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

78,768

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

856

24

188,549

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

487,977

by: bb

29 Aug 2025, 13:27

ER

In year x, it rained on 40% of all Mondays and 20% of all Tuesdays. On

655-705 (Hard) | Percent and Interest Problems

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

Bunuel

29 Sep 2021, 01:00

34

7

8,751

by: SamiMartinez

26 Oct 2025, 12:48

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If x is a positive integer and <z> is the greatest multiple of ten les

805+ (Hard) | Exponents, Sequences

805+ (Hard) | Exponents, Sequences hide tags

pichitrat

17 Mar 2019, 04:05

34

5

4,510

by: bumpbot

09 Nov 2025, 12:04

ER

Rick can solve x algebra problems per minute. Matt can solve y calculu

605-655 (Medium) | Inequalities, Work and Rate Problems

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

Bunuel

04 Feb 2015, 08:45

34

17

10,022

by: bumpbot

29 Nov 2025, 08:44

ER

12 Days of Christmas GMAT Competition 2025 - Day 4: Each of the boxes

805+ (Hard) | Statistics and Sets Problems

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

1, 2, 3, 4

Bunuel

18 Dec 2025, 09:00

34

65

1,608

by: sriharsha4444

19 Dec 2025, 08:56

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If d is a positive integer, is d^1/2 an integer?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

26 Feb 2014, 02:26

34

5

19,292

by: bumpbot

27 Dec 2025, 01:56

ER

Jones has worked at Firm X twice as many years as Green, and Green has

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

26 Apr 2019, 02:58

34

9

17,900

by: bumpbot

17 Jan 2026, 05:50

ER

There are 10 books lying on a table. Is the proba

655-705 (Hard) | Min-Max Problems, Number Properties

655-705 (Hard) | Min-Max Problems, Number Properties hide tags

1, 2

chetan2u

24 Jan 2017, 06:08

34

20

8,084

by: bumpbot

27 Jan 2026, 13:19

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If i and j are integers, is i + j an even integer?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

06 Aug 2012, 03:13

34

11

21,973

by: totaltestprepNick

23 Feb 2026, 13:40

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Are the integers a, b and c consecutive?

605-655 (Medium) | Statistics and Sets Problems

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

kdatt1991

03 Feb 2015, 18:17

34

8

12,863

by: bumpbot

04 Mar 2026, 11:45

ER

Ten slips of paper, numbered 1 through 10, are placed in a bag. If thr

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

05 Jun 2021, 04:40

34

5

8,463

by: Adit_

13 Mar 2026, 23:30

ER

If 50 people paid a total of $110 for tickets to attend a certain high

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

guddo

24 Jan 2024, 04:15

34

3

8,599

by: keshubhturakhia

26 Apr 2026, 04:50

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Is x^2+y^2 divisible by 5?

Poor Quality

Poor Quality hide tags

ctrlaltdel

14 Nov 2009, 18:56

35

13

15,945

by: deeuk

10 Nov 2014, 01:27

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If x > 0, does f(x^2) = f(x)^2 ? (1) f(x) = x (2) x = 9

555-605 (Medium) | Algebra, Functions and Custom Characters

555-605 (Medium) | Algebra, Functions and Custom Characters hide tags

Bunuel

07 Mar 2016, 03:25

35

6

17,818

by: GMATWhizTeam

24 Apr 2022, 07:59

ER

What is b in the circle shown above?

