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

78,695

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

856

24

188,509

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

487,916

by: bb

29 Aug 2025, 13:27

ER

Is (-1,-1) a point on line OQ?

505-555 (Easy) | Coordinate Plane, Geometry

505-555 (Easy) | Coordinate Plane, Geometry hide tags

shivanigs

19 Oct 2012, 03:11

31

19

9,120

by: bumpbot

30 Jul 2023, 06:06

ER

An attorney charged a fee for estate planning services for a certain

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

Kritesh

14 May 2017, 01:25

4

2

9,117

by: bumpbot

19 Jun 2023, 08:33

ER

Patricia has several coins, each of which is worth either 5 cents or

555-605 (Medium) | Algebra, Word Problems

555-605 (Medium) | Algebra, Word Problems hide tags

dcummins

30 Nov 2018, 16:26

27

6

9,116

by: bumpbot

05 Nov 2023, 04:55

ER

GMAT CLUB OLYMPICS: The ratio of the number of marbles in boxes X and

655-705 (Hard) | Fractions and Ratios, Word Problems

655-705 (Hard) | Fractions and Ratios, Word Problems hide tags

Bunuel

26 Aug 2021, 08:00

43

5

9,115

by: bumpbot

15 Jun 2025, 12:33

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Does x = y ? (1) x^2 - y^2 = 0 (2) (x + y)^2 = 0

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

11 Oct 2015, 05:24

12

7

9,115

by: bumpbot

24 Jan 2023, 08:25

ER

In quadrilateral ABCD, is AC longer than BD?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

voodoochild

13 Feb 2021, 14:59

37

12

9,114

by: Bunuel

15 Aug 2023, 03:32

ER

If John has exactly 10 coins each of which was minted in 1910 or 1920

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

23 May 2020, 07:18

36

6

9,111

by: lettercreativensq

07 Mar 2026, 22:30

ER

If y is a positive integer, is y prime?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

LM

24 Oct 2012, 05:45

56

13

9,109

by: bumpbot

02 Aug 2025, 13:31

ER

What was the average number of miles per gallon of gasoline for a car

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

03 Oct 2018, 01:49

6

3

9,107

by: bumpbot

24 Jun 2022, 08:21

ER

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

555-605 (Medium) | Multiples and Factors, Number Properties

555-605 (Medium) | Multiples and Factors, Number Properties hide tags

Bunuel

06 Feb 2015, 07:19

26

5

9,103

by: bumpbot

16 Jan 2026, 22:47

ER

For the integers m, n, r, and s, if m + n = 250 and m > n, is (m – r)

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

24 Jul 2015, 00:55

41

11

9,099

by: bumpbot

08 Feb 2024, 05:23

ER

If x and y are positive integers such that the product of x

655-705 (Hard) | Exponents, Number Properties

655-705 (Hard) | Exponents, Number Properties hide tags

saikiranx

25 Nov 2012, 05:51

33

8

9,098

by: bumpbot

18 Jun 2025, 18:25

ER

A home owner must pick between paint A, which costs $6.00

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Poor Quality hide tags

gmac25

17 Aug 2009, 15:08

7

8

9,097

by: Bunuel

12 May 2013, 02:50

ER

Is |x-z| > |x-y| ? (1) |z| > |y| (2) 0 > x

605-655 (Medium) | Absolute Values, Inequalities

605-655 (Medium) | Absolute Values, Inequalities hide tags

Hussain15

14 Jul 2010, 11:18

32

7

9,094

by: bumpbot

02 Jul 2024, 04:06

ER

Is the range of a combined set (S,T) bigger than the sum of

655-705 (Hard) | Statistics and Sets Problems

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

satishreddy

29 Oct 2010, 15:31

24

6

9,094

by: bumpbot

22 Jan 2023, 22:39

ER

Each of the 120 students in a certain dormitory is either a junior or

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

parkhydel

28 Apr 2020, 04:26

14

2

9,092

by: bumpbot

30 Sep 2025, 08:27

ER

If a,b,c, d are distinct even integers and a is prime, is

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

enigma123

08 Sep 2012, 02:24

16

10

9,092

by: bumpbot

24 Jul 2021, 03:54

ER

What number is 15 percent of x ? (1) 18 is 6 percent of x (2) 2/3 of x

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

Bunuel

23 Sep 2018, 21:19

5

2

9,090

by: totaltestprepNick

24 Feb 2026, 13:50

ER

A, B, C and D are positive integers such that A/B = C/D. Is C divisibl

655-705 (Hard) | Exponents +2 tags

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

Bunuel

16 Apr 2015, 04:46

39

10

9,089

by: bumpbot

13 Mar 2024, 03:46

ER

In the rectangular coordinate system, lines m and n cross at

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

b00gigi

23 Sep 2013, 16:36

21

5

9,086

by: bumpbot

21 Mar 2023, 06:49

ER

Whenever Sally takes a cab and the fare is between $15 and $

605-655 (Medium) | Percent and Interest Problems

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

SoniaSaini

27 Jan 2011, 09:30

19

6

9,085

by: bumpbot

23 Aug 2025, 05:48

ER

If x and y are integers and xy ≠ 0, is x - y > 0?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

shrive555

11 Apr 2014, 03:45

23

11

9,084

by: bumpbot

14 Jan 2024, 13:07

ER

Is D greater than 1.55

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

enigma123

15 Feb 2014, 16:28

30

6

9,083

by: bumpbot

14 Nov 2025, 06:42

ER

In the given figure, ABC is a triangle and DEFG is a square. Find the

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

GMATBusters

08 Dec 2018, 10:25

7

10

9,079

by: bumpbot

18 Aug 2023, 05:06

ER

Is |x + y| < |x| + |y|? (1) |x| ≠ |y| (2) |x – y| > |x + y|

555-605 (Medium) | Absolute Values, Inequalities

555-605 (Medium) | Absolute Values, Inequalities hide tags

BabySmurf

05 Feb 2019, 04:35

80

8

9,078

by: bumpbot

04 Aug 2022, 00:53

ER

What is SD of given set of numbers whose average is 5?

