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

79,118

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,758

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

488,338

by: bb

29 Aug 2025, 13:27

ER

If the probability that there is exactly 1 defective pen in a box is 1

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

13 Nov 2019, 01:52

18

2

5,357

by: bumpbot

05 Sep 2025, 09:00

ER

Let x and y be 2 positive integers such that x/y=12.12, what is the va

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

AkhilAggarwal

26 May 2021, 17:31

18

5

3,212

by: bumpbot

10 Sep 2025, 10:52

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

5,821

by: bumpbot

12 Sep 2025, 07:32

ER

If z is the sum of three consecutive odd positive integers, is z evenl

705-805 (Hard) | Multiples and Factors, Remainders

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

Bunuel

23 Mar 2020, 06:57

18

3

3,354

by: bumpbot

22 Sep 2025, 08:39

ER

If |12x − 3| = |3x + 15|, what is the value of x?

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

Bunuel

10 Aug 2018, 03:47

18

7

6,297

by: nandini14

24 Sep 2025, 10:53

ER

After the first term in a finite sequence of numbers, each even-number

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

devashish2407

02 Apr 2024, 03:45

18

6

2,370

by: bumpbot

10 Oct 2025, 04:40

ER

The Smiths take their children to a certain amusement park on exactly

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

GMATF685

16 Nov 2023, 10:30

18

5

6,760

by: Robo_123

22 Oct 2025, 09:42

ER

There are 1,280 books at a library. Everyone borrows these books at le

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

BillyZ

13 Mar 2017, 23:25

18

9

5,617

by: bumpbot

22 Oct 2025, 13:11

ER

150 representatives of an organization participated in a survey. 50%

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

05 Jan 2022, 04:30

18

8

4,656

by: belro

02 Nov 2025, 22:40

If L1, L2 and L3 are lines in a plane, is L1 perpendicular to L3?

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

petrifiedbutstanding

09 Apr 2011, 01:48

18

7

24,343

by: bumpbot

05 Nov 2025, 15:13

ER

If [p] is defined as the smallest integer greater than or equal to -p,

705-805 (Hard) | Functions and Custom Characters, Inequalities

705-805 (Hard) | Functions and Custom Characters, Inequalities hide tags

kiran120680

14 Mar 2019, 05:13

18

2

2,971

by: bumpbot

15 Nov 2025, 09:27

ER

An employee at a company was given the task of making a large number

655-705 (Hard) | Work and Rate Problems

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

Bunuel

27 Jul 2016, 01:40

18

12

8,832

by: bumpbot

16 Nov 2025, 23:07

ER

A set has a series of numbers such as a that

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

alphonsa

02 Aug 2014, 01:42

18

6

4,463

by: bumpbot

25 Nov 2025, 00:09

ER

A thoroughly blended biscuit mix includes only flour and bak

Sub 505 (Easy) | Mixture Problems

Sub 505 (Easy) | Mixture Problems hide tags

Gmatbattle

21 Jul 2014, 08:30

18

4

18,224

by: bumpbot

28 Nov 2025, 10:10

ER

At a restaurant, a group of friends ordered four main dishes and three

705-805 (Hard) | Min-Max Problems

705-805 (Hard) | Min-Max Problems hide tags

sm1510

07 Dec 2021, 05:57

18

3

4,280

by: luisdicampo

02 Dec 2025, 08:29

Rounded to the nearest thousand, the 2022-2023 revenues for Murtaugh

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

MT1302

21 Mar 2024, 08:32

18

3

4,121

by: prashratt

06 Dec 2025, 20:47

ER

How many of the students in a certain class are taking both a history

Sub 505 (Easy) | Number Properties, Word Problems

Sub 505 (Easy) | Number Properties, Word Problems hide tags

shapla

12 Jan 2016, 10:52

18

7

22,512

by: bumpbot

11 Dec 2025, 03:01

ER

Last Friday a certain shop sold 3/4 of the sweaters in its

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

broall

04 Feb 2018, 03:17

18

3

7,959

by: bumpbot

14 Dec 2025, 03:10

ER

If a real estate agent received a commission of 6 percent of the

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

12 Dec 2014, 07:21

18

8

78,473

by: bumpbot

14 Dec 2025, 04:13

ER

Brian is selling souvenirs outside of a Detroit Tigers baseball game.

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

17 Sep 2015, 01:10

18

12

4,817

by: bumpbot

23 Dec 2025, 20:33

ER

Two car, S and T, each traveled a distance of 50 miles. Did car S use

Sub 505 (Easy) | Distance and Speed Problems

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

Bunuel

15 Dec 2014, 09:14

18

4

13,637

by: bumpbot

25 Dec 2025, 06:05

ER

Is X divisible by 3^k?

