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

79,471

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

858

24

188,940

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

488,619

by: bb

29 Aug 2025, 13:27

ER

A series of 5 numbers is 3, 4, 5, 5, x, is the range greater than 2?

805+ (Hard) | Statistics and Sets Problems

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

144144

06 Jun 2011, 11:53

15

6

5,817

by: bumpbot

17 May 2026, 04:10

If a, b, c, d are four integers such that a < b < c < d, Is d-c = c-b

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

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

amanvermagmat

28 Jun 2018, 11:41

7

3

2,617

by: bumpbot

17 May 2026, 04:00

In an election four parties A, B, C and D contested for a post. 40% of

705-805 (Hard) | Statistics and Sets Problems

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

Adityachopra1

05 Aug 2023, 00:35

2

4

2,070

by: bumpbot

17 May 2026, 01:51

ER

Q is a set of integers and 11 is in Q. Let Q denote any element in the

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

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

Bunuel

30 Jun 2022, 15:15

4

2

1,532

by: bumpbot

17 May 2026, 01:48

ER

Are at least 80 percent of the people in Country X

605-655 (Medium) | Statistics and Sets Problems, Word Problems

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

metallicafan

30 Apr 2012, 18:18

23

8

8,462

by: bumpbot

15 May 2026, 03:22

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If 0 < a < b < c, does the median of a, b, and c equal the mean of a,

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

13 Apr 2018, 01:21

10

6

2,700

by: bumpbot

15 May 2026, 02:42

ER

At a science quiz, Team Atlas consisted of Elena, Hugo, and Liam, and

555-605 (Medium) | Statistics and Sets Problems, Word Problems

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

Bunuel

14 May 2026, 19:00

1

2

111

by: SS990

14 May 2026, 23:05

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Yesterday Bookstore B sold twice as many softcover books as hardcover

805+ (Hard) | Statistics and Sets Problems, Word Problems

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

1, 2

parkhydel

28 Apr 2020, 04:59

428

21

40,343

by: Bunuel

14 May 2026, 12:12

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A certain ski shop sold 125 pairs of skis and 100 pairs of ski boots

Sub 505 (Easy) | Statistics and Sets Problems, Word Problems

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

parkhydel

28 Apr 2020, 04:50

22

4

10,706

by: Bunuel

14 May 2026, 11:40

ER

A certain company consists of three divisions, A, B, and C. Of the emp

605-655 (Medium) | Statistics and Sets Problems, Word Problems

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

parkhydel

28 Apr 2020, 04:47

177

19

26,203

by: Bunuel

14 May 2026, 11:19

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In a survey report, each surveyed man was assigned a gender code of

555-605 (Medium) | Statistics and Sets Problems

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

Raxit85

10 Feb 2020, 23:03

1

3

2,326

by: bumpbot

14 May 2026, 08:11

ER

If B is a set of real numbers, is there a number in B that

655-705 (Hard) | Statistics and Sets Problems

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

battleprof

23 Apr 2013, 09:46

11

17

8,787

by: bumpbot

13 May 2026, 08:02

ER

A warehouse manager recorded the weights of all the crates in one

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

10 May 2026, 19:00

3

5

187

by: Adit_

11 May 2026, 07:32

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Of the 5 numbers, the largest number is 4 greater than the median. Is

805+ (Hard) | Statistics and Sets Problems

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

amijags

10 Aug 2010, 03:05

46

7

8,501

by: bumpbot

11 May 2026, 05:25

ER

At a food bank, volunteers packed delivery boxes in only two sizes

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

07 May 2026, 19:00

4

3

247

by: Bunuel

10 May 2026, 04:15

ER

A community center recorded the number of evening workshops it held in

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

07 May 2026, 19:00

2

3

233

by: Bunuel

10 May 2026, 03:00

ER

At a home decor shop, 12 lamps were on display on Sunday evening, and

555-605 (Medium) | Percent and Interest Problems +2 tags

555-605 (Medium) | Percent and Interest Problems, Statistics and Sets Problems, Word Problems hide tags

Bunuel

06 May 2026, 19:00

3

249

by: Bunuel

10 May 2026, 01:15

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Is the range of numbers {a, b, c, d, e} greater than 10?

555-605 (Medium) | Statistics and Sets Problems

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

whiplash2411

11 Oct 2010, 14:50

8

7

4,421

by: bumpbot

09 May 2026, 22:02

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If the mean of set S is 20, what is the median of set S ?

805+ (Hard) | Statistics and Sets Problems

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

vijaisingh2001

24 Feb 2017, 10:03

52

4

7,066

by: bumpbot

09 May 2026, 11:01

ER

List A is split into two sub-lists B and C. All the elements of list B

605-655 (Medium) | Statistics and Sets Problems

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

RenB

11 Aug 2023, 21:58

5

2

2,196

by: bumpbot

07 May 2026, 22:05

ER

The twelve numbers shown represent, the ages, in years, of the twelve

505-555 (Easy) | Statistics and Sets Problems

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

Bunuel

10 May 2026, 12:42

5

4

6,466

by: bumpbot

07 May 2026, 08:11

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Consider this set of 5 Integers. {7, C, A, T, 23} What is the Sum of

