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

79,575

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

188,959

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

488,640

by: bb

29 Aug 2025, 13:27

ER

12 Days of Christmas GMAT Competition - Day 4: If x and y are prime

805+ (Hard) | Exponents, Number Properties

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

Bunuel

17 Dec 2022, 07:00

17

7

4,454

by: bumpbot

26 Jan 2026, 04:44

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If the greatest common factor of two integers, m and n, is

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

rxs0005

20 Mar 2011, 09:52

21

12

11,272

by: bumpbot

25 Jan 2026, 17:00

ER

Each of the five divisions of a certain company sent representatives

805+ (Hard) | Statistics and Sets Problems

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

gmatt1476

21 Sep 2019, 15:49

154

13

21,652

by: bumpbot

25 Jan 2026, 08:14

ER

Is p + q = 0 ?

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

Asifpirlo

09 Aug 2013, 02:51

17

6

4,012

by: bumpbot

25 Jan 2026, 00:22

ER

A child bought candy that cost 85 cents. If the child only had quarter

805+ (Hard) | Algebra, Word Problems

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

Bunuel

29 Mar 2017, 23:44

21

8

7,848

by: Vivek1707

24 Jan 2026, 13:39

ER

Scientists have discovered a distant exoplanet

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Gmat750aspirant

15 Mar 2025, 09:55

6

4

1,003

by: prathamk111

24 Jan 2026, 12:25

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((x+y+1)/(x+y))((x+z+2)/(x+z))((x+w+3)/(x+w))>8?

805+ (Hard) | Algebra, Inequalities

805+ (Hard) | Algebra, Inequalities hide tags

fskilnik

26 Mar 2019, 10:15

6

2

1,565

by: bumpbot

23 Jan 2026, 23:16

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Is integer x square of an integer? 1) Sum of all the factors of x is

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

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

GMATinsight

26 Feb 2019, 06:07

5

6

1,612

by: bumpbot

23 Jan 2026, 23:00

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A bicycle store earned a different percent profit on each of the three

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

06 Apr 2022, 04:00

15

2

3,724

by: bumpbot

22 Jan 2026, 13:04

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Last year in Trenton, 35 percent of the women and 58 percent of the

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

kevincan

18 Jan 2026, 04:09

7

2

425

by: kevincan

22 Jan 2026, 00:19

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Joanna worked 5 shifts at a used car lot last week. Joanna earns $200

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

06 Apr 2022, 04:30

14

5

3,460

by: bumpbot

21 Jan 2026, 09:18

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When tickets to a popular concert went on sale, a group of f

805+ (Hard) | Statistics and Sets Problems, Word Problems

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

nidhi12

04 Jun 2014, 05:27

18

4

4,408

by: bumpbot

21 Jan 2026, 02:06

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Two consecutive positive integers are divided by 25. What is the sum

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

pushpitkc

01 Oct 2018, 06:38

22

3

4,728

by: bumpbot

21 Jan 2026, 01:49

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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

5,433

by: bumpbot

21 Jan 2026, 01:46

ER

What is the value of xy?

805+ (Hard) | Exponents, Number Properties

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

swati007

06 Mar 2014, 00:03

49

10

10,331

by: bumpbot

20 Jan 2026, 02:01

ER

Machine A, operating alone at its constant rate, produces 50 feet of

805+ (Hard) | Distance and Speed Problems

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

rohan2345

05 Jan 2019, 02:14

29

5

4,592

by: vasu1104

19 Jan 2026, 14:20

ER

A pumpkin patch contains x pumpkins that weigh 10 pounds each and y pu

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

02 May 2026, 10:09

8

4

4,077

by: bumpbot

19 Jan 2026, 03:18

ER

Does the city of Taraglo rank among the five largest cities of Aplandi

805+ (Hard) | Percent and Interest Problems, Word Problems

805+ (Hard) | Percent and Interest Problems, Word Problems hide tags

kevincan

16 Jan 2026, 05:14

3

380

by: kevincan

18 Jan 2026, 13:42

ER

What is the value of the positive integer a?

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

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

Bunuel

29 Jan 2015, 08:28

55

16

12,262

by: Vivek1707

17 Jan 2026, 06:30

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In a gas sample, there are, rounded to the nearest order of magnitude

805+ (Hard) | Exponents, Word Problems

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

guddo

31 May 2025, 15:58

63

8

3,779

by: Bunuel

17 Jan 2026, 00:15

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If m and k are non-zero integers and if y^(m+k) = y^m, what is the

805+ (Hard) | Exponents, Number Properties

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

rxs0005

24 Mar 2011, 07:54

31

17

6,231

by: bumpbot

14 Jan 2026, 23:30

ER

a family has only one son. The father says "After x

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

prince00113

27 Jan 2018, 14:06

9

6

2,137

by: bumpbot

14 Jan 2026, 23:19

ER

GMAT CLUB OLYMPICS: If x is a positive integer greater than 3 and x^4

805+ (Hard) | Multiples and Factors, Remainders

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

Bunuel

27 Aug 2021, 09:05

17

3

5,587

by: egmat

14 Jan 2026, 22:10

ER

In a group of 3 girls and 2 boys, the average height is

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

souvik101990

12 Apr 2018, 13:26

17

10

4,268

by: bumpbot

14 Jan 2026, 00:05

ER

At a particular store, candy bars are normally priced at $1.