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

godot53

27 Feb 2017, 22:50

35

19

8,100

by: bumpbot

16 Sep 2022, 21:06

ER

What is the volume of a certain cube?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

joaomario

12 Aug 2014, 02:23

35

5

20,204

by: bumpbot

03 Dec 2022, 00:14

ER

12 Days of Christmas GMAT Competition - Day 1: A 10m stick is broken i

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

14 Dec 2022, 07:00

35

7

5,124

by: Bunuel

15 Dec 2022, 06:33

ER

A jar has 10 marbles, a mix of red and white. Two marbles are randomly

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

Bunuel

24 Apr 2026, 11:42

35

7

8,065

by: bumpbot

21 Mar 2023, 08:12

ER

If k does not equal -1, 0 or 1, does the point of intersection of line

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

anceer

13 Dec 2014, 03:58

35

5

6,208

by: bumpbot

05 Jul 2023, 01:26

ER

A trip coordinator bought a certain number of $47 tickets

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

anin

20 Jun 2010, 15:19

35

7

8,796

by: bumpbot

14 Aug 2023, 10:12

ER

If r,s and t are integers, is r+s =square root of t

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

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

Princ

22 May 2018, 03:47

35

14

4,411

by: bumpbot

25 Aug 2023, 02:14

ER

Nina and Teri are playing a dice game. Each girl rolls a

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

ctrlaltdel

15 Nov 2009, 22:17

35

9

12,469

by: bumpbot

30 Aug 2023, 08:26

ER

Is Quadrilateral ABCD a Rhombus? 1) Diagonals of ABCD intersect each

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

GMATinsight

09 Nov 2018, 00:14

35

11

6,637

by: bumpbot

05 Sep 2023, 13:20

ER

What is the value of p ? (1) |p |p|| = 3 (2) 2|p| = 3

605-655 (Medium) | Absolute Values

605-655 (Medium) | Absolute Values hide tags

Bunuel

29 Nov 2018, 02:13

35

12

5,895

by: bumpbot

04 Oct 2023, 16:10

ER

Is a > b^2 ? (1) a>b^4 (2) a> b^(1/2)

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Awli

08 Aug 2017, 04:08

35

10

4,571

by: bumpbot

23 Oct 2023, 16:04

ER

In the figure, angle C and angle M are right angles, and KL = 10. If

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

dflorez

28 Dec 2015, 13:54

35

5

12,060

by: bumpbot

28 Oct 2023, 01:28

ER

P, Q, R , S, T, U are positive integers, such that S/P + T/Q = U/R, is

805+ (Hard) | Algebra, Number Properties

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

Bunuel

13 Apr 2020, 02:16

35

10

5,284

by: bumpbot

07 Nov 2023, 06:36

ER

If x and y are integers, is x + y even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

emanresu1

28 Jul 2018, 21:33

35

8

19,550

by: bumpbot

23 Dec 2023, 20:47

ER

Is 8^x > 4^y? (1) x > y (2) 3x > 2y

655-705 (Hard) | Exponents, Inequalities

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

MathRevolution

15 Mar 2016, 18:48

35

6

7,153

by: bumpbot

03 Jan 2024, 21:04

ER

Given that x is a real number, is −1 < x < 3? (1) | |x − 1| − 1 | < 1

655-705 (Hard) | Absolute Values, Inequalities

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

gsingh0711

30 Jul 2018, 20:44

35

7

6,284

by: bumpbot

10 Jan 2024, 04:01

ER

If n is an integer and k = 9.87 X 10^n, what is the value of

555-605 (Medium) | Exponents, Inequalities

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

fozzzy

12 Feb 2024, 14:01

35

12

6,333

by: Bunuel

13 Feb 2024, 01:02

ER

If x and y are positive integers greater than 3, what is the remainder

705-805 (Hard) | Number Properties, Remainders

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

Bunuel

06 Dec 2017, 09:05

35

14

6,419

by: bumpbot

01 Apr 2024, 17:36

ER

For positive integers 10 < K < Z < Q, what is the value of the remaind

555-605 (Medium) | Multiples and Factors, Remainders

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

aragonn

02 Dec 2018, 01:55

35

9

8,074

by: bumpbot

14 Apr 2024, 23:18

ER

Given x = y + z. Is x > y ? (1) y > 0 (2) z > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

GMATBusters

15 Jun 2018, 10:21

35

6

14,005

by: bumpbot

10 May 2024, 17:56

ER

In the figure above, segments PQ and PR are each parallel to one of th

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

anairamitch1804

26 Jan 2017, 08:26

35

7

17,120

by: bumpbot

24 Aug 2024, 23:23

ER

If P, Q, and R are positive integers, what is the remainder

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

Pansi

29 Oct 2012, 05:35

35

5

8,009

by: GMATBusters

30 Aug 2024, 07:43

ER

If n is a positive integer, how many different factors n has?

