025, 00:30

ER

There are only three kinds of books on a bookshelf, science book

505-555 (Easy) | Fractions and Ratios

505-555 (Easy) | Fractions and Ratios hide tags

Bunuel

18 Apr 2024, 01:30

4

1

1,381

by: Nidzo

18 Apr 2024, 04:41

ER

There are only whisky bottles and vodka bottles on a table, and the to

555-605 (Medium) | Algebra, Word Problems

555-605 (Medium) | Algebra, Word Problems hide tags

Bunuel

21 Dec 2018, 06:22

2

3

1,891

by: bumpbot

29 Jun 2022, 07:10

ER

There are red, yellow, and blue marbles in a bag of 50 marbles. If Mar

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

07 Apr 2016, 08:41

4

6,045

by: bumpbot

20 May 2024, 04:25

ER

There are seven team and each team has to play with three other teams

805+ (Hard) | Combinations

805+ (Hard) | Combinations hide tags

GMATBusters

27 Oct 2018, 10:18

27

4

4,894

by: bumpbot

06 Aug 2025, 02:59

ER

There are six cards numbered from 1 to 6 in a box. Three cards are pic

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

07 Feb 2021, 15:50

6

2

3,491

by: bumpbot

11 Jul 2025, 15:31

ER

There are six consecutive positive integers in Set S. What

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

corvinis

27 Aug 2012, 15:30

72

9

10,711

by: Rutvik15

26 Jun 2024, 05:11

There are some boys and girls present in a class apart from teacher,

555-605 (Medium) | Arithmetic, Combinations

555-605 (Medium) | Arithmetic, Combinations hide tags

amanvermagmat

05 Jun 2018, 11:52

21

2

6,038

by: bumpbot

14 Nov 2023, 07:19

ER

There are some oranges and apples in a basket. After additional 4 and

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

27 Dec 2022, 10:00

2

2,114

by: Bunuel

07 Jan 2023, 08:30

ER

There are three boxes labelled A, B and C having a total weight of 150

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

aa008

02 Dec 2018, 23:42

11

7

7,885

by: bumpbot

11 Feb 2026, 10:18

ER

There are three circles, with radii 2, 4 and 5, respectively

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

guerrero25

15 Jun 2013, 13:26

17

9

6,532

by: bumpbot

26 Mar 2023, 11:57

ER

There are three different ways to score in basketball. A successful

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

27 Jun 2024, 01:30

42

10

7,628

by: bumpbot

23 Apr 2026, 08:45

ER

There are three times as many hot dogs as pizzas and five times as man

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

08 Feb 2024, 02:30

3

1

2,225

by: Shubhradeep

08 Feb 2024, 12:53

There are three types of Chandeliers hung in a party hall: A, B and C.

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

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

amanvermagmat

18 May 2018, 11:48

28

5

4,562

by: bumpbot

09 Nov 2024, 07:43

There are three varieties of sugar in a store. Sugar (S1)