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

trex16864

13 Jan 2013, 03:16

81

12

24,448

by: bumpbot

13 Jan 2026, 09:46

ER

The annual rainfall in a city over the past 50 years is its historical

805+ (Hard) | Graphs and Illustrations, Statistics and Sets Problems

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

guddo

30 May 2024, 13:35

82

9

10,773

by: bumpbot

13 Jan 2026, 08:08

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If x and y are positive and x + y = 20, is y > x?

805+ (Hard) | Algebra +3 tags

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

chetan2u

02 Jun 2018, 21:39

8

4

2,344

by: bumpbot

13 Jan 2026, 00:29

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If rs 0, does 1/r + 1/s = 1 (1) rs = 1 (2) s + r = 2.5 Did

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

rxs0005

12 Dec 2010, 09:05

19

7

4,479

by: bumpbot

13 Jan 2026, 00:18

ER

Yvonne purchased an item and the total cost, including tax, was less.

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

MrWhite

08 Nov 2023, 00:21

179

12

19,693

by: Goldenfuture

12 Jan 2026, 00:02

ER

In a spelling competition, competitors were required to spell 108

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

Bunuel

30 May 2024, 01:30

10

7

1,801

by: bumpbot

11 Jan 2026, 04:39

ER

What is the difference between the mode and the median of a list of in

805+ (Hard) | Statistics and Sets Problems

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

Aabhash777

12 Jan 2023, 01:59

4

2

3,791

by: bumpbot

10 Jan 2026, 15:45

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If a bus took 4 hours to travel from town A to town B, what was its

805+ (Hard) | Distance and Speed Problems

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

Bunuel

09 May 2023, 13:49

17

5

8,145

by: bumpbot

10 Jan 2026, 05:15

ER

Tom is going to move, he has three kinds of boxes: large, medium, and

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

30 Dec 2020, 03:00

17

3

3,440

by: bumpbot

10 Jan 2026, 00:30

ER

Daniel has a drawer full of 59 packets, each containing a marker

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

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

amanvermagmat

22 Mar 2018, 07:37

5

2,324

by: bumpbot

09 Jan 2026, 23:19

ER

We are given two integers a and b, such that, 2 < a < b and b is not a

805+ (Hard) | Multiples and Factors, Remainders

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

guerrero25

01 Apr 2013, 01:05

11

5

4,950

by: bumpbot

08 Jan 2026, 23:01

ER

A number of ties are individually packaged in unmarked boxes. What is

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

08 Mar 2018, 21:19

17

13

4,473

by: Bunuel

08 Jan 2026, 12:39

ER

If 2 different representatives are to be selected at random from a gro

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

Bunuel

04 Mar 2014, 00:17

555

19

59,848

by: Rickooreoisb

07 Jan 2026, 21:57

ER

In the x-y plane, PQ is a straight line. The coordinate of point P is

805+ (Hard) | Coordinate Plane, Geometry

805+ (Hard) | Coordinate Plane, Geometry hide tags

EgmatQuantExpert

07 Mar 2019, 23:04

14

10

5,356

by: bumpbot

07 Jan 2026, 15:42

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

18,645

by: bumpbot

07 Jan 2026, 14:55

ER

In the coordinate plane, region J is defined by all the points (x,y)

805+ (Hard) | Coordinate Plane

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Bunuel

06 Jun 2017, 11:46

44

10

6,888

by: bumpbot

07 Jan 2026, 14:47

ER

For a finite sequence of nonzero integers, the percentage of variation

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

filipembribeiro

25 Jul 2021, 11:19

11

2

2,214

by: pappal

07 Jan 2026, 14:05

ER

If 10^a * 3^b * 5^c = 450^n, what is the value of c?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

05 Apr 2016, 07:36

57

16

6,810

by: bumpbot

07 Jan 2026, 07:06

No wonder Federer lost in his Olympic tennis final, he

805+ (Hard) | Arithmetic, Word Problems

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

EvaJager

06 Aug 2012, 06:46

12

13

4,505

by: bumpbot

05 Jan 2026, 22:46

ER

The table above shows the results of a survey of 100 voters who each r

805+ (Hard) | Overlapping Sets

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Nayyar29

12 Jun 2024, 23:55

31

3

5,557

by: bumpbot

05 Jan 2026, 09:53

Committees X, Y and Z have at least three members each. No two of thes

805+ (Hard) | Statistics and Sets Problems

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

PKN

11 Aug 2018, 04:51

7

2,358

by: bumpbot

05 Jan 2026, 09:48

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Is x^2 - y^2 > 0? (1) x^2 - y^2 > x - y (2) x^2 - y^2 < x + y

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

BillyZ

21 Mar 2017, 18:52

29

11

8,454

by: Vivek1707

05 Jan 2026, 06:40

ER

In the diagram above each of the letters represents one of the digits

805+ (Hard) | Arithmetic

805+ (Hard) | Arithmetic hide tags

Bunuel

10 Apr 2017, 02:27

11

7

3,121

by: bumpbot

04 Jan 2026, 03:29

ER

Bob and Wendy left home to walk together to a restaurant for

805+ (Hard) | Distance and Speed Problems

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

1, 2

sondenso

03 Mar 2008, 23:46

334

21

52,043

by: bumpbot

04 Jan 2026, 00:31

ER

Joe earned x dollars the first day he worked in December, where x is a

805+ (Hard) | Functions and Custom Characters

805+ (Hard) | Functions and Custom Characters hide tags

Scon

24 Jul 2019, 22:09

32

8

7,055

by: bumpbot

03 Jan 2026, 23:49

ER

Guests at a recent party ate a total of fifteen hamburgers.

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

kairoshan

18 Nov 2009, 21:47

236

14

46,303

by: bumpbot

03 Jan 2026, 11:10