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

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

haardiksharma

03 Jul 2017, 09:10

35

10

7,275

by: bumpbot

17 Oct 2024, 10:52

ER

If x^2y^3 = 200, what is the value of xy ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

TheSituation

09 Apr 2010, 20:14

35

6

18,020

by: bumpbot

05 Nov 2024, 01:31

ER

If a certain positive two-digit number has tens' digit w and units' di

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

23 May 2020, 08:41

35

5

9,253

by: Bunuel

24 Nov 2024, 14:39

ER

Akhil must complete a project that is divided into seven subtasks by m

805+ (Hard) | Fractions and Ratios

805+ (Hard) | Fractions and Ratios hide tags

mbaORnoMBA

18 Aug 2019, 13:46

35

5

7,410

by: bumpbot

04 Dec 2024, 06:53

ER

It takes 10 type A machines 3 days to complete a task when they are op

505-555 (Easy) | Work and Rate Problems

505-555 (Easy) | Work and Rate Problems hide tags

Bunuel

07 Feb 2020, 06:20

35

10

11,850

by: Tishaagarwal13

09 Jan 2025, 18:51

ER

If x is positive, is x > 4?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

steilbergauf

17 May 2014, 04:53

35

5

5,548

by: bumpbot

06 Feb 2025, 01:05

ER

If r is represented by the decimal 0.t5, what is the digit ?

505-555 (Easy) | Fractions and Ratios

505-555 (Easy) | Fractions and Ratios hide tags

Bunuel

22 Dec 2014, 08:45

35

11

16,144

by: bumpbot

01 Mar 2025, 07:24

ER

What is the value of the integer k?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

msand

27 Dec 2009, 15:02

35

10

19,399

by: bumpbot

03 Mar 2025, 08:52

ER

If x ≠ 0, does x have an odd number of factors?

555-605 (Medium) | Multiples and Factors, Number Properties

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

Bunuel

31 Jul 2018, 22:00

35

12

6,791

by: bumpbot

12 Mar 2025, 13:50

ER

Is |a| > |b| ? (1) a − b > a^2 − b^2 (2) a > b

705-805 (Hard) | Absolute Values, Inequalities

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

Bunuel

23 Aug 2018, 00:21

35

14

8,263

by: bumpbot

15 Mar 2025, 09:51

ER

An arithmetic progression is a sequence in which the difference of any

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

RITU700

30 Jun 2017, 03:32

35

5

5,391

by: bumpbot

19 Mar 2025, 22:22

ER

Are x and y integers? (1) The product xy is an integer. (2) x + y

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

03 Jan 2016, 13:52

35

12

7,448

by: bumpbot

02 Apr 2025, 14:55

ER

If n is a four-digit positive integer, then what is the tens

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

fozzzy

15 Jun 2013, 08:02

35

10

5,925

by: bumpbot

06 Apr 2025, 19:57

ER

If p and q are positive integers and pq = 24, what is the

Sub 505 (Easy) | Algebra, Number Properties

Sub 505 (Easy) | Algebra, Number Properties hide tags

Bunuel

17 Jan 2014, 02:35

35

8

44,722

by: bumpbot

22 Apr 2025, 04:20

ER

Are the integers q, r and s consecutive?

555-605 (Medium) | Statistics and Sets Problems

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

bewakoof

08 Jul 2013, 07:21

35

9

12,293

by: bumpbot

20 May 2025, 10:03