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

79,127

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

857

24

188,759

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

488,349

by: bb

29 Aug 2025, 13:27

ER

The height of a model rocket in feet, x, t seconds after its launch is

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

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

Bunuel

28 Nov 2019, 00:42

16

5

3,120

by: bumpbot

24 Nov 2025, 11:09

ER

Did the population of Country P increase by more than 25% from 2000 to

Sub 505 (Easy) | Arithmetic +2 tags

Sub 505 (Easy) | Arithmetic, Fractions and Ratios, Percent and Interest Problems hide tags

EMPOWERgmatRichC

27 Oct 2024, 10:37

16

4

4,805

by: bumpbot

28 Nov 2025, 09:49

There are 22 items on a restaurant menu. A menu item cannot contain

655-705 (Hard) | Non-Math Related

655-705 (Hard) | Non-Math Related hide tags

ADisHere

12 Jan 2025, 02:03

16

2

2,456

by: StanleyVu

01 Dec 2025, 01:29

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A certain company paid bonuses of $125 to each of its executive employ

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

09 Dec 2014, 15:24

16

8

13,683

by: bumpbot

09 Dec 2025, 10:39

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a, b, c, d, and e are five numbers such that a b c d e and e -

805+ (Hard) | Statistics and Sets Problems

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

Bunuel

15 Feb 2021, 01:15

16

7

10,798

by: bumpbot

12 Dec 2025, 07:11

ER

If S is a set of distinct positive multiples of 5, what is the smalles

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

24 Aug 2015, 23:42

16

7

4,734

by: bumpbot

17 Dec 2025, 19:20

ER

A box contains only white balls and black balls. What is the probabili

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

parkhydel

28 Apr 2020, 04:14

16

4

12,971

by: bumpbot

20 Dec 2025, 13:22

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What is the value of a? (1) |a|−|b|=0 (2) |a|+|b|=0

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

ANMKGMAT2018

19 Sep 2018, 02:40

16

3

5,428

by: bumpbot

21 Dec 2025, 06:29

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What are all the important considerations for making accurate

555-605 (Medium) | Non-Math Related

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

guddo

14 Aug 2024, 09:23

16

3

4,611

by: steffe440

09 Jan 2026, 07:07

ER

There are B number of boys and G number of girls in a class. What is

605-655 (Medium) | Arithmetic, Percent and Interest Problems

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

amanvermagmat

13 Aug 2018, 22:45

16

3

5,444

by: bumpbot

10 Jan 2026, 15:25

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In the sequence t_1, t_2, t_3, t_4 . . . t_n, , what is the value of

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

BrentGMATPrepNow

05 Mar 2022, 10:42

16

3

3,080

by: bumpbot

31 Jan 2026, 02:12

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At a certain restaurant, if each hamburger costs the same am

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

fozzzy

24 Feb 2013, 06:25

16

5

18,037

by: bumpbot

10 Feb 2026, 03:57

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Is c the median of a, b and c ? (1) b - c = a (2) c = a how

605-655 (Medium) | Statistics and Sets Problems

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

shrive555

19 Oct 2010, 10:11

16

6

10,667

by: bumpbot

25 Feb 2026, 04:48

ER

A vendor bought a 40-pound case of bananas for $30.

805+ (Hard) | Mixture Problems

805+ (Hard) | Mixture Problems hide tags

MartyMurray

07 Mar 2026, 09:15

16

4

1,786

by: bumpbot

25 Feb 2026, 15:24

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

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

07 Jan 2014, 05:19

16

4

13,444

by: totaltestprepNick

26 Feb 2026, 13:01

ER

Some computers at a certain company are Brand X and the rest are Brand

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

27 Dec 2013, 05:41

16

6

15,815

by: totaltestprepNick

02 Mar 2026, 07:34

ER

In an experiment, half of the participants received only drug X, while

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

27 Oct 2021, 02:00

16

7

5,140

by: bumpbot

08 Mar 2026, 09:10

ER

A certain library charges a flat fee of $5 for any overdue book for th

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

01 Sep 2021, 06:30

16

3

4,261

by: bumpbot

08 Mar 2026, 09:46

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

9,068

by: bumpbot

17 Mar 2026, 20:12

ER

If the average (arithmetic mean) of a, b and c is m, is their standard

555-605 (Medium) | Statistics and Sets Problems

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

MathRevolution

08 Aug 2018, 02:10

16

8

6,583

by: bumpbot

07 Apr 2026, 17:49

ER

Joe took 20 equally weighted quizzes for his biology class and receive

605-655 (Medium) | Statistics and Sets Problems, Word Problems

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

Bunuel

02 Dec 2019, 01:24

16

4

2,705

by: KarishmaB

07 Apr 2026, 22:03

ER

Set X consists of exactly four distinct integers that are greater than

805+ (Hard) | Number Properties, Statistics and Sets Problems

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

Sajjad1994

29 Oct 2020, 12:02

16

4

3,237

by: bumpbot

17 Apr 2026, 00:52

ER

A certain chef is combining two mixtures to create a soup.

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

Bunuel

14 Oct 2024, 01:30

16

3

2,146

by: bumpbot

20 Apr 2026, 05:19

ER

If s is the sequence of more than two observations

805+ (Hard) | Statistics and Sets Problems

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

PyjamaScientist

03 Oct 2021, 00:30

16

3

1,903

by: bumpbot

23 Apr 2026, 01:37

ER

$20,000 was deposited into bank, with interest compounded quarterly.

