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

79,242

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

188,843

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

488,468

by: bb

29 Aug 2025, 13:27

ER

What is the distance between City A and City B?

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

20 Sep 2024, 01:30

7

5

2,791

by: bumpbot

29 Mar 2026, 23:18

ER

What is the probability of (x+3)(x+10) being div by 6?

805+ (Hard) | Multiples and Factors, Probability

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

chetan2u

24 Apr 2016, 21:28

22

5

4,404

by: bumpbot

30 Mar 2026, 00:05

ER

At a company wellness fair, 41 employees signed up for at least one of

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

25 Mar 2026, 19:00

7

5

434

by: Bunuel

31 Mar 2026, 02:15

ER

A total of 774 doctorates in mathematics were granted to United States

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

15 Dec 2014, 09:07

29

5

8,629

by: bumpbot

31 Mar 2026, 12:30

ER

Marta received a one time cash bonus from her employer. She paid part

555-605 (Medium) | Fractions and Ratios, Word Problems

555-605 (Medium) | Fractions and Ratios, Word Problems hide tags

Bunuel

17 Mar 2026, 19:00

4

5

663

by: FluidChess

02 Apr 2026, 08:27

ER

Working independently at their respective constant rates, pumps X and

505-555 (Easy) | Work and Rate Problems

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

luminousmocha

21 Jan 2010, 17:24

41

5

12,794

by: bumpbot

05 Apr 2026, 15:35

ER

A museum curator will select 4 paintings from a collection to feature

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Bunuel

01 Apr 2026, 19:00

9

5

504

by: Bunuel

06 Apr 2026, 10:31

ER

In quadrilateral ABCD, is angle BCD a right angle?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

gmatt1476

21 Sep 2019, 17:57

96

5

15,378

by: Bunuel

06 Apr 2026, 10:42

ER

A manufacturer produces items at a fixed monthly cost of $2000 plus a

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

03 Jun 2020, 04:31

8

5

2,782

by: bumpbot

07 Apr 2026, 13:05

ER

If each bottle of wine in Taynas suitcase weighs 1.75 pounds

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

kevincan

13 Feb 2026, 14:32

4

5

695

by: Gmat860sanskar

08 Apr 2026, 21:43

ER

In a group, everybody speaks English or French. What percentage of

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

ExpertsGlobal5

30 Dec 2025, 22:00

10

5

694

by: Advait01

09 Apr 2026, 10:45

ER -1

The rate at which a certain investment appreciates is R.

705-805 (Hard) | Percent and Interest Problems

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

ExpertsGlobal5

19 Feb 2026, 20:00

9

5

739

by: ShivenDhir1

09 Apr 2026, 19:19

ER

At the Northgate distribution center, a sorting line can run in one of

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

05 Apr 2026, 19:00

6

5

307

by: Bunuel

13 Apr 2026, 02:30

ER

What is the mean (average) of the numbers in the series if each number

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Bunuel

12 Jul 2019, 01:30

6

5

2,413

by: nbharti

13 Apr 2026, 11:27

ER

For integers a, b, and c, a/(b-c) = 1. What is the value of (b-c)/b?

505-555 (Easy) | Algebra +2 tags

505-555 (Easy) | Algebra, Multiples and Factors, Number Properties hide tags

Bunuel

06 Oct 2017, 05:30

33

5

16,306

by: esseeligendi

13 Apr 2026, 19:37

ER

A person is to be selected at random from the group T of people. What

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

Bunuel

30 Sep 2024, 01:30

17

5

2,265

by: bumpbot

14 Apr 2026, 00:55

ER

Laser diodes and micro-controllers are among the components used to ma

805+ (Hard) | Percent and Interest Problems

805+ (Hard) | Percent and Interest Problems hide tags

Vishh13

05 Oct 2020, 11:25

14

5

2,247

by: bumpbot

14 Apr 2026, 03:05

ER

At a history museum, the price of each regular admission ticket sold

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

GMAT695

01 Oct 2024, 02:20

37

5

7,739

by: GMAT1034

15 Apr 2026, 12:10

A company produces three types of electronic components: X, Y, and Z.

