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

78,623

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,460

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

487,841

by: bb

29 Aug 2025, 13:27

ER

In how many ways can a coach select a 4-person university team from a

505-555 (Easy) | Combinations +2 tags

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

1, 2

pate13

24 Aug 2015, 17:49

64

22

15,867

by: bumpbot

18 Apr 2025, 05:16

ER

What is the median of a set of seven different positive integers?

705-805 (Hard) | Arithmetic, Statistics and Sets Problems

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

chetan2u

01 Feb 2019, 23:09

6

4

2,819

by: bumpbot

18 Apr 2025, 04:07

ER

In City X last April, was the average (arithmetic mean)

505-555 (Easy) | Statistics and Sets Problems

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

Bunuel

09 Jul 2012, 04:53

117

11

31,395

by: bumpbot

17 Apr 2025, 03:54

ER

A shipping company has two departments, one for standard shipping and

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

20 Nov 2023, 02:30

4

2

2,259

by: bumpbot

16 Apr 2025, 07:54

ER

If the average (arithmetic mean) height of Bob, John and Tom is 180 cm

555-605 (Medium) | Statistics and Sets Problems

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

MathRevolution

02 Aug 2018, 00:39

10

4

2,801

by: bumpbot

16 Apr 2025, 04:34

ER

A furniture manufacturer produced at least 3 cabinets each day for the

705-805 (Hard) | Statistics and Sets Problems

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

gracieguidotti

12 Jan 2024, 09:28

136

7

16,292

by: KarishmaB

15 Apr 2025, 02:29

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A new electric car company holds a limited-time sales event.

805+ (Hard) | Statistics and Sets Problems

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

guerrero25

20 May 2013, 11:18

30

7

6,502

by: bumpbot

11 Apr 2025, 01:59

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If the arithmetic mean of five different numbers is 50, how many of th

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

31 Jan 2019, 01:26

7

4

2,917

by: bumpbot

10 Apr 2025, 06:03

ER

If each of the 8 employees working on a certain project received an

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

Bunuel

09 Apr 2025, 00:30

5

6

980

by: Abhiswarup

09 Apr 2025, 23:19

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What is the median of the nine consecutive even integers in a certain

555-605 (Medium) | Statistics and Sets Problems

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

parkhydel

28 Apr 2020, 05:01

133

19

18,141

by: bumpbot

09 Apr 2025, 10:29

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List A above has 4 numbers and List B above has 5 numbers. What is the

705-805 (Hard) | Statistics and Sets Problems

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

Kritisood

16 Apr 2020, 02:25

6

4

2,021

by: bumpbot

07 Apr 2025, 03:52

ER

If the prices of four of the five books that Ann bought are $4, $6, $1

705-805 (Hard) | Statistics and Sets Problems, Word Problems

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

Bhide

26 Dec 2023, 23:55

152

10

15,983

by: NEYR0N

05 Apr 2025, 04:54

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The arithmetic mean of a collection of 5 positive integers, not necess

555-605 (Medium) | Statistics and Sets Problems

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

Carcass

26 Jul 2017, 11:52

77

12

25,806

by: bumpbot

31 Mar 2025, 00:11

A bookstore customer bought 3 books at different prices, and the

555-605 (Medium) | Statistics and Sets Problems

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

guddo

24 Jan 2024, 03:57

8

3

4,140

by: bumpbot

30 Mar 2025, 00:01

a, b, and c are positive integers such that a+b+c=5. What is the media

655-705 (Hard) | Statistics and Sets Problems

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

TheUltimateWinner

20 Aug 2019, 10:30

3

2

1,794

by: bumpbot

28 Mar 2025, 21:15

ER

Is the standard deviation of numbers x, y, and z, positive?

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

18 Jul 2018, 03:38

31

6

5,457

by: bumpbot

28 Mar 2025, 17:17

ER

A set of five distinct positive integers has a median of 3 and a range

705-805 (Hard) | Multiples and Factors +2 tags

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

rakshitsood

05 Jun 2020, 11:34

26

4

3,890

by: bumpbot

27 Mar 2025, 03:25

ER

Is the average score of the students in the 3 classes together equal

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

18 May 2022, 04:00

8

2

1,673

by: bumpbot

26 Mar 2025, 12:17

ER

Set S consists of n consecutive integers, where n > 1. What is the

805+ (Hard) | Number Properties, Statistics and Sets Problems

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

Bunuel

04 Jun 2015, 04:22

34

10

9,255

by: bumpbot

24 Mar 2025, 23:37

ER

If there are more than two numbers in a certain list, is each of the

605-655 (Medium) | Statistics and Sets Problems

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

devinawilliam83

27 Aug 2018, 05:49

305

19

63,147

by: NamDuong

22 Mar 2025, 01:57

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The range for a list of measurements equals the greatest measurement

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

Sallyzodiac

06 May 2016, 09:08

71

12

30,567

by: bumpbot

19 Mar 2025, 23:49

ER

The table shows the distribution of scores on a typing test for

555-605 (Medium) | Statistics and Sets Problems

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

guddo

24 Jan 2024, 01:09

20

4

6,001

by: GMATinsight

19 Mar 2025, 23:17

ER

The average age of children on a certain playground is 3.7 years.

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

15 Nov 2024, 01:30

2

1,129

by: saynchalk

16 Mar 2025, 05:54

ER

What is the average production cost of a single x-car?

