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

78,663

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

188,484

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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

487,878

by: bb

29 Aug 2025, 13:27

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If x is an integer such that x > 0, is it true that x is an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

09 Jul 2015, 04:19

3

6

3,728

by: Bunuel

13 Jul 2015, 03:06

ER

Car X leaves Town A at 2 p.m. and drives toward Town B at a constant

655-705 (Hard) | Distance and Speed Problems

655-705 (Hard) | Distance and Speed Problems hide tags

pranit

05 Jul 2015, 12:08

9

10

6,174

by: Bunuel

05 Jul 2015, 12:10

ER

Is the two-digit prime number p equal to 17?

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BN1989

12 Jun 2013, 03:25

8

2

4,845

by: bumpbot

02 Jul 2015, 06:37

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x is a positive integer; what is the value of x? 1) The sum

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

rajatr

25 Apr 2013, 01:50

2

3

5,707

by: bumpbot

26 Jun 2015, 02:03

ER

A charity planned to distribute 'n' pens (n<300) to students

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alphonsa

02 Aug 2014, 01:31

2

2,168

by: IanStewart

23 Jun 2015, 13:32

a, b and c are integers such that a < b < c. Do they have a

805+ (Hard) | Statistics and Sets Problems

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

cyberjadugar

09 Jun 2012, 12:04

3

2

3,324

by: mika84

22 Jun 2015, 14:06

ER

Is x = 1?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

19 Jun 2015, 01:55

6

5

4,687

by: Bunuel

22 Jun 2015, 06:22

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What is the units digit of integer s? (1) The units digit of

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dreambeliever

07 Jun 2011, 08:05

4

18

3,942

by: Harley1980

19 Jun 2015, 12:33

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Seven different numbers are selected from the integers 1 to 100, and

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

cebenez

19 Jun 2015, 00:31

25

6

8,794

by: Bunuel

19 Jun 2015, 00:32

A set S contains five numbers k, k + 1, 2k - 1, 5k + 7 and 6k + 8. If

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itzmyzone911

03 May 2015, 22:42

3

10

3,397

by: teplyam

18 Jun 2015, 23:57

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If r and s are non-negative, what is the ratio of r to s?

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anulfc

14 Jun 2015, 15:40

4

10

4,911

by: IanStewart

16 Jun 2015, 14:54

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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

8,432

by: Bunuel

08 Jun 2015, 02:48

ER

How much water should the milkman add to milk purchased

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monikaleoster

03 Nov 2012, 08:46

33

13

10,528

by: KarishmaB

13 May 2015, 23:01

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If distinct points A, B, C, and D form a right triangle ABC

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

far257

10 Aug 2011, 08:44

5

11

4,520

by: Bunuel

11 May 2015, 08:39

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Each resident of Ranchville either likes or dislikes Wrestling and eac

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shohrat6383

24 Apr 2015, 08:42

2

6

1,800

by: aimtoteach

27 Apr 2015, 21:04

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In Greenville last July, what was the average (arithmetic

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rohitgarg

14 May 2017, 01:34

5

11

12,937

by: ash99

22 Apr 2015, 11:32

ER

If x and y are integers, is xy even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

mpcostello

20 Apr 2015, 04:35

5

4,482

by: Bunuel

20 Apr 2015, 04:36

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If a and b are positive, a% of what number is equal to b% of a?

555-605 (Medium) | Percent and Interest Problems

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

petu

19 Apr 2015, 11:39

2

3,094

by: EMPOWERgmatRichC

19 Apr 2015, 12:40

ER

What is the maximum number of arrangements in which N students can be

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

05 Feb 2015, 09:10

8

6,582

by: KarishmaB

30 Mar 2015, 21:01

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A ladder of fixed length is stacked against a wall. The wall is perpen

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mahiGMAT

25 Mar 2015, 03:08

3

7

3,218

by: SherLocked2018

30 Mar 2015, 02:33

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Tom can buy a certain type-writer for Z1 dollars in city X,

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

pb_india

02 May 2005, 12:49

10

4

4,105

by: bumpbot

24 Mar 2015, 23:41

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In the figure above, ST=3. What is the length of RS?

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Awli

26 Feb 2015, 11:24

6

4

2,801

by: KarishmaB

23 Mar 2015, 22:25

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If x > 0, is √x > x ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

16 Feb 2015, 06:48

7

5

4,182

by: EMPOWERgmatRichC

22 Feb 2015, 23:43

ER

In the rectangular coordinate system above, if OB < BC then is the are

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

TARGET730

09 Feb 2015, 03:34

9

7

4,170

by: chetan2u

16 Feb 2015, 18:58

ER

When 200 laboratory rats were given an experimental medicine

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

rxs0005

12 Feb 2012, 10:33

2

10

3,516

by: shriramvelamuri

29 Jan 2015, 13:19

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Is f(x) > 0?

