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

79,714

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

188,978

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

488,676

by: bb

29 Aug 2025, 13:27

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

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Manik12345

07 Jun 2014, 01:28

2

7

7,816

by: Manik12345

09 Jun 2014, 01:21

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Is the number of seconds required to travel d1 feet at r1

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

kapilnegi

15 Jun 2008, 09:04

30

4

15,119

by: Bunuel

07 Jun 2014, 14:29

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What is the value of |y|?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

bagdbmba

24 Jun 2013, 06:10

2

3,527

by: madn800

04 Jun 2014, 19:20

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Two coins are tossed with probability landing at Head not

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

aeros232

23 Nov 2012, 03:39

6

8

6,999

by: Bunuel

04 Jun 2014, 09:11

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Three machines, K, M, and P, working simultaneously and

Sub 505 (Easy) | Work and Rate Problems

Sub 505 (Easy) | Work and Rate Problems hide tags

LGOdream

04 Sep 2011, 09:45

20

7

22,787

by: Bunuel

22 May 2014, 05:21

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If the point (4,6) lies on line l, and the point (x,3)

Sub 505 (Easy) | Coordinate Plane

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gauravsoni

08 Dec 2015, 03:34

2

5

5,775

by: Bunuel

21 May 2014, 02:19

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A certain 13m ladder is resting against a wall of height X

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rathoreaditya81

05 Dec 2009, 11:51

4

16

4,838

by: kundankshrivastava

19 May 2014, 23:42

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Which is larger, the sum of the roots of equation A or the

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

dreambeliever

30 Jul 2011, 15:05

4

7

6,737

by: Bunuel

15 May 2014, 01:11

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Do the diagonals of a quadrilateral ABCD bisect each other

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

mydreammba

28 Apr 2012, 06:51

8

13

9,286

by: qlx

30 Apr 2014, 09:19

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Peter, Paul, and Mary each received a passing score on

555-605 (Medium) | Statistics and Sets Problems

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

chineseburned

29 May 2008, 20:35

26

7

17,526

by: Bunuel

19 Apr 2014, 03:29

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Is the positive integer p the sum of the positive prime

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

wininblue

21 Aug 2010, 04:24

2

6

4,893

by: Bunuel

16 Apr 2014, 07:32

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Two racecar drivers, Abernathy and Berdoff, are driving

Sub 505 (Easy) | Distance and Speed Problems

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asiriel

20 Jun 2013, 04:00

17

7

12,713

by: NoHalfMeasures

14 Apr 2014, 06:53

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In the xy-plane is the slope of line k equal to 0?

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fozzzy

18 Jun 2013, 01:37

70

8

29,658

by: Bunuel

01 Apr 2014, 08:21

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In a group of 80 college students, how many own a car?

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

gmatprep2011

29 Mar 2014, 11:48

21

9

13,367

by: Bunuel

29 Mar 2014, 11:48

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At a certain restaurant, burgers, fries, and soft drinks are

705-805 (Hard) | Word Problems

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gmatpapa

28 May 2013, 05:45

4

6

4,121

by: jlgdr

27 Feb 2014, 09:29

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What is my age (expressed as a positive integer)? Although

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

EvaJager

10 Oct 2012, 12:25

4

12

3,881

by: thefibonacci

26 Feb 2014, 14:15

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If rs#0, is 1/r + 1/s = 4 ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

ggarr

23 Feb 2014, 02:29

2

13

9,305

by: Bunuel

23 Feb 2014, 02:32

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Is n^2 + 2n an integer? (1) n^3 + 3n is an integer. (2) 2n

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conty911

26 Apr 2012, 03:05

4

19

5,218

by: stne

13 Feb 2014, 07:15

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Is x divisible by 30?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

terp26

13 Mar 2008, 08:57

26

3

4,994

by: Bunuel

07 Feb 2014, 05:09

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

15,914

by: Bunuel

31 Jan 2014, 08:11

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If nCr gives a prime value,is r=n-1?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

mau5

14 May 2013, 03:30

5

3

2,777

by: jlgdr

07 Jan 2014, 09:29

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What is the value of x ?

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cssk

05 Jan 2014, 10:35

3

2,814

by: cssk

05 Jan 2014, 10:55

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If A, B & C can build a wall in 4 hours,working together,

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innocous

02 Sep 2013, 12:39

17

11

7,811

by: Amateur

30 Dec 2013, 15:21

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If x and y are both integers, which is larger, x^x or y^y?

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Apex231

18 Feb 2012, 09:33

7

6,189

by: jlgdr

27 Dec 2013, 10:09

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The third-place finisher of the Allen County hot dog eating

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

rao

29 Jul 2013, 08:33

30

5

19,546

by: Bunuel

26 Dec 2013, 08:29

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Is the number of seconds required to travel d1 feet at r1

605-655 (Medium) | Distance and Speed Problems

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

gluon

23 Dec 2013, 00:08

16

7

8,797

by: Bunuel

23 Dec 2013, 00:09

ER

In a sequence of terms in which each term is three times the

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

hogann

18 Dec 2013, 10:20

2

5,216

by: Bunuel

18 Dec 2013, 10:21

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What is the value of b ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

avohden

22 Oct 2013, 22:00

5

3,080

by: Bunuel

01 Dec 2013, 07:21

ER

Is the integer z divisible by 6?

