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

78,674

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

188,499

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

487,898

by: bb

29 Aug 2025, 13:27

ER

A, B, C, and D are distinct points on a plane. If triangle A

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

IrinaOK

04 Jul 2014, 05:50

7

13

5,247

by: Bunuel

04 Jul 2014, 05:52

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If x and y are integers, what is the value of y ?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

irda

11 Jun 2014, 03:43

22

18

5,643

by: bumpbot

18 Jan 2023, 13:59

ER

If m and n are positive integers, is 3√m < √(m+n) ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

irda

15 Aug 2013, 05:06

5

2

3,089

by: bumpbot

12 May 2019, 19:52

ER

What is the greatest integer that is less than t?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

inwosu

27 Feb 2013, 02:17

4

8

14,036

by: vv65

24 Sep 2022, 20:40

ER

What is the value of x?

605-655 (Medium) | Arithmetic

605-655 (Medium) | Arithmetic hide tags

interceptor77

30 Oct 2016, 04:07

75

5

8,322

by: bumpbot

03 Sep 2025, 04:08

ER

If Z is an integer, is Z prime?

605-655 (Medium) | Inequalities, Number Properties

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

InspiredAnimal

12 May 2011, 04:49

110

11

13,870

by: bumpbot

15 Jun 2025, 22:46

ER

Pat traveled a distance of 240 miles in x hours. For a part

605-655 (Medium) | Distance and Speed Problems

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

innocous

22 Jun 2013, 01:04

11

5

4,553

by: SmileAndSolve

13 Jun 2025, 11:33

ER

Is quadrilateral ABCD a parallelogram ?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

innocous

25 Aug 2013, 10:58

96

18

13,062

by: bumpbot

23 Oct 2024, 04:47

ER

Are both x and y positive?

605-655 (Medium) | Algebra, Roots

605-655 (Medium) | Algebra, Roots hide tags

innocous

09 Oct 2013, 23:36

37

17

7,278

by: bumpbot

25 Jul 2023, 03:14

ER

In the xy-plane , line l intersects a circle with center

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

innocous

17 Jul 2014, 11:58

22

8

7,962

by: bumpbot

06 Aug 2022, 07:30

Two trains 1& 2 start simultaneously and run on parallel

555-605 (Medium) | Distance and Speed Problems

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

innocous

23 Nov 2013, 04:57

15

3

5,712

by: sharathnair14

01 Oct 2019, 07:39

ER

A rectangular room has dimensions of the four walls as " x "

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

innocous

19 Aug 2013, 03:09

3

6

3,274

by: mikeyg51

13 Oct 2016, 16:03

ER

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

Poor Quality

Poor Quality hide tags

innocous

02 Sep 2013, 12:39

17

11

7,786

by: Amateur

30 Dec 2013, 15:21

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

Poor Quality

Poor Quality hide tags

innocous

16 Aug 2013, 08:36

3

2

3,216

by: zerosleep

19 Aug 2013, 07:21

A non empty set S has less than four elements. How many

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Poor Quality hide tags

innocous

25 Jul 2013, 07:25

4

2,323

by: Observer

25 Jul 2013, 12:40

ER

If x is a positive integer, the symbol * represents which of

505-555 (Easy) | Functions and Custom Characters

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

infymys

29 Oct 2013, 06:42

13

7

10,015

by: bumpbot

13 Sep 2022, 10:16

ER

What is the value of x (1) x^2 - 5x + 4 = 0 (2) x is not prime

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

info2scs

14 May 2012, 16:52

4

3

11,100

by: bumpbot

10 Apr 2024, 11:29

ER

Mary goes from her house to the library at a constant speed rate of 40

555-605 (Medium) | Distance and Speed Problems

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

indu1954

23 Feb 2019, 00:15

9

7

3,151

by: bumpbot

23 Jun 2021, 07:35

ER

If x and y are integers, is xy even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

inderjeetdhillon

13 Dec 2012, 06:03

69

14

47,366

by: bumpbot

05 Apr 2025, 23:36

ER

If BC = BD, what is the length of BC?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

ind23

12 Apr 2014, 11:27

19

4

9,469

by: bumpbot

28 Oct 2023, 12:31

ER

The cost C, in dollars of producing x units of a certain commodity is

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

inakihernandez

24 Apr 2016, 11:36

160

16

48,111

by: bumpbot

18 Sep 2025, 04:55

ER

Circle 1, Circle 2 and Circle 3 have the same center, and have a radiu

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

1, 2

inakihernandez

28 Apr 2016, 11:26

279

25

66,406

by: bumpbot

16 Dec 2023, 00:56

ER

What is the value of r^2 - 2rs + s^2?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

inakihernandez

09 Feb 2017, 12:36

5

4

4,456

by: bumpbot

12 Oct 2021, 10:41

ER

The lengths of three sides of a triangle are x, x + 2, and x

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

imsahlahno

07 Oct 2013, 10:03

9

3

7,995

by: bumpbot

28 Sep 2022, 23:20

ER

If a+b>m, what is the value of positive integer m?

705-805 (Hard) | Exponents, Inequalities

705-805 (Hard) | Exponents, Inequalities hide tags

immarenbe

17 Apr 2022, 23:57

3

4

1,082

by: KarishmaB

17 Apr 2022, 23:46

ER

When 26 is divided by the positive integer k, the remainder is k - 2.

