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

79,896

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

189,017

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

488,734

by: bb

29 Aug 2025, 13:27

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If the integer n is greater than 1, is n equal to 2?

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

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

1, 2

dimitri92

10 Apr 2012, 10:44

427

24

63,474

by: bumpbot

22 Sep 2025, 08:07

ER

In the figure above, if the shaded region is rectangular, what is the

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

gmatt1476

21 Sep 2019, 18:47

123

7

17,975

by: bumpbot

21 Sep 2025, 15:23

ER

A bank account earned 2% annual interest, compounded daily, for as lon

655-705 (Hard) | Percent and Interest Problems

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

gmatt1476

21 Sep 2019, 19:02

315

13

25,622

by: Bunuel

21 Sep 2025, 13:38

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What is the value of y ? (1) |x| ≤ y ≤ −|x| (2) |y| ≥ x ≥ −|y|

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

Bunuel

24 Jun 2020, 02:27

22

8

3,035

by: bumpbot

21 Sep 2025, 05:06

ER

At a college party, 70% of the women are wearing red t-shirts. If 60%

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

18 Jul 2018, 23:42

6

7

2,558

by: PriyanshuR

20 Sep 2025, 09:31

ER

Mary persuaded n friends to donate $500 each to her election

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

1, 2

seofah

07 Apr 2009, 15:51

324

20

55,523

by: bumpbot

20 Sep 2025, 08:10

ER

Is root{x} a prime number?

655-705 (Hard) | Absolute Values, Number Properties

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

LM

26 Jan 2012, 07:29

60

10

22,979

by: Bunuel

20 Sep 2025, 07:21

ER

A bag contains blueberry candies, each weighing 9 grams, and mango can

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

01 Jul 2018, 21:18

7

3

2,303

by: bumpbot

20 Sep 2025, 03:06

ER

What is the value of integer x?

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

1, 2

jashshah

28 Feb 2015, 07:08

93

25

21,201

by: bumpbot

20 Sep 2025, 01:38

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If 1@1 = 1, is −2@−2 = 1 ? (1) 1@-1 = 1 (2) 0@0 = 0

655-705 (Hard) | Functions and Custom Characters

655-705 (Hard) | Functions and Custom Characters hide tags

Bunuel

06 Apr 2020, 04:04

23

7

4,689

by: bumpbot

19 Sep 2025, 08:44

ER

Three baseball teams, A, B, and C, play in a seasonal league

655-705 (Hard) | Fractions and Ratios

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

kidderek

06 Jul 2012, 01:51

59

11

22,103

by: bumpbot

18 Sep 2025, 11:44

ER

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

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

Bunuel

01 Apr 2020, 02:30

14

9

4,142

by: bumpbot

18 Sep 2025, 08:13

ER

If x is a prime number, what is the number of factors of 75x?

655-705 (Hard) | Multiples and Factors

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

Bunuel

22 May 2023, 09:30

7

1,990

by: bumpbot

18 Sep 2025, 05:57

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For integers a, b, x, and y, ab + yb = xy - yb. If a - b = 0 and x + y

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

03 Feb 2015, 09:43

59

13

16,775

by: dhruvie

18 Sep 2025, 05:03

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Is |x| > x ? (1) x > |y| (2) x is a non-negative integer

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

chetan2u

21 Feb 2017, 07:54

8

7

3,480

by: bumpbot

18 Sep 2025, 04:36

ER

11 New OG Logic-Based DS for GMAT Focus; Analysis of OG22 vs. 2024

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

GMATCoachBen

10 Mar 2024, 22:35

20

3

6,502

by: bumpbot

17 Sep 2025, 23:51

ER

What is the value of positive integer p? (1) 300 multiplied by p is

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

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

Bunuel

28 Jun 2023, 01:30

3

1,391

by: bumpbot

17 Sep 2025, 13:04

ER

What is the value of the two-digit number TU

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

fireinbelly

30 Apr 2013, 05:45

20

6

8,626

by: bumpbot

17 Sep 2025, 12:58

ER

The total volume of a wooden wine container and a plastic wine contain

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

15 Sep 2021, 01:30

7

5

2,962

by: bumpbot

17 Sep 2025, 09:53

ER

Until this coming April, the price of all Albanian products will equal

655-705 (Hard) | Percent and Interest Problems

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

DisciplinedPrep

26 Aug 2020, 23:32

9

3

2,495

by: IanStewart

17 Sep 2025, 08:11

ER

In a group of 250 adults, is the number of married (not necessarily to

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

20 Feb 2021, 09:10

10

9

2,404

by: bumpbot

17 Sep 2025, 02:58

ER

If k is a 3 digit positive number, what is the hundred digit

655-705 (Hard) | Fractions and Ratios

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

anilnandyala

09 Nov 2010, 06:19

161

11

21,961

by: bumpbot

17 Sep 2025, 00:37

ER

The top surface area of a square tabletop was changed so that one of

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

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

TheRob

07 Sep 2009, 06:41

161

18

31,191

by: Bunuel

17 Sep 2025, 00:22

ER

2001, the closing price of stock A and stock B are the same.

655-705 (Hard) | Percent and Interest Problems

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

mehdiov

20 Aug 2010, 11:51

80

8

14,399

by: bumpbot

16 Sep 2025, 10:40

ER

In the sequence of nonzero numbers t1, t2, t3, , tn, , tn+1

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

quantum

18 Jun 2008, 10:23

58

10

33,697

by: bumpbot

16 Sep 2025, 09:23

ER

If n is a positive integer, what is the units digit of n^28? (I) n is

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Russ19

28 Apr 2020, 09:08

11

3

1,662

by: bumpbot

16 Sep 2025, 08:46

ER

If xy 0, is x^y > 0 ?