555-605 (Medium) | Statistics and Sets Problems

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

udaymathapati

29 Mar 2017, 05:21

19

5

9,077

by: bumpbot

11 Jan 2024, 00:27

ER

In the figure above, what is the ratio of the area of triangle ABC to

Poor Quality

Poor Quality hide tags

SonyGmat

08 Jan 2012, 04:59

2

9

9,076

by: SonyGmat

09 Jan 2012, 14:45

ER

What is the value of ab?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Maxswe

09 Dec 2012, 11:06

9

9,074

by: bumpbot

06 Sep 2023, 11:27

ER

Symbol * denote to be one of the operations add, subtract, multiply, o

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

PriyankaPalit7

24 May 2019, 12:39

17

8

9,073

by: bumpbot

02 Jan 2025, 05:57

ER

In the xy-coordinate plane, line l passes through the point (-3, 0).

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Bunuel

12 Nov 2014, 10:09

29

5

9,072

by: bumpbot

01 Jul 2025, 06:33

ER

The average (arithmetic mean) cost of three computer models is $900.

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

GinGMAT

05 Mar 2016, 12:08

48

4

9,065

by: bumpbot

17 Jun 2025, 23:37

ER

If car X followed car Y across a certain bridge that is 21-m

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

niheil

09 Oct 2010, 13:13

18

8

9,062

by: bumpbot

18 Aug 2023, 04:08

ER

Is the integer x odd?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

23 Jun 2015, 02:55

20

10

9,061

by: bumpbot

04 Dec 2023, 08:41

What is the value of xy? (1) y = x + 1 (2) y = x^2 + 1

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

gouribhalerao

02 Feb 2023, 03:32

14

6

9,060

by: law258

18 Sep 2016, 17:29

ER

If n is a positive integer, are n and 1 the only positive divisors of

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

GMATBusters

06 Dec 2018, 06:36

8

4

9,056

by: bumpbot

13 Apr 2024, 23:29

ER

Maria drove a distance without stopping such that she covered first

805+ (Hard) | Distance and Speed Problems

805+ (Hard) | Distance and Speed Problems hide tags

amanvermagmat

18 Jul 2018, 00:43

49

14

9,055

by: bumpbot

10 Sep 2025, 05:10

ER

Cars P and Q started simultaneously from opposite ends of a straight

655-705 (Hard) | Distance and Speed Problems

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

fozzzy

07 Sep 2022, 04:17

47

11

9,039

by: bumpbot

14 Mar 2026, 03:25

ER

A line is graphed on a coordinate plane. How many times less is the di

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

09 Feb 2015, 06:44

48

16

9,037

by: bumpbot

01 Aug 2024, 04:34

ER

At a certain company, 40% of the women are over 50 years old and 50% o

655-705 (Hard) | Percent and Interest Problems, Word Problems

655-705 (Hard) | Percent and Interest Problems, Word Problems hide tags

Bunuel

23 Sep 2015, 03:22

27

10

9,035

by: bumpbot

21 Apr 2026, 18:29

ER

100 residents of a city were surveyed and each one read at least one

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

08 Dec 2019, 23:58

16

11

9,035

by: bumpbot

17 Mar 2026, 20:12

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

Maxirosario2012

30 Nov 2013, 19:37

63

7

9,032

by: bumpbot

23 Mar 2025, 07:46

ER

A room is 480 centimeters wide and 520 centimeters long. If n identica

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

10 Jun 2015, 04:00

15

9

9,032

by: bumpbot

29 Oct 2020, 03:36

ER

Is x greater than y? (1) x - y^2 >0 (2) xy < 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

15 Jul 2018, 21:38

12

5

9,029

by: bumpbot

23 May 2024, 02:49

ER

Is A multiple of 6?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Vamshi8411

17 Sep 2012, 05:50

23

6

9,029

by: bumpbot

22 Apr 2024, 02:02

ER

In the figure above, three segments are drawn from the oppos

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

subhajeet

18 Sep 2011, 00:08

44

13

9,029

by: bumpbot

15 Feb 2023, 00:12

ER

If m and n are positive integers and m + n is prime, is m

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

loveparis

09 Feb 2011, 15:07

4

11

9,026

by: bumpbot

13 Jan 2022, 06:48

ER

Jeffs average (arithmetic mean) monthly utility bill for the months

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

02 Oct 2015, 01:44

8

6

9,016

by: bumpbot

21 Mar 2024, 13:27

ER

Is |x + 2| < 3? (1) x < 1 (2) x > -5

505-555 (Easy) | Absolute Values, Inequalities

505-555 (Easy) | Absolute Values, Inequalities hide tags

GMATBusters

01 Nov 2018, 22:27

32

7

9,015

by: avigutman

06 Feb 2023, 12:23

ER

If r and q are integers, what is the value of (5^r)(3^(q+1))?

505-555 (Easy) | Exponents

505-555 (Easy) | Exponents hide tags

Bunuel

29 Mar 2016, 03:13

6

7

9,014

by: dvns

09 Jul 2022, 09:13

What are the ages of three brothers?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

TheUltimateWinner

10 Dec 2019, 08:09

2

4

9,009

by: rajatchopra1994

11 Dec 2019, 20:09