605-655 (Medium) | Multiples and Factors

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

restore

08 Aug 2011, 11:16

5

8

6,432

by: Bunuel

29 Nov 2013, 02:29

ER

If a and b are consecutive positive integers, and ab = 30x ,

705-805 (Hard) | Multiples and Factors

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

4test1

09 Nov 2009, 22:04

73

12

22,315

by: AccipiterQ

19 Nov 2013, 09:00

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Is rst = 1?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

sudhagar

07 Nov 2013, 02:08

15

6

19,830

by: Bunuel

07 Nov 2013, 02:10

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Is xy > 7 ? (1) x + y = 7 (2) 1 x 3 and 2 y 4

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

avohden

02 Nov 2013, 00:40

3

2

3,674

by: avohden

05 Nov 2013, 22:42

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Let denote a mathematical operation. Is it true that x y

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conty911

25 Apr 2012, 22:35

4

3

6,563

by: Bunuel

30 Oct 2013, 07:59

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By what percent is the time taken by 12 men to complete a pa

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tabsang

28 Dec 2012, 05:49

10

6

4,917

by: fmomen01

22 Oct 2013, 07:14

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If p/q > 5, is q < 2?

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jeeteshsingh

15 Oct 2013, 09:04

6

31,183

by: Bunuel

15 Oct 2013, 09:14

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Quadrilateral ABCD is a rhombus and points C, D, and E are

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

vscid

13 Oct 2013, 16:03

18

3

5,053

by: Bunuel

13 Oct 2013, 16:05

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While on a summer vacation in Hawaii, Carla goes for an ocea

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Smita04

10 Jul 2012, 20:16

4

3,733

by: jlgdr

12 Oct 2013, 10:32

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If a and b are positive, is (a^(-1) + b^(-1))^(-1) less than

655-705 (Hard) | Exponents, Inequalities

655-705 (Hard) | Exponents, Inequalities hide tags

barakhaiev

11 Oct 2013, 06:44

4

3

4,198

by: Bunuel

11 Oct 2013, 06:46

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What is the value of (x + y)^4 ?

555-605 (Medium) | Algebra, Number Properties

555-605 (Medium) | Algebra, Number Properties hide tags

GMAT TIGER

17 Oct 2009, 23:27

2

8

4,220

by: Bunuel

11 Oct 2013, 04:28

ER

If x > 1, what is the value of integer x?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

l0rrie

18 Mar 2011, 14:07

20

12

7,361

by: Bunuel

20 Sep 2013, 00:34

ER

p and q are different two-digit prime numbers with the same

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

cvsmech

28 Sep 2011, 14:06

41

9

33,915

by: Bunuel

08 Sep 2013, 07:00

ER

If x and y are both integers, which is larger, x^x or y^y?

655-705 (Hard) | Exponents, Inequalities

655-705 (Hard) | Exponents, Inequalities hide tags

AnkitK

23 Jul 2011, 02:25

4

7

4,998

by: Bunuel

08 Sep 2013, 06:04

ER

A basic savings account pays interest once per year on Decem

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sehosayho

28 Aug 2013, 01:36

3

3,412

by: Bunuel

29 Aug 2013, 04:52

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In the sequence of non-zero numbers t1, t2,t3,......tn,.....

555-605 (Medium) | Sequences

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riks200

12 Jul 2008, 22:34

14

4

8,353

by: Bunuel

23 Aug 2013, 03:25

ER

The figure above shows the shape of a brick patio. If arc AB

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Asifpirlo

22 Aug 2013, 02:28

3

3,155

by: fameatop

22 Aug 2013, 03:16

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A CEO is building an extra-wide garage in which to park his

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Asifpirlo

21 Aug 2013, 17:56

2

3,627

by: fameatop

22 Aug 2013, 03:10

A pencil costs $3 and a pen costs $7. If pens and pencils

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innocous

16 Aug 2013, 08:36

3

2

3,231

by: zerosleep

19 Aug 2013, 07:21

The average weight of the students

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Gian

10 Aug 2013, 05:55

1

3

4,578

by: maaadhu

10 Aug 2013, 06:09

Jenifer, David and Steve are children of Mrs. Noris.

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Asifpirlo

05 Aug 2013, 11:35

1

3

3,075

by: Asifpirlo

05 Aug 2013, 11:34

A car is travelling in a constant speed to cover a distance

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karthiksms

28 May 2012, 11:54

5

6

5,441

by: WholeLottaLove

01 Aug 2013, 15:12