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

78,783

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

856

24

188,556

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

487,989

by: bb

29 Aug 2025, 13:27

ER

If x = y^2, what is the value of y x? (1) x = 4 (2) x + y = 2

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

01 Oct 2015, 01:49

42

12

14,604

by: bumpbot

24 Sep 2025, 18:17

ER

What percent of an antifreeze solution was originally ethylene glycol?

605-655 (Medium) | Mixture Problems

605-655 (Medium) | Mixture Problems hide tags

Bunuel

18 Jan 2017, 06:32

42

7

6,854

by: bumpbot

27 Sep 2025, 23:55

ER

If f(x) = ax^2 + bx + c, for all x is f(x) < 0? (1) b^2 - 4ac < 0 (2)

655-705 (Hard) | Coordinate Plane, Functions and Custom Characters

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

MathRevolution

12 Jun 2017, 01:03

42

6

10,575

by: bumpbot

23 Oct 2025, 05:25

ER

Is 2^x greater than 100?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

25 Apr 2017, 04:32

42

11

16,232

by: bumpbot

20 Nov 2025, 18:23

ER

Is x/11 an integer?

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

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

fskilnik

09 Oct 2018, 14:36

42

5

5,421

by: bumpbot

25 Nov 2025, 05:06

ER

Each of the n employees at a certain company has a different annual sa

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

Bunuel

24 Jun 2018, 21:12

42

11

25,251

by: bumpbot

11 Jan 2026, 11:59

ER

If a < x < b and c < y < d, is x < y ? (1) a < c (2) b < c

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

28 Mar 2012, 09:54

42

13

18,108

by: totaltestprepNick

28 Feb 2026, 09:43

ER

The number of seats in the first row of an auditorium is 18

Sub 505 (Easy) | Sequences

Sub 505 (Easy) | Sequences hide tags

Bunuel

13 Aug 2012, 07:13

42

10

79,596

by: totaltestprepNick

01 Mar 2026, 19:05

ER

Robin split a total of $24,000 between two investments, X and Y. If in

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

RyanDe680

19 Oct 2019, 06:56

42

9

16,266

by: totaltestprepNick

04 Mar 2026, 10:38

ER -1

A stenographer is tasked with typing a certain letter. How many words

605-655 (Medium) | Work and Rate Problems

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

Bunuel

29 Sep 2015, 21:32

42

9

15,041

by: iamjatinagrawal

07 Mar 2026, 04:44

ER

Eco Wildlife Preserve contains 5x zebras and 2x lions

605-655 (Medium) | Fractions and Ratios, Word Problems

605-655 (Medium) | Fractions and Ratios, Word Problems hide tags

jlgdr

20 Sep 2013, 15:55

42

12

10,563

by: bumpbot

07 Apr 2026, 04:00

ER

There are three different ways to score in basketball. A successful

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

27 Jun 2024, 01:30

42

10

7,608

by: bumpbot

23 Apr 2026, 08:45

ER

A college admissions committee will grant a certain number

555-605 (Medium) | Combinations

555-605 (Medium) | Combinations hide tags

GMBA85

12 Jul 2013, 02:20

43

17

10,817

by: amit2k9

05 May 2011, 22:34

ER

Eight consecutive integers are selected from the integers 1

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

superpus07

06 Nov 2012, 19:05

43

9

9,591

by: anairamitch1804

01 Mar 2017, 22:39

ER

xz < 0? 1) |x+y| = |x| + |y| 2) |y+z| = |y| + |z|

705-805 (Hard) | Absolute Values

705-805 (Hard) | Absolute Values hide tags

MathRevolution

06 Nov 2017, 23:07

43

16

4,727

by: Archit3110

15 Jul 2021, 01:39

ER

What is the value of h ? (1) h^2 = 36 (2) h^2 + 12h = -36

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

A4G

17 Jul 2019, 23:52

43

13

29,618

by: bumpbot

11 Jan 2023, 07:18

If p and q are two consecutive positive integers and pq= 30x

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

subirh

12 Oct 2012, 01:10

43

9

6,197

by: bumpbot

08 Mar 2023, 23:49

ER

Is the length of the diagonal of the rectangle greater than 6^(1/2)

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

vivaslluis

01 Nov 2010, 05:41

43

4

10,803

by: Bunuel

07 May 2023, 06:45

ER

What is the value of x?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

jsphcal

19 Dec 2012, 08:12

43

5

9,256

by: bumpbot

10 May 2023, 11:22

ER

Is rw = 0?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

BrainLab

19 Sep 2015, 14:51

43

12

28,013

by: bumpbot

11 Jun 2023, 06:22

ER

For real numbers a and b, is it true that a = b?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

yudiwan

25 Jul 2016, 18:25

43

16

19,894

by: rxb266

04 Jul 2023, 02:15

ER

For any integers x and y, min(x, y) and max(x, y) denote the minimum a

605-655 (Medium) | Algebra +2 tags

605-655 (Medium) | Algebra, Functions and Custom Characters, Min-Max Problems hide tags

saswata4s

22 Mar 2018, 19:33

43

9

7,687

by: MayankThapar

05 Jul 2023, 04:05

ER

Land for a pasture is enclosed in the shape of a 6-sided figure; all

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

GMATBusters

14 Nov 2018, 09:37

43

8

7,936

by: bumpbot

08 Jul 2023, 05:35

ER

In the xy-plane, what is the slope of line l?

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

saurya_s

08 Nov 2022, 10:04

43

5

16,682

by: bumpbot

09 Jul 2023, 07:50

ER

Point (r,s) lies on the line L. Is the line s intercept with

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

dimitri92

19 Oct 2012, 03:31

43

6

10,320

by: bumpbot

07 Aug 2023, 01:37

ER

If x, y and z are integers, what is y – z?

