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

175

15

78,533

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

188,419

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

487,759

by: bb

29 Aug 2025, 13:27

In a given month, a lawyer charged his clients at an average rate of

655-705 (Hard) | Statistics and Sets Problems

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

runkun

05 Jul 2015, 11:33

7

5

3,252

by: bumpbot

10 Dec 2025, 21:14

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If x is an integer, is the median of 5 numbers shown greater than the

655-705 (Hard) | Statistics and Sets Problems

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

getzgetzu

28 Apr 2006, 00:06

406

16

82,476

by: bumpbot

10 Dec 2025, 01:49

ER

In a certain list of numbers, the greatest number is 100. Is the

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

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

draditya

06 Oct 2015, 10:22

44

4

10,672

by: bumpbot

09 Dec 2025, 08:29

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If the median of the set S is 15 then find the Range of the set 1) Se

605-655 (Medium) | Statistics and Sets Problems

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

GMATinsight

10 Jun 2017, 04:32

8

2

2,397

by: bumpbot

09 Dec 2025, 05:06

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Set S contains five distinct positive integers, each of which is great

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

03 Apr 2020, 02:46

19

7

4,631

by: bumpbot

08 Dec 2025, 07:38

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23 students appeared for the Geography paper. What is the sum of marks

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

21 Nov 2019, 03:28

13

3

3,506

by: bumpbot

06 Dec 2025, 13:40

ER

Let S be a set of outcomes and let A and B be events with outcomes in

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

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

1, 2

gmatt1476

21 Sep 2019, 15:28

590

20

38,108

by: Bunuel

06 Dec 2025, 06:21

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Is the median of three numbers x, y, z equal to y?

655-705 (Hard) | Statistics and Sets Problems

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

Navneetsingh

29 Oct 2019, 08:36

19

14

5,380

by: whatsinthename1

06 Dec 2025, 00:24

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A chocolate store has n boxes, and each box has a distinct number of c

655-705 (Hard) | Statistics and Sets Problems

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

RenB

08 Aug 2023, 18:04

9

7

2,745

by: pappal

05 Dec 2025, 13:32

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If x > 1, is the average (arithmetic mean) of a set of x numbers equal

605-655 (Medium) | Statistics and Sets Problems

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

CAMANISHPARMAR

08 May 2019, 07:43

10

4

4,559

by: bumpbot

05 Dec 2025, 02:30

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If the standard deviation of Set Y is 4, what are the

505-555 (Easy) | Statistics and Sets Problems

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

oss198

03 Aug 2014, 15:52

32

6

11,526

by: bumpbot

05 Dec 2025, 02:19

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If all the employees of a company fall into one and only one of 3

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

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

Bunuel

23 May 2020, 07:55

32

6

11,291

by: nhiny1023

03 Dec 2025, 00:16

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On Jane's credit card account, the average daily balance for 30-day

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

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

anilnandyala

07 Jun 2019, 04:04

418

18

51,721

by: ExpertsGlobal5

30 Nov 2025, 22:26

There are five homes. If the median price of a home is $200,000

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

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

itisSheldon

28 Mar 2018, 07:18

76

8

10,492

by: bumpbot

30 Nov 2025, 21:58

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

2,909

by: bumpbot

30 Nov 2025, 05:47

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Set V consists of 2 distinct positive values. What is the standard dev

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

01 Nov 2019, 07:53

47

7

6,969

by: bumpbot

30 Nov 2025, 05:33

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If x is a positive integer, is the mean of set S greater tha

655-705 (Hard) | Statistics and Sets Problems

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

Millis79

05 Apr 2014, 02:08

53

5

11,530

by: whatsinthename1

30 Nov 2025, 05:22

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Set S contains N integers. Is S a set of distinct consecutive integers

655-705 (Hard) | Statistics and Sets Problems

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

d999

27 Jun 2020, 06:09

17

12

4,305

by: bumpbot

29 Nov 2025, 00:39

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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

171

17

26,004

by: gmatftw777

28 Nov 2025, 02:29

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The average monthly income of 14 younger workers is X, Together with

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

24 Jul 2025, 22:00

8

4

1,160

by: mattisweb

27 Nov 2025, 10:49

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What is the average (arithmetic mean) age of all students in the city'

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

13 Sep 2009, 11:07

57

8

16,204

by: bumpbot

27 Nov 2025, 03:45

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What is the standard deviation of set M? (1) Set M contains 17 terms.

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

18 Mar 2022, 01:30

15

2

3,366

by: bumpbot

26 Nov 2025, 08:46

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If every term of Set S is defined as S_n=S_{n–1}+3, what is the median

655-705 (Hard) | Statistics and Sets Problems

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

EncounterGMAT

24 Sep 2019, 12:47

2

1,499

by: bumpbot

25 Nov 2025, 11:26

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If the elements of set X are a, b, c and d, is the average (arithmetic

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

17 Nov 2023, 07:13

9

4

1,846

by: bumpbot

25 Nov 2025, 10:21

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find the value of x? 1) The SD of set {1, 2, 3, 4, 5} remains same af

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

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

GMATinsight

13 Mar 2022, 04:01

5

4

1,684

by: Bunuel

25 Nov 2025, 10:05

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GMAT Club Olympics 2024 (Day 7): At the Olympic Games, 10 gymnasts

655-705 (Hard) | Statistics and Sets Problems

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

1, 2

Bunuel

16 Jul 2024, 07:00

52

22

7,734

by: JAMOO

24 Nov 2025, 23:14

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Set S = {4, x, 1, 4, 1} Is x the median of Set S?

