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

78,524

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

188,411

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

487,750

by: bb

29 Aug 2025, 13:27

ER

If x and y are nonzero integers, is x^y < y^x ?

605-655 (Medium) | Algebra +2 tags

605-655 (Medium) | Algebra, Exponents, Inequalities hide tags

Bunuel

27 Oct 2005, 16:28

231

11

34,266

by: bumpbot

25 Feb 2025, 13:36

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

7,065

by: bumpbot

11 Mar 2025, 20:27

ER

If m is an integer, is m odd?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

1, 2, 3

sudhagar

06 Nov 2005, 13:00

221

41

55,504

by: totaltestprepNick

23 Feb 2026, 13:46

ER

Is rst = 1?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

sudhagar

07 Nov 2013, 02:08

15

6

19,804

by: Bunuel

07 Nov 2013, 02:10

ER

Bill’s street address is wxyz Oak Street where w, x, y, and

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

rsanchez

12 Nov 2005, 13:09

25

13

8,498

by: bumpbot

22 Sep 2023, 07:38

ER

The point A, B, C, and D are on the number line, not necessa

605-655 (Medium) | Geometry, Number Properties

605-655 (Medium) | Geometry, Number Properties hide tags

1, 2

ronybtl

27 May 2014, 07:40

432

20

133,380

by: bumpbot

28 Nov 2025, 23:11

If a number is drawn at random from the first 1000 positive

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GMATT73

23 Nov 2005, 07:19

75

14

26,639

by: Nevernevergiveup

12 Jul 2016, 22:53

ER

If 20 percent of the members in club A are members of club B also,

555-605 (Medium) | Overlapping Sets, Percent and Interest Problems

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

getzgetzu

24 Nov 2005, 02:07

31

7

11,018

by: bumpbot

13 Jul 2025, 09:14

ER

Division R of Company Q has 1,000 employees. What is the average (arit

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

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

getzgetzu

01 Dec 2005, 00:34

47

6

22,791

by: bumpbot

29 Mar 2026, 06:05

ER

Is x > y? (1) 9x = 4y (2) x = -y

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

GMATT73

05 Nov 2020, 06:37

44

11

11,268

by: bumpbot

22 Jul 2025, 22:55

ER

Is ∆ ABC a right triangle? (1) The degree measure of ∠A

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Chembeti

08 Dec 2005, 05:49

5

3

5,201

by: bumpbot

08 Apr 2023, 03:09

ER

If n is a positive integer that is less than 10, what is the

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

TOUGH GUY

10 Dec 2005, 16:19

44

9

17,327

by: bumpbot

17 Nov 2025, 10:55

ER

If n and t are positive integers, is n a factor of t ?

505-555 (Easy) | Exponents, Multiples and Factors

505-555 (Easy) | Exponents, Multiples and Factors hide tags

TOUGH GUY

15 Sep 2020, 05:28

181

14

30,125

by: bumpbot

20 Aug 2024, 10:37

ER

Both Betty and Wilma earn annual salaries of more than $50000. Is

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

gamjatang

16 Dec 2005, 00:17

5

13

8,431

by: Bunuel

08 Jun 2015, 02:48

ER

Does the product jkmn equal 1?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

paki

07 Oct 2022, 08:18

13

8

16,091

by: bumpbot

05 Aug 2025, 10:17

ER

At a two-day seminar, 90 percent of those registered attended the semi

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

TeHCM

17 Dec 2005, 23:41

209

9

56,050

by: bumpbot

29 May 2025, 00:20

ER

At a certain bakery, each roll costs r cents and each doughnut costs

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

1, 2

joemama142000

18 Dec 2005, 18:08

86

21

21,403

by: bumpbot

07 Apr 2026, 03:06

ER

On his trip from Alba to Benton, Julio drove the first x miles at an

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

sandalphon

21 Oct 2019, 02:24

105

19

25,678

by: KarishmaB

15 Apr 2026, 07:33

ER

What is the average (arithmetic mean) height of the n people in a cert

555-605 (Medium) | Statistics and Sets Problems

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

sandalphon

20 Dec 2005, 09:03

157

14

63,741

by: bumpbot

06 Jul 2025, 11:04

ER

What is the circumference of the circle above?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

JAI HIND

22 Dec 2005, 00:54

27

4

15,019

by: bumpbot

02 Aug 2024, 10:58

ER

If x and y are positive integers, is 2x a multiple of y?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

allabout

02 Nov 2013, 05:28

68

11

24,891

by: bumpbot

30 Mar 2025, 07:12

ER

Are the integers q, r and s consecutive?