605-655 (Medium) | Exponents

605-655 (Medium) | Exponents hide tags

kingflo

21 Jul 2013, 08:14

43

19

11,403

by: bumpbot

08 Nov 2023, 17:26

ER

x and y are positive integers. If the greatest common divisor of 2x

705-805 (Hard) | Multiples and Factors

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

BrentGMATPrepNow

03 Apr 2017, 07:43

43

5

6,671

by: bumpbot

28 Mar 2024, 10:01

ER

If a and b are non-negative integers, is ab prime?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

zxcvbnmas

05 Feb 2016, 18:10

43

8

13,273

by: bumpbot

12 Apr 2024, 12:36

ER

For nonnegative integers x and y, what is the remainder when

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

JJ2014

15 Dec 2012, 11:35

43

19

11,426

by: bumpbot

03 May 2024, 11:12

ER

How many factors does the integer X have?

805+ (Hard) | Absolute Values +2 tags

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

eladshush

04 Oct 2010, 06:16

43

13

11,337

by: bumpbot

26 Jul 2024, 05:34

ER

What is the probability that it will rain on each of the next 3 days i

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

14 Aug 2017, 01:06

43

6

23,607

by: bumpbot

16 Sep 2024, 13:57

ER

If x is an integer, what is the value of x ?

505-555 (Easy) | Algebra, Inequalities

505-555 (Easy) | Algebra, Inequalities hide tags

adkikani

08 Feb 2024, 01:11

43

8

10,926

by: bumpbot

20 Nov 2024, 11:53

ER

How many prime factors does positive integer n have?

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

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

banksy

29 Mar 2011, 12:30

43

10

14,346

by: bumpbot

07 Dec 2024, 23:25

ER

12 Days of Christmas GMAT Competition - Day 1: After closing the

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

16 Dec 2024, 09:00

43

10

5,462

by: Lizaza

16 Dec 2024, 23:06

ER

8^a*(1/4)^b = ? (1) b = 1.5a (2) a = 2

555-605 (Medium) | Algebra, Exponents

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

Bunuel

04 Nov 2014, 09:31

43

8

16,760

by: Sof22

10 Feb 2025, 09:19

ER

Twelve jurors must be picked from a pool of n potential

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

sacmanitin

20 Sep 2009, 02:32

43

10

13,387

by: bumpbot

26 Mar 2025, 05:52

ER

The members of a company’s board of directors must select a subcommitt

805+ (Hard) | Combinations

805+ (Hard) | Combinations hide tags

Bunuel

06 Jan 2020, 07:06

43

7

8,590

by: bumpbot

17 Apr 2025, 09:19

ER

Candidates A, B, and C competed in an election. This election usually

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

guddo

30 May 2024, 12:16

43

2

6,595

by: MartyMurray

06 May 2025, 05:26

ER

How many hours did Suresh travel yesterday?

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

SVaidyaraman

19 Mar 2013, 23:11

43

12

7,065

by: bumpbot

18 May 2025, 09:35

ER

If Q is a set of consecutive integers, what is the standard

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

ruturaj

02 Jul 2011, 13:43

43

13

9,185

by: bumpbot

03 Jun 2025, 02:16

ER

If R = P/Q, is R P? (1) P > 50 (2) 0 < Q 20

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

wizard

22 Feb 2012, 03:01

43

10

21,479

by: bumpbot

09 Jun 2025, 14:56

ER

If xy 0 and x^(y + 1) = 2x^y - 1, what is the value of x?

805+ (Hard) | Algebra, Exponents

805+ (Hard) | Algebra, Exponents hide tags

Bunuel

28 Aug 2017, 03:25

43

8

5,952

by: bumpbot

14 Jun 2025, 11:42

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

9,121

by: bumpbot

15 Jun 2025, 12:33

ER

For a new project, an organization is creating a three-member team

555-605 (Medium) | Non-Math Related, Word Problems

555-605 (Medium) | Non-Math Related, Word Problems hide tags

GMATCoachBen

06 Feb 2024, 18:57

43

6

9,334

by: kabirgandhi

21 Jun 2025, 01:35

ER

If the symbol § represents one of the following operations:

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

mattycen

06 Oct 2013, 11:12

43

8

13,974

by: bumpbot

21 Jun 2025, 16:45

ER

In a sequence of 13 consecutive integers, all of which are

805+ (Hard) | Multiples and Factors, Sequences

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

dimitri92

02 Jul 2013, 14:05

43

14

14,358

by: bumpbot

04 Aug 2025, 23:17

ER

Is |x - 10| > |x - 30|? (1) x > 10 (2) x > 25

505-555 (Easy) | Absolute Values, Inequalities

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

KaranB1

20 Jul 2019, 05:38

43

10

11,346

by: bumpbot

05 Aug 2025, 09:47

ER

If P is divisible by 2, is Q + 5 an integer? (1) The median

655-705 (Hard) | Statistics and Sets Problems

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

maheshsrini

02 Oct 2011, 15:45

43

12

12,694

by: bumpbot

09 Aug 2025, 21:40

ER

Today, Malvika is prepared a dish that needed one and a half

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

elegan

15 Jun 2021, 00:19

43

6

10,865

by: sspiral2556

28 Aug 2025, 09:56

If a rope is cut into three pieces of unequal length, what is the leng

505-555 (Easy) | Algebra, Word Problems

505-555 (Easy) | Algebra, Word Problems hide tags

mciatto

31 Aug 2003, 16:21

43

11

28,237

by: bumpbot

06 Sep 2025, 01:42