555-605 (Medium) | Statistics and Sets Problems

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

sandykathuria3

29 Nov 2019, 11:19

4

7

1,528

by: bumpbot

07 May 2026, 07:03

ER

If the average (arithmetic mean) of four numbers is 10, how many of

705-805 (Hard) | Statistics and Sets Problems

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

AverageGuy123

27 Feb 2015, 21:22

23

6

15,180

by: bumpbot

06 May 2026, 00:44

ER

In four production runs (Runs 1 to 4), a quality inspector found

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

26 Apr 2026, 14:00

6

5

573

by: Bunuel

05 May 2026, 11:02

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

141

8

16,507

by: bumpbot

05 May 2026, 10:52

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A neighborhood library purchased 45 paperback copies of a novel at an

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

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

Bunuel

29 Apr 2026, 19:00

4

267

by: Bunuel

02 May 2026, 01:30

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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

1, 2

devinawilliam83

27 Aug 2018, 05:49

310

20

63,466

by: bumpbot

01 May 2026, 09:02

ER

At a small architecture firm, the average (arithmetic mean) age of the

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

23 Apr 2026, 19:00

2

4

250

by: Bunuel

30 Apr 2026, 04:15

ER

During a wedding season, two event venues, Cedar Hall and Willow Hall

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

22 Apr 2026, 19:00

3

4

258

by: Bunuel

30 Apr 2026, 01:00

ER

Q is the set of all integers between A and B, inclusive, where A is an

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

02 May 2021, 00:45

7

4

1,909

by: bumpbot

29 Apr 2026, 07:10

ER

A courier company assigned each of its drivers to exactly one of three

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

21 Apr 2026, 19:00

2

5

294

by: Bunuel

29 Apr 2026, 01:15

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

158

11

16,299

by: bumpbot

28 Apr 2026, 01:42

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

5

2

2,397

by: bumpbot

27 Apr 2026, 09:20

ER

Set S consists of n numbers arranged in ascending order. A

605-655 (Medium) | Statistics and Sets Problems

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

dancinggeometry

05 Sep 2008, 21:59

19

13

11,493

by: bumpbot

23 Apr 2026, 07:05

ER

On a fishing expedition, a group of 13 fishermen caught a total of 160

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

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

shasadou

02 Apr 2016, 03:59

82

16

17,307

by: KarishmaB

23 Apr 2026, 02:46

ER

At a farmers market, Mia, Leo, and Owen each bought some oranges.

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

16 Apr 2026, 19:00

2

3

300

by: Bunuel

23 Apr 2026, 01:45

ER

If s is the sequence of more than two observations

805+ (Hard) | Statistics and Sets Problems

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

PyjamaScientist

03 Oct 2021, 00:30

16

3

1,912

by: bumpbot

23 Apr 2026, 01:37

ER

A set consists of n distinct integers arranged in the order of increas

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

29 May 2020, 02:06

18

11

3,726

by: bumpbot

23 Apr 2026, 01:31

ER

The average (arithmetic mean) of a list of positive numbers is what

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

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

Bunuel

07 Nov 2017, 23:25

38

8

8,842

by: bumpbot

21 Apr 2026, 08:50

ER

A set of data consists of 4 integers. What is the standard

705-805 (Hard) | Statistics and Sets Problems

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

nusmavrik

24 Aug 2010, 01:28

29

7

8,815

by: bumpbot

21 Apr 2026, 01:19

ER

Cedar Court and Maple Court have the same number of occupied apartment

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

12 Apr 2026, 19:00

5

6

348

by: DropletMaverick

21 Apr 2026, 01:12

ER

If there are only girl students in a class, is the number of students

805+ (Hard) | Statistics and Sets Problems, Word Problems

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

chetan2u

16 Oct 2017, 04:17

13

6

2,987

by: bumpbot

20 Apr 2026, 03:01

ER

R = {223, 225, 227, 229, 231, 233, 235, 237} Given Set R, Set S is fo

705-805 (Hard) | Statistics and Sets Problems

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

Sajjad1994

14 Aug 2019, 03:28

6

2

1,743

by: bumpbot

19 Apr 2026, 03:42

ER

For a certain exam, was the standard deviation of the scores

605-655 (Medium) | Statistics and Sets Problems

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

gmat1220

09 May 2011, 00:12

85

11

11,703

by: bumpbot

18 Apr 2026, 23:38

ER

For a certain set of z numbers, where z > 1, is the average (arithmeti

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

08 Jan 2018, 07:39

2

1,556

by: bumpbot

17 Apr 2026, 03:47

ER

Set X consists of exactly four distinct integers that are greater than

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

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

Sajjad1994

29 Oct 2020, 12:02

16

4

3,253

by: bumpbot

17 Apr 2026, 00:52

ER

The greatest of M integers is 400. The least of N integers is 475. Wha

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

13 Apr 2018, 01:19

5

4

1,756

by: bumpbot

16 Apr 2026, 10:56

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

1,213

by: bumpbot

16 Apr 2026, 07:19

ER

A bakery packed 150 dessert boxes in two batches. Each box contained

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

08 Apr 2026, 19:00

4

3

313

by: Bunuel

16 Apr 2026, 02:45

ER

The GMAT is scored on a scale of 200 to 800 in 10 point incr

805+ (Hard) | Statistics and Sets Problems, Word Problems

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

1, 2

enigma123

15 Apr 2026, 11:36

399

22

35,506

by: bumpbot

15 Apr 2026, 18:52