605-655 (Medium) | Mixture Problems

605-655 (Medium) | Mixture Problems hide tags

GMATBaumgartner

29 Oct 2012, 05:51

109

11

19,567

by: bumpbot

28 Dec 2025, 08:29

ER

There are total of 20 balls, and the balls each have a number from 1

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

11 Apr 2025, 00:30

4

5

938

by: bhargavhhhhhhhh

11 Apr 2025, 23:20

ER

There are twenty students in a class, all of whom scored between 0 and

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

01 Jul 2018, 20:56

7

5

7,961

by: bumpbot

18 May 2021, 10:38

ER

There are two boxes of markers.The first box has only red

Poor Quality

Poor Quality hide tags

Manik12345

07 Jun 2014, 01:28

2

7

7,805

by: Manik12345

09 Jun 2014, 01:21

ER

There are two classrooms A and B. The sum of the number of students in

705-805 (Hard) | Inequalities, Word Problems

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

Bunuel

29 May 2020, 03:24

13

6

3,156

by: bumpbot

17 Aug 2023, 21:46

ER

There are two cylinders of different volume

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Kaushik786

17 Mar 2021, 23:06

2

1,081

by: chetan2u

18 Mar 2021, 00:05

ER

There are two kinds of books on the bookshelf: Spanish and English. If

655-705 (Hard) | Fractions and Ratios

655-705 (Hard) | Fractions and Ratios hide tags

Bunuel

03 Sep 2022, 04:43

5

2

3,119

by: bumpbot

23 Oct 2023, 12:10

ER

There are two lines at an airline ticket counter. The first line conta

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

23 Feb 2022, 02:30

1

1,308

by: kungfury42

23 Feb 2022, 02:46

ER

There are two major statues in Tasmanian County; the first is no more

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

19 Nov 2025, 23:16

5

4

667

by: Dereno

20 Nov 2025, 11:36

ER

There are two sets of numbers Set A and Set B. Is the average of

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

30 Aug 2023, 01:30

7

2

1,690

by: bumpbot

21 Oct 2024, 11:29

ER

There are two solutions, A and B of spirit and water. The ratio of spi

605-655 (Medium) | Mixture Problems

605-655 (Medium) | Mixture Problems hide tags

Bunuel

28 Sep 2021, 01:30

27

5

6,617

by: Samiksha2610

29 Jul 2025, 06:47

ER

There are two tall buildings in Cloverdale, the bank and the courthous

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

04 Aug 2023, 01:30

1

1,952

by: stne

05 Aug 2023, 06:53

ER

There are two tanks A, B. After 100 litres of water

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

itisSheldon

06 Mar 2018, 04:16

16

8

3,252

by: bumpbot

24 Apr 2025, 07:22

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

1,620

by: bumpbot

28 Sep 2025, 10:53

ER

There are two types of rolls on a counter, plain rolls and seeded roll

Sub 505 (Easy) | Algebra, Word Problems

Sub 505 (Easy) | Algebra, Word Problems hide tags

prav04

06 Dec 2018, 08:34

4

6

6,147

by: bumpbot

20 Feb 2022, 06:33

ER

There are x and y number of integers respectively in Set X and Set Y,

705-805 (Hard) | Number Properties, Overlapping Sets

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

chetan2u

25 Mar 2016, 05:34

17

8

3,535

by: bumpbot

26 Oct 2023, 02:33

ER

There are x children and y chairs arranged in a circle in a room where

555-605 (Medium) | Combinations

555-605 (Medium) | Combinations hide tags

Bunuel

29 Mar 2021, 00:21

61

12

10,612

by: bumpbot

06 Jul 2025, 02:30

ER

There are X dogs in the dog hound, each dog eats Y Kg of food every da

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

14 Jul 2016, 01:59

10

8

3,594

by: bumpbot

10 Aug 2025, 05:44

ER

There are x high-level officials (where x is a positive integer). Each

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

03 Nov 2014, 09:15

26

13

10,433

by: bumpbot

24 Jun 2025, 11:02

ER

There are x people and y chairs in a room where x and y are

805+ (Hard) | Combinations

805+ (Hard) | Combinations hide tags

JusTLucK04

23 Apr 2014, 10:00

242

18

36,354

by: Bunuel

28 Dec 2025, 23:20

ER

There is a certain number of students in Mr. Stewarts class. Could Mr

705-805 (Hard) | Multiples and Factors, Word Problems

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

Bunuel

20 Feb 2023, 07:37

4

3,135

by: Bunuel

22 Aug 2024, 00:22

There is a cistern with a capacity C. how many pipes

Poor Quality

Poor Quality hide tags

tanu11

08 Oct 2020, 03:53

3

2

1,014

by: Target4bschool

09 Oct 2020, 02:31

There is a company X that does not elect employees who are under 20 ye

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Poor Quality hide tags

BillyZ

09 Mar 2017, 22:38

10

7

3,167

by: bobby200

04 Apr 2017, 07:26

ER

There is a n-polygon, what is the value of n?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

MathRevolution

18 Feb 2016, 18:56

8

7

2,866

by: MathRevolution

14 Aug 2017, 11:03

ER

There is a sequence such that an = a(n-2) + 12, where n is an integer

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Bunuel

15 Nov 2019, 02:35

15

2

3,291

by: bumpbot

19 Apr 2024, 08:17

ER

There is a sequence, 4(10^n), 4(10^(n-1)), ..., 4(10^(n-m)), for posit

805+ (Hard) | Number Properties, Sequences

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

Bunuel

20 Dec 2015, 06:37

69

12

13,728

by: bumpbot

15 Apr 2026, 06:06

ER

There is a set of beads, each of which is painted either red or blue.

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Bunuel

17 Jan 2020, 02:16

8

2

3,806

by: bumpbot

22 Apr 2025, 18:49

ER

There is a set of consecutive even integers. What is the

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

Jinglander

10 Aug 2010, 08:20

54

10

10,346

by: bumpbot

25 Jul 2025, 11:43

ER

There is a set of numbers 2, 4, 6, 8,10 and x. What is the value of x?

555-605 (Medium) | Statistics and Sets Problems

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

Bounce1987

15 Sep 2017, 15:12

13

12

6,010

by: dbcoupie123

05 Feb 2023, 10:45

ER

There is a total of 400 students. 310 students participated in A, and

555-605 (Medium) | Statistics and Sets Problems

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

MathRevolution

06 Jun 2017, 02:37

2

2,148

by: MathRevolution

08 Jun 2017, 00:52

ER

There is a triangle ACE shown as above figure. what is the measurement

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

MathRevolution

01 Jun 2016, 18:12

8

3

2,599

by: bumpbot

07 Apr 2022, 19:07

ER

There is an arithmetic sequence An where n is a positive integer such

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

MathRevolution

08 Nov 2016, 02:15

11

8

4,079

by: bumpbot

03 Jul 2025, 05:08

ER

There is an equation: x^3-ax^2+bx-5=0, a and b are positive integers,

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

MathRevolution

02 Mar 2016, 00:36

6

4

3,436

by: chetan2u

17 Nov 2022, 20:25