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

78,528

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

188,413

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

487,757

by: bb

29 Aug 2025, 13:27

ER

GMAT Club Olympics 2024 (Day 4): What is the length of a train

655-705 (Hard) | Distance and Speed Problems

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

1, 2...5, 6

Bunuel

11 Jul 2024, 07:00

89

105

10,663

by: bumpbot

22 Jul 2025, 07:44

ER

In the correctly-worked multiplication problem above, each symbol repr

805+ (Hard) | Arithmetic, Number Properties

805+ (Hard) | Arithmetic, Number Properties hide tags

Bunuel

06 May 2015, 02:36

89

7

14,992

by: bumpbot

18 Jul 2025, 05:56

ER

If x is a positive integer, is x-1 a factor of 104?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

enigma123

22 Jan 2012, 16:44

89

14

22,300

by: bumpbot

15 Jul 2025, 09:57

ER

At the beginning of a show, a lottery representative put one hundred b

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

Lucky2783

09 Apr 2015, 03:19

89

12

8,933

by: bumpbot

02 Jun 2025, 10:21

ER

If X and Y each represent single digits in the decimal above

555-605 (Medium) | Fractions and Ratios

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

harshavmrg

31 Jul 2014, 03:49

89

12

31,044

by: siddhantvarma

13 Mar 2025, 08:56

ER

At a certain high school there 20 more female sophomores

555-605 (Medium) | Fractions and Ratios

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

NoHalfMeasures

30 Sep 2014, 00:57

89

10

20,620

by: bumpbot

02 Mar 2025, 19:01

ER

What is the value of x^2 - y^2? (1) x + y = 2x (2) x + y = 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 Dec 2018, 07:32

89

6

30,938

by: KanikaJain

21 Oct 2024, 04:00

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What is the value of x + 7 ?

555-605 (Medium) | Absolute Values, Algebra

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

mehdiov

03 Apr 2013, 01:17

89

9

29,487

by: bumpbot

20 Oct 2024, 03:17

ER

Is it true that x > 0?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

viktorija

30 Nov 2014, 16:40

89

14

14,956

by: bumpbot

13 Oct 2024, 04:30

ER

A right circular cone, twice as tall as it is wide at its

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

andrewng

07 Oct 2009, 00:31

89

14

21,121

by: bumpbot

20 Jan 2023, 07:19

ER

What is the absolute difference between the cubes of two

655-705 (Hard) | Algebra +2 tags

655-705 (Hard) | Algebra, Arithmetic, Exponents hide tags

1, 2

Smita04

15 Mar 2012, 23:23

88

20

13,776

by: vallequalle

17 Mar 2026, 07:14

ER

A parabola in the coordinate geometry plane is represented by the equa

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

1, 2

Bunuel

21 Aug 2018, 20:56

88

32

18,591

by: bumpbot

07 Jan 2026, 14:55

ER

At a craft fair, Ruth's total revenue from selling 2 types of floral

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Toma13

24 Jan 2024, 02:43

88

7

12,501

by: Bunuel

10 Oct 2025, 08:14

ER

The positive integers r, s, and t are such that r is

705-805 (Hard) | Multiples and Factors, Number Properties

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

mehdiov

28 Jul 2010, 02:01

88

16

13,985

by: bumpbot

03 Sep 2025, 11:50

ER

GMAT Club Olympics 2025 (Day 6): A department store received

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

1, 2...5, 6

Bunuel

07 Jul 2025, 08:00

88

100

2,969

by: Edwin555

08 Jul 2025, 22:58

ER

Of the N candies in a bag, some are peppermint and the rest are

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

mun23

26 Mar 2013, 07:14

88

16

21,834

by: bumpbot

24 May 2025, 01:50

ER

10 students took a chemistry exam that was graded on a scale

555-605 (Medium) | Arithmetic, Statistics and Sets Problems

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

ace001

30 Jun 2010, 20:00

88

11

20,766

by: bumpbot

22 Apr 2025, 11:40

ER

If x and y are positive integers, what is the remainder when xy is div

655-705 (Hard) | Number Properties, Remainders

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

clipea12

29 Sep 2014, 23:21

88

13

17,933

by: bumpbot

02 Feb 2025, 01:38

ER

12 Days of Christmas GMAT Competition - Day 2: Warren has exactly

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

1, 2, 3, 4, 5

Bunuel

17 Dec 2024, 09:00

88

98

5,219

by: HansikaSachdeva

19 Dec 2024, 08:50

ER

What is the remainder when the positive integer x is divided

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

ricokevin

06 Sep 2014, 09:04

88

12

34,638

by: bumpbot

01 Dec 2024, 23:02

ER

If a is positive, what is the value of b?

605-655 (Medium) | Absolute Values, Algebra

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

Chembeti

25 Feb 2012, 22:30

88

7

15,116

by: bumpbot

23 Nov 2024, 07:35

ER

If M is a finite set of negative integers, is the total number of inte

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

ivyph

18 Aug 2012, 10:35

88

11

38,062

by: bumpbot

09 Nov 2024, 09:57

ER

In order to make the national tennis team, Matt

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

jogeshanand

23 Jun 2014, 22:02

88

16

13,276

by: bumpbot

04 Nov 2024, 07:21

ER

If x is a prime number, what is the value of x + c?