555-605 (Medium) | Algebra, Functions and Custom Characters

555-605 (Medium) | Algebra, Functions and Custom Characters hide tags

Bunuel

21 Jan 2015, 02:50

14

9

5,107

by: Bunuel

26 Jan 2015, 05:56

ER

If x and y are positive, does (x-2)(y-3)=6?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

19 Jan 2015, 05:46

4

3,389

by: Bunuel

26 Jan 2015, 05:28

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What is the number of 360-degree rotations that Tashi’s unicycle wheel

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

12 Jan 2015, 11:15

1

3

2,512

by: Bunuel

19 Jan 2015, 03:43

ER

What is the measure of ∠ABX in the following figure?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

11 Jan 2015, 12:21

2

2,885

by: Bunuel

19 Jan 2015, 03:32

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Does the area of a certain square greater than the area of a certain

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

26 Dec 2014, 08:49

3

5

3,635

by: CCMBA

09 Jan 2015, 20:49

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Last season, the Rally Cats won 40 percent of the first 45 games they

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

30 Dec 2014, 07:53

5

6

3,256

by: Bunuel

09 Jan 2015, 06:14

ER

José deposited a total of $ 10,000 into two interest-bearing accounts

555-605 (Medium) | Percent and Interest Problems

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

gmatmania17

29 Dec 2014, 05:28

7

3,834

by: EMPOWERgmatRichC

30 Dec 2014, 21:01

ER

In a certain coding scheme, each word is encoded by replacing each

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

22 Dec 2014, 09:20

3

3,752

by: g106

23 Dec 2014, 11:33

ER

In a serving of a breakfast cereal that contains only oats, raisins

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

22 Dec 2014, 09:24

4

8,352

by: g106

23 Dec 2014, 09:42

ER

In the figure above, x, y, and z denote the lengths of the sides of a

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

17 Dec 2014, 07:48

4

6,051

by: beattheheat

20 Dec 2014, 10:48

ER

If x is a positive integer, is x divisible by 15?

705-805 (Hard) | Multiples and Factors

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

CMcAboy

03 Apr 2011, 18:50

7

13

8,104

by: santorasantu

05 Dec 2014, 12:04

ER

If x + y is an integer, is y an integer?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

sset009

26 Jul 2008, 10:30

9

3

3,808

by: Bunuel

05 Dec 2014, 04:22

ER

What is the ratio of y to x?

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SirGMAT

02 Dec 2014, 08:21

15

6

7,081

by: Bunuel

02 Dec 2014, 08:21

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If the square root of t is a real number, is the square root

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Rock750

09 Apr 2013, 16:32

3

3,518

by: Maxirosario2012

29 Nov 2014, 17:16

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What is the value of x^2 + y^2 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

krazo

24 Nov 2014, 01:45

2

6

4,278

by: Bunuel

24 Nov 2014, 01:45

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A certain sum was invested in a high-interest bond for which

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punyadeep

16 Mar 2011, 07:49

31

15

14,906

by: bumpbot

19 Nov 2014, 11:32

ER

What is the value of x + y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

14 Nov 2014, 09:51

3

4

3,667

by: Bunuel

17 Nov 2014, 12:15

ER

What is the increasing percent of the price of the company's stocks

555-605 (Medium) | Fractions and Ratios

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

h31337u

09 Nov 2014, 07:52

2

3

3,141

by: Bunuel

10 Nov 2014, 02:29

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Is x^2+y^2 divisible by 5?

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ctrlaltdel

14 Nov 2009, 18:56

35

13

15,943

by: deeuk

10 Nov 2014, 01:27

A regular hexagon is inscribed in a circle. What is the area

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smartyman

02 Jul 2014, 01:03

2

5,107

by: dmmk

04 Nov 2014, 08:34

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The new recruits of a military organization who score in the bottom 16

705-805 (Hard) | Statistics and Sets Problems

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

Hedwig

05 Oct 2014, 05:01

6

2

6,101

by: Hedwig

05 Oct 2014, 06:25

The volume of cylinder A is how much more than the volume of cylinder

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DangerPenguin

29 Sep 2014, 07:37

1

8

4,096

by: DangerPenguin

29 Sep 2014, 07:37

ER

Is integer y is divisible by 24?

505-555 (Easy) | Multiples and Factors

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

Gnpth

24 Jul 2014, 07:54

10

3

6,525

by: kalaits

26 Sep 2014, 14:04

ER

Is quadrilateral ABCD a rectangle? (1) Line segments AC and

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

jamesrwrightiii

28 Aug 2007, 21:19

5

6

4,415

by: Bunuel

24 Sep 2014, 12:54

ER

S is an infinite sequence, in which the value of a

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gmatprep2011

23 Sep 2011, 23:23

18

9

5,822

by: Bunuel

21 Sep 2014, 11:41