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

Bunuel

29 Oct 2024, 01:30

1

1,581

by: Karanjotsingh

16 Mar 2025, 05:40

ER

If set S = {7, y, 12, 8, x, 9}, is x + y less than 18?

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

14 Oct 2014, 06:11

26

7

9,664

by: bumpbot

14 Mar 2025, 10:06

ER

Of the 200 numbers, 76% are less than or equal to 80. Is the median nu

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

15 Oct 2021, 01:30

10

3

2,706

by: bumpbot

13 Mar 2025, 15:23

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10, 3, 12, 5, 6, x What is the value of x in the above set of number

655-705 (Hard) | Statistics and Sets Problems

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

nislam

16 Dec 2021, 10:35

5

3

1,878

by: iamjatinagrawal

13 Mar 2025, 01:00

ER

If M is a set of five numbers p, q, r, s, and t, is the range of numbe

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

30 Aug 2016, 05:25

3

3,842

by: bumpbot

12 Mar 2025, 04:50

ER

If set N contains only consecutive positive integers, what

555-605 (Medium) | Statistics and Sets Problems

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

christoph

12 Oct 2013, 17:28

21

12

7,069

by: bumpbot

11 Mar 2025, 20:27

ER

The average price of three stocks is $25 per share. Is the stock that

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

27 Oct 2024, 10:59

2

1,018

by: GMATinsight

11 Mar 2025, 04:11

ER

Set m consists of 100 numbers, with the standard deviation of 10 and t

655-705 (Hard) | Statistics and Sets Problems

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

RenB

19 May 2023, 22:07

15

4

3,427

by: Bunuel

06 Mar 2025, 01:53

ER

S is a set of positive integers. The average of the terms in

705-805 (Hard) | Statistics and Sets Problems

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

1, 2

rohitgarg

07 Nov 2013, 11:43

79

20

22,115

by: bumpbot

05 Mar 2025, 22:34

ER

Ann, Beth, and Steve each spent some amount of time

555-605 (Medium) | Statistics and Sets Problems

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

gmat2324

30 Jun 2024, 14:35

33

7

6,584

by: ManifestDreamMBA

05 Mar 2025, 08:19

ER

If m is a positive odd integer, what is the average (arithmetic mean)

555-605 (Medium) | Statistics and Sets Problems

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

rigger

17 Oct 2019, 04:52

66

9

22,191

by: bumpbot

04 Mar 2025, 11:30

ER

For S, a set of five integers, is the mean of the set an integer in S?

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

20 Jul 2020, 02:56

17

5

5,008

by: bumpbot

04 Mar 2025, 07:09

ER

What is the value of x in the list {36, 47, 51, 65, x}?

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

20 Jun 2023, 06:00

5

3

1,745

by: Bunuel

03 Mar 2025, 00:01

ER

If x and y are unknown positive integers, is the mean of the list {6,

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

17 Jan 2020, 02:45

28

8

12,922

by: bumpbot

02 Mar 2025, 19:25

ER

Is the average (arithmetic mean) of 5 different positive integers at

555-605 (Medium) | Statistics and Sets Problems

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

piyushksharma

07 May 2012, 08:55

153

16

63,376

by: bumpbot

02 Mar 2025, 08:34

ER

What is the standard deviation of 3 products’ prices?

555-605 (Medium) | Statistics and Sets Problems

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

MathRevolution

18 Nov 2016, 01:24

15

5

5,198

by: bumpbot

27 Feb 2025, 08:37

ER

If the average (arithmetic mean) of four different positive integers

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

06 Oct 2021, 01:30

6

4

6,273

by: bumpbot

23 Feb 2025, 04:57

ER

What is the average (arithmetic mean) of a, b, c and d?

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

08 Apr 2022, 01:30

4

3

6,835

by: bumpbot

20 Feb 2025, 12:33

ER

In the list of numbers {a, b, c}, a is the average (arithmetic mean)

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

23 Mar 2020, 06:40

13

8

3,217

by: bumpbot

10 Feb 2025, 10:43

ER

Is the average age of the students taking SAT greater than 22?

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

05 Feb 2025, 01:30

5

3

1,557

by: Whoisdmx15

05 Feb 2025, 04:31

ER

In a class test, the median score is 50. what percent of the students

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

17 Nov 2021, 08:30

3

2

3,396

by: anirchat

05 Feb 2025, 02:30

ER

Ten pressure measurements were taken for the liquid flowing through a

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

27 Dec 2023, 02:30

10

2

2,028

by: bumpbot

04 Feb 2025, 10:21

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

1,739

by: bumpbot

02 Feb 2025, 07:37

ER

Set S has six numbers and their average (arithmetic mean) is 32. What

655-705 (Hard) | Statistics and Sets Problems

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

MathRevolution

03 May 2017, 02:29

18

7

3,836

by: anirchat

02 Feb 2025, 07:19

ER

Jerry bought 7 clothing items, including a coat, and the sum

505-555 (Easy) | Statistics and Sets Problems, Word Problems

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

gayathriz

11 Jun 2013, 06:24

34

4

17,628

by: werty_123

01 Feb 2025, 23:58

ER

Students in five sections, F, G, H, J and K, of an introductory accoun

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

20 May 2018, 13:19

2

5

2,255

by: anirchat

01 Feb 2025, 03:01

ER

Set K consists of 4 integers. What is the median of K?

605-655 (Medium) | Statistics and Sets Problems

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

akhil911

29 Nov 2014, 02:28

30

13

10,231

by: bumpbot

31 Jan 2025, 10:26