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

02 Feb 2017, 11:08

6

2,734

by: Bunuel

24 Nov 2025, 22:44

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If the average (arithmetic mean) of 5 different numbers is 12, what is

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

12 Nov 2017, 23:49

12

4

11,075

by: bumpbot

24 Nov 2025, 12:41

ER

The level of nitrates was measured and recorded for 10 water samples

655-705 (Hard) | Statistics and Sets Problems

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

guddo

24 Jan 2024, 02:09

71

9

13,541

by: Bunuel

24 Nov 2025, 04:37

ER

At a movie theater, the total revenue from selling two types of...

705-805 (Hard) | Statistics and Sets Problems

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

ElenaFerrante

14 Nov 2025, 00:17

2

535

by: 3ammuse

24 Nov 2025, 00:54

ER

If S is a finite set of consecutive even numbers, is the median of S

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

20 Jan 2015, 07:12

49

17

9,912

by: Bunuel

23 Nov 2025, 04:48

ER

If 5 different positive integers have 3 as its median, is the average

655-705 (Hard) | Statistics and Sets Problems

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

MathRevolution

01 Dec 2016, 02:03

7

5

3,088

by: bumpbot

22 Nov 2025, 07:12

ER

The Discreet Charm of the DS

655-705 (Hard) | Absolute Values +9 tags

655-705 (Hard) | Absolute Values, Algebra, Arithmetic, Fractions and Ratios, Functions and Custom Characters, Inequalities, Number Properties, Statistics and Sets Problems, Word Problems, Work and Rate Problems hide tags

1, 2, 3

Bunuel

02 Feb 2012, 04:15

1.2k

53

191,236

by: Bunuel

22 Nov 2025, 00:33

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If a, b, c, d, e and f are integers, is their median greater than

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

30 Sep 2023, 05:15

6

3

1,691

by: bumpbot

21 Nov 2025, 09:30

ER

Find the average of x consecutive numbers in set S? 1) The 12th larges

655-705 (Hard) | Statistics and Sets Problems

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

GMATinsight

02 Mar 2025, 11:10

8

3

1,960

by: pappal

19 Nov 2025, 10:21

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Is the average (arithmetic mean) of w, x, y, and z less than 28?

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

13 Dec 2019, 00:05

21

11

7,988

by: bumpbot

19 Nov 2025, 01:50

ER

The table above shows a frequency chart for the scores on a certain

605-655 (Medium) | Statistics and Sets Problems

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

XimeSol

12 Nov 2024, 02:01

84

6

14,772

by: bumpbot

18 Nov 2025, 11:10

ER

X is a set containing 7 different numbers. Y is a set containing 6 dif

705-805 (Hard) | Statistics and Sets Problems

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

GGMU

17 Nov 2025, 23:05

38

6

14,472

by: Bunuel

17 Nov 2025, 23:05

ER

What is the variance of set X, which contains only consecutive even in

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

05 Aug 2021, 01:30

13

5

2,879

by: Bunuel

17 Nov 2025, 08:57

After the fourth 100-point test in their economics class, LaRae and An

555-605 (Medium) | Statistics and Sets Problems

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

guddo

24 Jan 2024, 03:30

6

2

4,365

by: bumpbot

17 Nov 2025, 02:40

ER

A list contains twenty integers, not necessarily distinct.

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

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

honchos

24 Jun 2014, 09:17

172

19

22,236

by: bumpbot

15 Nov 2025, 20:47

ER

In one year 2, 100 malpractice claims were filed with insurance compan

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

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

Bunuel

14 Aug 2024, 02:57

40

5

12,353

by: bumpbot

14 Nov 2025, 19:32

ER

Given the ascending set of positive integers {a, b, c, d, e,

605-655 (Medium) | Statistics and Sets Problems

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

siddhans

20 Jun 2011, 22:32

60

11

23,101

by: bumpbot

14 Nov 2025, 11:40

ER

A group of men and women gathered to compete in a marathon.

655-705 (Hard) | Statistics and Sets Problems

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

enigma123

17 Nov 2011, 16:42

181

17

35,508

by: bumpbot

13 Nov 2025, 08:51

ER

Members of a wrestling team were weighed twice. Was the standard devia

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

02 Jun 2018, 13:46

45

8

6,529

by: bumpbot

13 Nov 2025, 00:03

ER

What was Bill's average (arithmetic mean) grade for all of his courses

Sub 505 (Easy) | Statistics and Sets Problems

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

adkikani

20 Nov 2018, 09:12

11

6

9,129

by: nurbijoy

12 Nov 2025, 22:24

ER

The average weight of people in a group is 150 pounds. If no two peop

655-705 (Hard) | Statistics and Sets Problems

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

gmatophobia

08 Nov 2022, 14:59

10

6

3,050

by: Stella5200

12 Nov 2025, 00:57

ER

If m, s are the average and standard deviation of integers a, b, c

655-705 (Hard) | Statistics and Sets Problems

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

ashwink

12 Mar 2017, 20:49

29

5

9,423

by: pappal

11 Nov 2025, 13:02

ER

Set A consists of scores obtained by each of the students in Class X

705-805 (Hard) | Number Properties +2 tags

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

kiran120680

13 Jun 2019, 02:09

17

5

2,909

by: Bunuel

11 Nov 2025, 00:23

ER

If the median and the average (arithmetic mean) of 4 different numbers

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

25 Jan 2024, 02:30

4

2,194

by: bumpbot

10 Nov 2025, 21:01