655-705 (Hard) | Percent and Interest Problems

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

frombelarus

19 Apr 2020, 11:41

16

4

3,763

by: bumpbot

29 Apr 2026, 09:29

ER

Of 100 dogs at an animal shelter, some are doxin and the

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

rxs0005

10 Nov 2010, 04:47

16

10

3,657

by: bumpbot

07 May 2026, 08:47

ER

If A, B & C can build a wall in 4 hours,working together,

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innocous

02 Sep 2013, 12:39

17

11

7,801

by: Amateur

30 Dec 2013, 15:21

ER

Two racecar drivers, Abernathy and Berdoff, are driving

Sub 505 (Easy) | Distance and Speed Problems

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

asiriel

20 Jun 2013, 04:00

17

7

12,705

by: NoHalfMeasures

14 Apr 2014, 06:53

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If n is a positive integer, and sqrt[(45)(14)(7^n)-(15)(7^(n-1))(54)]

Poor Quality

Poor Quality hide tags

wimpytots

02 Sep 2015, 19:30

17

10

4,859

by: ENGRTOMBA2018

04 Sep 2015, 04:55

ER

A clothing store acquired an item at a cost of x dollars and

505-555 (Easy) | Algebra, Word Problems

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

chan4312

06 Aug 2008, 12:12

17

9

23,376

by: Bunuel

27 Oct 2016, 21:13

ER

What is area of triangle ABC?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

kanigmat011

18 Feb 2015, 03:20

17

11

4,205

by: bumpbot

08 Jul 2017, 02:01

What is the value of p + q + r

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Poor Quality hide tags

gsingh0711

09 Aug 2018, 08:31

17

14

9,738

by: PKN

09 Aug 2018, 22:41

ER

Is x^(k+1) > x^k?

705-805 (Hard) | Absolute Values +2 tags

705-805 (Hard) | Absolute Values, Exponents, Inequalities hide tags

alphonsa

18 Aug 2014, 09:47

17

6

3,812

by: GyMrAT

20 Sep 2018, 23:10

ER

If P & Q are integers such that |P|Q=4|P|Q=4 , is P negative? (1) |P|+

705-805 (Hard) | Absolute Values, Algebra

705-805 (Hard) | Absolute Values, Algebra hide tags

niteshwaghray

23 May 2017, 00:59

17

5

2,660

by: bumpbot

17 May 2019, 05:57

ER

The mean of a set of n consecutive positive integers is m1. One of the

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

Bunuel

06 Dec 2019, 03:05

17

6

3,426

by: kiendt

08 Dec 2019, 07:14

ER

Is standard deviation of Set A > the standard deviation of Set B? 1)

555-605 (Medium) | Statistics and Sets Problems

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

GMATinsight

11 Aug 2018, 22:47

17

16

5,212

by: bumpbot

28 Dec 2019, 08:57

ER

In the figure above, a circle is inscribed in a square. What is the ar

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

26 Aug 2015, 00:47

17

13

7,394

by: bumpbot

06 Apr 2020, 13:10

ER

Is a^3-b^2>0?

705-805 (Hard) | Absolute Values, Inequalities

705-805 (Hard) | Absolute Values, Inequalities hide tags

rajarshee

07 May 2017, 02:34

17

5

3,034

by: exc4libur

09 Jun 2020, 05:26

ER

If M < N, is M^2-MN < 0?

805+ (Hard) | Algebra, Inequalities

805+ (Hard) | Algebra, Inequalities hide tags

GMATBeast

24 Dec 2013, 23:11

17

16

5,517

by: bumpbot

06 Oct 2020, 23:27

ER

In the figure above, a rectangle is divided into smaller rectangles

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

08 Feb 2018, 06:26

17

8

5,884

by: Bunuel

29 Nov 2020, 10:18

ER

If (x - y)^2 = x^2 - y^2, what is the value of the non-zero integer xy

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

14 Jan 2020, 01:46

17

11

12,735

by: Basshead

03 Dec 2020, 17:20

ER

If a and b are nonzero numbers, Is a-b>0?

605-655 (Medium) | Absolute Values, Inequalities

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

DHAR

30 Jul 2017, 11:24

17

3

5,682

by: CEdward

02 Feb 2021, 16:02

ER

If 50,000 < x < 60,000 and x is an integer, what is x?

555-605 (Medium) | Fractions and Ratios, Multiples and Factors

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

Bunuel

28 Jan 2015, 08:01

17

8

6,423

by: vidyasagar151

07 Jul 2021, 22:56

ER

Are the roots of quadratic equations equal?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

aa008

04 Oct 2018, 01:40

17

4

4,226

by: TANYA27

29 Jul 2021, 19:54

ER

If x and y are integers, is x^y<y^x ?

705-805 (Hard) | Exponents

705-805 (Hard) | Exponents hide tags

dreambeliever

10 Jun 2011, 07:27

17

19

6,406

by: bumpbot

01 Aug 2021, 06:12

ER

If x and y are positive numbers, is x > y?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

Bunuel

14 Jun 2016, 02:00

17

6

4,219

by: gogokevin13

02 Aug 2021, 06:31

ER

a is an odd integer and a ≠ -b. Is a^2/|b+a| > a-b ?

805+ (Hard) | Absolute Values, Inequalities

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

nades09

21 Aug 2017, 08:24

17

11

6,245

by: Fdambro294

07 Aug 2021, 17:31

ER

k is a positive integer. Is k prime?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

fireinbelly

30 Apr 2013, 03:57

17

8

5,507

by: bumpbot

10 Aug 2021, 10:37

ER

If x and y are integers is y odd? (1) y^(2x) +8 is odd (2) y^7x is odd

805+ (Hard) | Exponents, Number Properties

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

Bunuel

11 Nov 2020, 01:15

17

4

2,252

by: rvgmat12

03 Sep 2021, 01:17

ER

If both m and n are positive integers, is m a multiple of n?

555-605 (Medium) | Multiples and Factors

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

Bunuel

18 Jul 2018, 02:46

17

5

4,306

by: Bunuel

08 Nov 2021, 06:13