555-605 (Medium) | Statistics and Sets Problems

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

bewakoof

08 Jul 2013, 07:21

35

9

12,283

by: bumpbot

20 May 2025, 10:03

ER

For all integers n, the function f is defined by f(n) = a^n, where a

505-555 (Easy) | Exponents, Functions and Custom Characters

505-555 (Easy) | Exponents, Functions and Custom Characters hide tags

sperumba

15 Sep 2020, 03:08

66

9

22,618

by: bumpbot

17 Jun 2025, 21:47

ER

From May 1, 1960, to May 1, 1975, the closing price of a

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Puilunchristin

30 Jan 2013, 04:57

19

7

15,406

by: bumpbot

25 Jun 2025, 05:07

ER

At a certain department store present-wrapping counter, each

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

chiragr

20 Oct 2013, 09:56

84

7

16,308

by: bumpbot

16 Sep 2025, 05:08

ER

Of the 200 members of a certain association, each member who speaks Ge

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Gordon

21 Oct 2019, 08:48

119

19

33,446

by: bumpbot

07 Oct 2025, 21:54

ER

If r and s are positive integers, can the fraction r/s be expressed as

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

joemama142000

19 Sep 2014, 07:26

8

10

6,041

by: Bunuel

19 Sep 2014, 07:27

ER

Each member of a pack of 55 wolves has either brown or blue

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

GMATT73

25 Mar 2006, 22:17

46

10

15,890

by: Bunuel

31 Jan 2014, 08:11

In 1999, Company X's gross profit was what percent of its

555-605 (Medium) | Percent and Interest Problems

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

sm176811

14 Apr 2006, 13:49

69

6

27,825

by: totaltestprepNick

25 Feb 2026, 16:00

ER

If Sarah and Mary had no savings at the beginning of last year and the

555-605 (Medium) | Fractions and Ratios, Word Problems

555-605 (Medium) | Fractions and Ratios, Word Problems hide tags

yach

20 Apr 2006, 19:02

31

4

14,255

by: adipisci

09 Aug 2025, 07:55

ER

If n and p are integers, is p > 0?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

gvogelei

26 Apr 2006, 07:43

49

12

22,339

by: bumpbot

02 Mar 2025, 01:12

ER

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

82,475

by: bumpbot

10 Dec 2025, 01:49

ER

Jeff is painting two murals on the front of an old apartment

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

chiragr

08 Feb 2018, 05:29

114

17

21,309

by: JeffTargetTestPrep

25 Jun 2023, 18:46

ER

If 4x = 5y = 10z, what is the value of x + y + z ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

SimaQ

05 Apr 2015, 04:44

55

11

20,516

by: bumpbot

25 Mar 2025, 18:57

ER

Is the perimeter of a triangle greater than 1?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

gmat_crack

11 Jul 2013, 11:30

55

6

11,596

by: bumpbot

23 Sep 2025, 19:46

ER

A manufacturer produced x percent more video cameras in 1994 than in

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

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

mrmikec

15 Sep 2014, 20:40

152

19

35,942

by: MartyMurray

06 Feb 2026, 06:23

ER

What fractional part of the total surface area of cube C is

555-605 (Medium) | Fractions and Ratios, Geometry

555-605 (Medium) | Fractions and Ratios, Geometry hide tags

jaynayak

20 Jun 2013, 05:49

121

5

28,631

by: bumpbot

10 Sep 2025, 07:04

ER

A college surveyed 50 students to determine the average

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shobhitb

18 Jun 2006, 06:33

2

12

4,377

by: ENGRTOMBA2018

19 Jul 2015, 07:52

ER

If the average (arithmetic mean) of four different numbers is 30, how

605-655 (Medium) | Statistics and Sets Problems

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

kook44

06 Jun 2019, 02:45

209

14

78,227

by: bumpbot

19 Aug 2025, 22:29

ER

An integer greater than 1 that is not prime is called composite.

605-655 (Medium) | Multiples and Factors, Number Properties

605-655 (Medium) | Multiples and Factors, Number Properties hide tags

XxxyyY

25 Jun 2006, 16:05

384

19

72,210

by: Bunuel

06 Jul 2025, 12:57

ER

Given a set {x, y, z}, if the first term in the data set

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v1rok

08 Aug 2012, 05:04

3

5

13,205

by: shrouded1

28 Oct 2010, 03:37

ER

The attendees at a certain convention purchased a total of 15,000 book

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

shehreenquayyum

20 Oct 2014, 08:32

50

16

21,131

by: bumpbot

26 Sep 2025, 08:04

ER

R is a convex polygon. Does R have at least 8 sides?

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

kevincan

22 Apr 2014, 02:48

53

8

6,598

by: bumpbot

06 Feb 2021, 04:52

ER

If a point P(x,y) inside the above square ABCD is chosen at random and

805+ (Hard) | Coordinate Plane, Probability

805+ (Hard) | Coordinate Plane, Probability hide tags

kevincan

28 Aug 2006, 09:21

27

16

8,409

by: bumpbot

02 Jun 2025, 14:46

ER

In the number 1.4ab5, a and b represent single positive

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

shinewine

11 Jul 2013, 09:14

118

16

26,516

by: Apeksha2101

04 Dec 2024, 10:51

ER

Is n/18 an integer? (1) 5n/18 is an integer. (2) 3n/18 is an integer.

805+ (Hard) | Multiples and Factors, Number Properties

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

1, 2

shinewine

29 Aug 2006, 14:07

324

21

48,902

by: bumpbot

22 Oct 2025, 00:58

ER

List S and list T each contain 5 positive integers, and for each list

505-555 (Easy) | Statistics and Sets Problems

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

alimad

20 Oct 2019, 01:18

36

7

17,888

by: bumpbot

16 Oct 2024, 12:57

ER

What is the perimeter of isosceles triangle ABC?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

1, 2

GMATT73

19 Jul 2012, 02:36

123

20

46,385

by: bumpbot

29 Jun 2023, 06:57

ER

A box of doughnuts contains glazed, cream-filled, and jelly

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

1, 2

Nsentra

02 Sep 2006, 17:00

45

23

17,633

by: bumpbot

22 Dec 2024, 05:57

ER

A report consisting of 2,600 words is divided into 23

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

haas_mba07

06 Sep 2006, 20:45

7

10

11,281

by: Bunuel

30 Jul 2015, 07:22