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

immarenbe

11 Feb 2022, 01:42

5

3

2,138

by: Archit3110

11 Feb 2022, 09:20

ER

In a particular machine, there are 2 gears that interlock; One gear is

605-655 (Medium) | Work and Rate Problems

605-655 (Medium) | Work and Rate Problems hide tags

imhimanshu

16 Aug 2012, 08:32

167

7

31,551

by: bumpbot

21 Jan 2026, 15:05

ER

If x and y are positive, what is x+y

805+ (Hard) | Exponents

805+ (Hard) | Exponents hide tags

imhimanshu

09 Oct 2013, 01:04

40

10

5,418

by: bumpbot

21 Jan 2026, 01:46

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If 0 < x < y, is y - x < 0.00005? (1) x > 1/60,000 (2) y < 1/15,000

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

imhimanshu

05 Apr 2012, 09:26

253

13

29,709

by: bumpbot

26 Jun 2025, 21:22

ER

Website W receives orders for its products every day. What is the Stan

505-555 (Easy) | Statistics and Sets Problems

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

imhimanshu

08 Oct 2013, 09:01

212

16

52,040

by: bumpbot

25 Jun 2025, 04:23

ER

The integers r, s and t all have the same remainder when div

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

imhimanshu

23 Sep 2013, 05:58

626

17

79,604

by: bumpbot

28 Jan 2025, 14:19

ER

In quadrilateral ABCD, sides AB and BC each have length √2,

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

imhimanshu

30 Mar 2014, 11:14

30

13

17,997

by: Bunuel

21 Mar 2021, 01:39

ER

If x>0 Is (x)^1/2>x

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

imhimanshu

02 Sep 2013, 07:55

10

5

3,902

by: lakshya14

31 Jan 2021, 12:05

ER

One kilogram of a certain coffee blend consists of x kilogram of type

805+ (Hard) | Mixture Problems, Word Problems

805+ (Hard) | Mixture Problems, Word Problems hide tags

imadkho

25 Mar 2012, 11:23

372

16

49,253

by: bumpbot

03 Jun 2025, 06:09

ER

A hotel has 80 rooms and charges the same amount per night for each

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

illegallyblonde

25 Mar 2024, 23:47

169

15

18,377

by: VaibhavKulkarni

16 Oct 2025, 12:59

ER

The daily profit, P, for selling x units of a certain item at

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

ilikeshoppingalot

20 Mar 2024, 17:33

59

10

11,224

by: bumpbot

14 May 2025, 00:01

ER

If the integer x is greater than 1, does x = 2?

655-705 (Hard) | Multiples and Factors, Number Properties

655-705 (Hard) | Multiples and Factors, Number Properties hide tags

ilaila

27 Jun 2010, 09:37

21

15

7,284

by: bumpbot

05 Feb 2025, 04:19

ER

A total of 100 customers purchased books at a certain bookstore last

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

IgnitedMind

12 Sep 2008, 10:14

116

11

24,864

by: KarishmaB

15 Sep 2025, 00:08

ER

A student is entering in a college housing lottery for 2

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

iGMATUSA

23 Oct 2012, 07:37

19

14

9,644

by: bumpbot

15 Oct 2022, 15:54

ER

Is ay < 2y + x (a - 2)? (1) x > y (2) a > 2

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

ifteec464

26 Sep 2020, 01:11

3

2

1,186

by: TestPrepUnlimited

27 Sep 2020, 16:42

ER

If x is negative, is x <-3? (1) x^2 > 9 (2) x^3 <

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

IEsailor

19 May 2011, 00:17

20

10

7,647

by: Bunuel

29 Nov 2017, 00:47

Last month, all units of product X produced by a certain company sold

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

idontknowwhy94

05 Oct 2016, 09:52

23

4

5,493

by: bumpbot

01 Jul 2024, 03:28

ER

If x , p and q are positive integers , then

805+ (Hard) | Algebra, Exponents

805+ (Hard) | Algebra, Exponents hide tags

idontknowwhy94

08 Oct 2016, 10:07

34

5

6,982

by: bumpbot

29 Aug 2023, 10:24

ER

Is x < 0? (1) x^3 + x^2 + x + 2 = 0 (2) x^2 - x - 2 < 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

idontknowwhy94

07 Oct 2016, 10:34

8

10

3,694

by: bumpbot

13 Jun 2023, 03:48

Is x^2 * y^2< xy ?

555-605 (Medium) | Algebra, Inequalities

555-605 (Medium) | Algebra, Inequalities hide tags

idontknowwhy94

06 Oct 2016, 13:25

16

8

4,060

by: bumpbot

27 Mar 2023, 00:22

ER

If a, b, x, y are positive integers and a^xb^y= 144, then a + b = ?

805+ (Hard) | Algebra, Exponents

805+ (Hard) | Algebra, Exponents hide tags

idontknowwhy94

05 Oct 2016, 05:34

42

5

6,753

by: bumpbot

29 Nov 2022, 10:57

ER

If m and n are positive Integers , what is the rem

555-605 (Medium) | Exponents, Number Properties

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

idontknowwhy94

18 Oct 2016, 08:34

1

2

2,252

by: abhimahna

23 Oct 2016, 00:12

ER

Which one of the following is greatest among the three

555-605 (Medium) | Algebra, Exponents

555-605 (Medium) | Algebra, Exponents hide tags

idontknowwhy94

07 Oct 2016, 04:46

1

2,200

by: abhimahna

07 Oct 2016, 07:17

ER

Alice, Barbara, and Cynia work on identical tasks at differe

655-705 (Hard) | Work and Rate Problems

655-705 (Hard) | Work and Rate Problems hide tags

idinuv

23 Dec 2013, 08:01

46

8

14,562

by: bumpbot

25 Jan 2025, 19:38

ER

For real numbers, A, B, C, and D on the number line

805+ (Hard) | Absolute Values +2 tags

805+ (Hard) | Absolute Values, Arithmetic, Inequalities hide tags

idinuv

04 Jan 2014, 23:57

74

12

10,801

by: bumpbot

10 Aug 2024, 01:17