655-705 (Hard) | Exponents +2 tags

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

PrepTap

07 May 2015, 04:16

18

6

3,180

by: bumpbot

04 Jan 2026, 03:51

ER

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

4,400

by: bumpbot

21 Jan 2026, 02:06

ER

If (3k)^x = 1, what is the value of k ? (1) k> 0 (2) x is a positive

705-805 (Hard) | Exponents, Number Properties

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

Bunuel

19 Sep 2019, 21:25

18

13

3,070

by: bumpbot

26 Jan 2026, 13:41

ER

In Company X, the median annual salary is $50,000. What percent of the

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

MBA20

16 Apr 2019, 11:59

18

2

3,143

by: bumpbot

27 Jan 2026, 02:46

ER

Set A consists of all positive integers less than 100; Set B

555-605 (Medium) | Statistics and Sets Problems

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

mohnish104

29 Nov 2013, 02:54

18

3

17,488

by: bumpbot

27 Jan 2026, 04:16

x boys can complete a work in 15 days and y girls can complete the

805+ (Hard) | Work and Rate Problems

805+ (Hard) | Work and Rate Problems hide tags

Subhajit007

10 May 2019, 02:09

18

4

4,518

by: bumpbot

29 Jan 2026, 02:41

ER

Whenever Tom pays an amount of 2-digit integer in a cafeteria, he calc

705-805 (Hard) | Percent and Interest Problems, Word Problems

705-805 (Hard) | Percent and Interest Problems, Word Problems hide tags

dabaobao

30 Mar 2019, 12:02

18

6

4,370

by: egmat

10 Feb 2026, 03:00

ER

Sally gave some of her candy to her friends. How many pieces

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

fozzzy

20 Nov 2023, 08:25

18

7

17,994

by: Utkarsha20

13 Feb 2026, 03:27

ER

Emma and Deep are painting a wall. Emma started painting the wall

655-705 (Hard) | Work and Rate Problems

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

Bunuel

08 Oct 2024, 01:30

18

4

2,332

by: agrasan

01 Mar 2026, 04:18

ER

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

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

21 Jan 2014, 04:05

18

6

14,718

by: totaltestprepNick

01 Mar 2026, 14:08

ER

If the average (arithmetic mean) of 6 numbers is 75, how

605-655 (Medium) | Statistics and Sets Problems

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

rxs0005

13 Nov 2012, 08:13

18

12

7,285

by: bumpbot

03 Mar 2026, 04:50

ER

Elena receives a salary plus a commission that is equal to a fixed per

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

Bunuel

15 Jan 2014, 02:48

18

5

14,999

by: totaltestprepNick

04 Mar 2026, 10:35

ER

If there are a certain number of students in a classroom, what is the

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

09 Jan 2025, 01:30

18

5

2,305

by: bumpbot

19 Mar 2026, 03:25

ER

The sale price of a certain jacket was 15 percent less than its origin

505-555 (Easy) | Percent and Interest Problems, Word Problems

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

bbhawini

20 Sep 2017, 23:54

18

3

10,446

by: bumpbot

05 Apr 2026, 16:21

ER

If x, y, and z are numbers, is z = 18 ?

Sub 505 (Easy) | Statistics and Sets Problems

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

Bunuel

04 Feb 2014, 01:52

18

6

14,334

by: bumpbot

09 Apr 2026, 13:05

ER

Set S consists of n numbers arranged in ascending order. A

605-655 (Medium) | Statistics and Sets Problems

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

dancinggeometry

05 Sep 2008, 21:59

18

13

11,475

by: bumpbot

23 Apr 2026, 07:05

ER

If Vivica typed a document at an average rate that was greater than

605-655 (Medium) | Work and Rate Problems

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

happy1992

03 May 2016, 06:52

18

9

5,467

by: bumpbot

28 Apr 2026, 18:19

ER

If n is an integer, what is the remainder when n is divided

Poor Quality

Poor Quality hide tags

vcbabu

12 Oct 2013, 09:19

19

5

14,423

by: IanStewart

21 Jun 2009, 10:40

ER

In the xy-plane, if line k has negative slope and passes

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

seekmba

22 May 2010, 14:41

19

9

7,732

by: mvictor

17 Jan 2017, 16:01

ER

Is |ab| > -ab?

705-805 (Hard) | Absolute Values, Inequalities

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

SleeB

27 Oct 2013, 15:46

19

13

3,902

by: askul2389

11 Apr 2017, 08:00

ER

If a and b are positive odd integers less

Poor Quality

Poor Quality hide tags

EgmatQuantExpert

13 Aug 2018, 02:48

19

13

4,404

by: EgmatQuantExpert

22 Mar 2018, 11:44

ER

In the coordinate plane (pictured above), Line J has a slope of m . Do

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

26 May 2018, 07:46

19

4

3,790

by: abhinav2892

26 May 2018, 19:24

ER

Is ab a prime number?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

07 Oct 2015, 06:34

19

5

9,666

by: masoomjnegi

20 Dec 2018, 03:37

ER

What is the length of the chord AB

605-655 (Medium) | Coordinate Plane, Geometry

605-655 (Medium) | Coordinate Plane, Geometry hide tags

kenguva

30 Jan 2012, 03:14

19

6

7,084

by: bumpbot

09 Mar 2019, 05:31

ER

Is x > x ^3 ?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

rxs0005

28 Jan 2011, 05:59

19

15

7,033

by: bumpbot

27 Jan 2020, 17:11

ER

If xy > 0 and both x and y are even numbers, is x > y?

805+ (Hard) | Absolute Values, Inequalities

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

chetan2u

10 Sep 2018, 20:29

19

16

3,183

by: bumpbot

16 Apr 2020, 22:03

ER

if a^2 * a^b = a^z ,

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

GMATBusters

11 Jul 2020, 19:16

19

16

2,518

by: Kinshook

14 Jul 2020, 10:17

ER

If x is an even integer, is x divisible by 6?

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

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

chetan2u

14 Jan 2018, 06:04

19

13

4,069

by: Basshead

05 Nov 2020, 16:27

ER

Is x + y > 1?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

TheUltimateWinner

26 Oct 2017, 03:07

19

11

3,451

by: ism1994

17 Nov 2020, 00:25