805+ (Hard) | Absolute Values +3 tags

805+ (Hard) | Absolute Values, Algebra, Number Properties, Roots hide tags

Bunuel

19 Dec 2018, 01:45

88

7

7,911

by: bumpbot

01 Apr 2024, 17:30

Machine A can fill an order of widgets in a hours. Machine B

805+ (Hard) | Work and Rate Problems

805+ (Hard) | Work and Rate Problems hide tags

nshang

22 Jul 2013, 06:25

88

2

30,449

by: Sachin9

16 Jan 2013, 02:08

ER

If Company M ordered a total of 50 computers and printers an

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

mjg2110

21 Jan 2016, 05:34

87

16

27,056

by: bumpbot

19 Mar 2026, 11:51

ER

All of the m men and w women who were members of club G last year are

705-805 (Hard) | Percent and Interest Problems

705-805 (Hard) | Percent and Interest Problems hide tags

user22020

17 Feb 2024, 23:04

87

13

11,391

by: bumpbot

05 Jan 2026, 06:16

ER

What is the probability that rs=r?

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

Rs1991

12 Jun 2013, 14:29

87

14

12,157

by: bumpbot

01 Dec 2025, 06:47

ER

GMAT Club Olympics 2024 (Day 4): A mixture of orange and carrot juices

805+ (Hard) | Mixture Problems

805+ (Hard) | Mixture Problems hide tags

1, 2, 3, 4, 5

Bunuel

11 Jul 2024, 07:00

87

92

10,480

by: bumpbot

19 Oct 2025, 17:59

ER

For nonnegative integers a, b, and c, what is the value of the product

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

sayansarkar

02 Mar 2015, 03:04

87

11

19,400

by: bumpbot

23 Sep 2025, 05:21

ER

If x and y are integers, is the value of x(y + 1) even?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

fozzzy

16 Mar 2013, 03:56

87

16

24,054

by: bumpbot

11 Jul 2025, 00:19

ER

The three-digit positive integer n can be written as ABC, in which

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

Bunuel

11 Nov 2014, 09:09

87

13

19,822

by: bumpbot

14 May 2025, 11:19

ER

If a is non-negative, is x^2 + y^2 > 4a ?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

Marcab

10 May 2013, 09:26

87

14

18,102

by: Bunuel

02 Apr 2025, 00:05

ER

If x is a positive integer greater than 1, is x a prime numb

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

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

Bunuel

14 Feb 2014, 02:13

87

19

15,920

by: Bunuel

29 Jul 2024, 02:01

A red box contains 7 ropes, with an average length of 60 cm per rope,

805+ (Hard) | Arithmetic, Min-Max Problems

805+ (Hard) | Arithmetic, Min-Max Problems hide tags

amanvermagmat

07 May 2018, 23:47

87

4

9,676

by: bumpbot

16 Jan 2024, 11:33

ER

If y=|x+1|/x and x!=0, is xy>0?

805+ (Hard) | Absolute Values, Algebra

805+ (Hard) | Absolute Values, Algebra hide tags

Zarrolou

12 Jul 2014, 12:43

87

11

8,776

by: Oppenheimer1945

15 Jan 2024, 08:27

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

21,404

by: bumpbot

07 Apr 2026, 03:06

ER

During a certain bicycle ride, was Sherry's average speed faster than

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

RSOHAL

23 Dec 2015, 21:03

86

12

29,205

by: bumpbot

16 Jan 2026, 04:12

ER

If y < x < z and xyz < 0, is xy > 0?

705-805 (Hard) | Arithmetic, Number Properties

705-805 (Hard) | Arithmetic, Number Properties hide tags

BrentGMATPrepNow

17 Apr 2017, 08:39

86

9

10,401

by: bumpbot

11 Dec 2025, 10:02

ER

Is z an odd number?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

ashikaverma13

08 Dec 2016, 00:51

86

7

11,481

by: bumpbot

10 Dec 2025, 02:18

ER

A certain list consists of five different integers. Is the average (ar

655-705 (Hard) | Statistics and Sets Problems

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

boubi

15 Dec 2014, 08:05

86

11

16,582

by: Bunuel

08 Oct 2025, 10:23

ER

If a, b, and c are positive integers, with a < b < c, are a, b, and c

655-705 (Hard) | Algebra, Number Properties

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

SMAbbas

02 Oct 2020, 02:07

86

13

23,151

by: bumpbot

19 Jul 2025, 18:04

ER

To raise funds, a racing team sold T-shirts imprinted with

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

guerrero25

30 Oct 2013, 16:01

86

11

21,779

by: bumpbot

16 Jul 2025, 01:02

ER

A stamp collection that has an appraised value of $600 consists of twi

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

averagedude23

10 Nov 2023, 10:26

86

6

14,895

by: KarishmaB

05 May 2025, 23:00

ER

If a merchant purchased a sofa from a manufacturer for $400 and then s

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

26 Apr 2019, 03:33

86

12

25,299

by: bumpbot

12 Mar 2025, 15:42

ER

Is x^2 + y^2 > 3z

705-805 (Hard) | Algebra, Inequalities

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

pavan2185

01 Sep 2013, 11:16

86

13

20,284

by: bumpbot

20 Jan 2025, 01:53

ER

Max has $125 consisting of bills each worth either $5 or $20

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

08 Oct 2012, 02:53

86

9

25,130

by: bumpbot

26 Sep 2024, 01:57

ER

A certain circular area has its center at point P and has

555-605 (Medium) | Coordinate Plane, Geometry

555-605 (Medium) | Coordinate Plane, Geometry hide tags

vigneshpandi

21 Sep 2010, 23:05

86

10

20,137

by: bumpbot

24 Sep 2024, 06:17

ER

If n = x^5*y^7, where x and y are positive integers greater than 1

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

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

Bunuel

29 Jul 2016, 02:20

86

14

11,158

by: bumpbot

15 Oct 2022, 10:51

ER

For a certain exam, was the standard deviation of the scores

555-605 (Medium) | Statistics and Sets Problems

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

gmat1220

09 May 2011, 00:12

85

11

11,603

by: bumpbot

18 Apr 2026, 23:38