655-705 (Hard) | Exponents +2 tags

655-705 (Hard) | Exponents, Inequalities, Roots hide tags

Bunuel

20 Jul 2014, 11:23

63

11

11,953

by: bumpbot

16 Sep 2025, 06:24

ER

How many different prime factors does x have?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Harley1980

13 Apr 2015, 00:57

12

5

3,973

by: bumpbot

15 Sep 2025, 13:11

ER

A computer user wants to save 6 files, each of a different size, on a

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Swagatalaxmi

11 May 2024, 10:00

42

11

7,492

by: bumpbot

15 Sep 2025, 10:24

ER

12 Days of Christmas GMAT Competition - Day 7: A jar contains only

655-705 (Hard) | Probability, Word Problems

655-705 (Hard) | Probability, Word Problems hide tags

Bunuel

19 Dec 2023, 07:00

31

8

5,795

by: Bunuel

15 Sep 2025, 05:30

ER

In the first year of a pyramid scheme, John convinced y of his friend

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Nevernevergiveup

26 Sep 2016, 10:06

22

6

5,910

by: Bunuel

15 Sep 2025, 04:21

ER

In the same period of time that a sports car

655-705 (Hard) | Distance and Speed Problems

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

pablovaldesvega

26 Nov 2023, 06:12

87

12

13,868

by: KarishmaB

15 Sep 2025, 00:40

ER

Each of the 20 people working in a certain office contributed either

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

03 Aug 2023, 05:00

156

5

27,666

by: KarishmaB

15 Sep 2025, 00:26

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

118

11

25,021

by: KarishmaB

15 Sep 2025, 00:08

ER

If the graph of the function x=y^29 on the xy-coordinate plane inters

655-705 (Hard) | Coordinate Plane, Min-Max Problems

655-705 (Hard) | Coordinate Plane, Min-Max Problems hide tags

Bunuel

27 Jan 2015, 07:46

57

10

10,307

by: bumpbot

15 Sep 2025, 00:08

ER

What is the remainder when the positive three-digit number xyz is divi

655-705 (Hard) | Multiples and Factors, Remainders

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

Bunuel

31 Jan 2022, 02:30

17

4

3,347

by: bumpbot

14 Sep 2025, 19:25

ER

Driving at their respective constant speeds along the same route,

655-705 (Hard) | Distance and Speed Problems

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

mbaguy2025

03 Dec 2023, 06:03

128

9

14,140

by: Bunuel

14 Sep 2025, 12:01

ER

If x and y are the standard deviations of two different data sets, is

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

29 Apr 2018, 09:24

20

8

3,987

by: Bunuel

14 Sep 2025, 01:55

ER

In a set of 5 numbers, if the largest number is 3 more than

655-705 (Hard) | Statistics and Sets Problems

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

rajatr

25 Apr 2013, 03:19

20

7

5,731

by: bumpbot

14 Sep 2025, 01:12

ER

GMAT Club Around The World!!! Jane and Chris work at a factory produci

655-705 (Hard) | Work and Rate Problems

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

Bunuel

31 Dec 2020, 21:00

6

8

4,245

by: bumpbot

13 Sep 2025, 16:40

ER

From a group consisting of ballet dancers from Italy, Germany, and

655-705 (Hard) | Combinations

655-705 (Hard) | Combinations hide tags

eshan429

04 Sep 2014, 20:29

31

8

8,422

by: bumpbot

13 Sep 2025, 07:15

ER

How many people in Town X read neither the World newspaper nor the Glo

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

gmatt1476

21 Sep 2019, 15:39

132

14

21,183

by: bumpbot

12 Sep 2025, 12:54

ER

If m and n are integers, is (mn + 2)(mn + 3)(mn + 4) divisible by 12?

655-705 (Hard) | Multiples and Factors

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

Bunuel

26 Aug 2020, 23:37

18

12

5,831

by: bumpbot

12 Sep 2025, 07:32

ER

If m is a positive integer, is m odd?

655-705 (Hard) | Multiples and Factors

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

Bunuel

31 Dec 2020, 01:15

7

6

3,950

by: bumpbot

12 Sep 2025, 06:57

ER

What is the median value of the set R, if for every term in

655-705 (Hard) | Statistics and Sets Problems

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

rochak22

05 Jul 2021, 00:40

113

19

36,683

by: bumpbot

11 Sep 2025, 18:01

ER

Is the positive integer N a perfect square? (1) The number

655-705 (Hard) | Exponents +2 tags

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

1, 2

mbaMission

30 Jul 2012, 04:36

498

28

69,101

by: bumpbot

11 Sep 2025, 08:56

ER

What is the remainder when the positive integer n is divided by 6?

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

17 Nov 2023, 07:14

8

2

1,809

by: bumpbot

11 Sep 2025, 07:56

ER

Set X and set Y have 10 numbers each. Is standard deviation of set X

655-705 (Hard) | Statistics and Sets Problems

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

exam_explorer

11 Oct 2023, 03:42

7

5

1,942

by: bumpbot

11 Sep 2025, 07:33

ER

Is x² + y² > -2xy? (1) xy > 0 (2) x - y = 4

655-705 (Hard) | Algebra, Inequalities

655-705 (Hard) | Algebra, Inequalities hide tags

BrentGMATPrepNow

07 Mar 2023, 09:14

3

4

3,128

by: bumpbot

11 Sep 2025, 07:04

ER

What is the sum of the first four terms of sequence S?

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

AbdurRakib

01 Jul 2016, 04:57

95

10

27,055

by: bumpbot

11 Sep 2025, 06:40