605-655 (Medium) | Math Related, Word Problems

605-655 (Medium) | Math Related, Word Problems hide tags

Gmat750aspirant

28 Feb 2025, 09:36

15

5

2,589

by: Jash1666

17 Apr 2026, 23:47

ER

The average duration of Rasmuss commute across Monday, Tuesday, and

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

ExpertsGlobal5

12 Jan 2026, 22:00

1

5

507

by: iamjatinagrawal

18 Apr 2026, 11:59

ER

Does Country X have more citizens than Country Y?

555-605 (Medium) | Overlapping Sets, Word Problems

555-605 (Medium) | Overlapping Sets, Word Problems hide tags

Bunuel

23 Jan 2015, 07:45

37

5

8,943

by: bumpbot

19 Apr 2026, 08:18

ER

Julie is selling lemonades in two sizes, small and large. Small lemona

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

23 Sep 2015, 22:51

27

5

5,171

by: bumpbot

21 Apr 2026, 18:28

ER

At the Butterfly Scout Cookie Chow Down, each girl was given

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

fozzzy

08 Oct 2013, 05:50

8

5

5,665

by: bumpbot

23 Apr 2026, 21:25

ER

A collector plans to take 4 of his cars to an auto show. How many cars

655-705 (Hard) | Combinations

655-705 (Hard) | Combinations hide tags

Bunuel

24 May 2024, 01:30

13

5

2,684

by: bumpbot

24 Apr 2026, 01:32

ER

Adam can type at a constant rate of 50 words per minute and Bernie can

805+ (Hard) | Work and Rate Problems

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

GMATinsight

20 Mar 2021, 01:50

15

5

2,043

by: bumpbot

25 Apr 2026, 23:00

ER

An artist's portfolio consisting of 1,000 photos is divided into 20 su

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

13 Feb 2015, 08:46

13

5

5,602

by: bumpbot

27 Apr 2026, 06:58

ER

A courier company assigned each of its drivers to exactly one of three

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

21 Apr 2026, 19:00

2

5

286

by: Bunuel

29 Apr 2026, 01:15

ER

Maya and Leo are digitizing a set of archival files. Working together

655-705 (Hard) | Work and Rate Problems

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

Bunuel

21 Apr 2026, 19:00

6

5

330

by: Bunuel

29 Apr 2026, 02:30

ER

A shopkeeper decreased the price of an item by p percent and then

705-805 (Hard) | Percent and Interest Problems

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

Bunuel

21 Aug 2024, 01:30

10

5

1,500

by: bumpbot

29 Apr 2026, 22:47

ER

At a community center, a total of 31 people enrolled in at least one

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

27 Apr 2026, 19:00

5

246

by: Bunuel

01 May 2026, 02:15

ER

40% of the dogs at a certain animal shelter have been microchipped. Ho

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

18 Jul 2019, 08:00

8

5

4,595

by: bumpbot

01 May 2026, 03:46

ER

A freight train traveled from North Terminal to East Terminal

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

28 Apr 2026, 19:00

4

5

223

by: Bunuel

01 May 2026, 04:30

ER

Each dinner at Restaurant X includes a pair of side dishes, which

555-605 (Medium) | Combinations

555-605 (Medium) | Combinations hide tags

Bunuel

10 Aug 2023, 05:00

96

5

22,268

by: Bunuel

01 May 2026, 23:50

ER

A function f(x) is defined as f(x) = x + x2 for an integer x. If a is

805+ (Hard) | Functions and Custom Characters, Number Properties

805+ (Hard) | Functions and Custom Characters, Number Properties hide tags

Bunuel

03 Jun 2020, 23:02

15

5

3,244

by: bumpbot

02 May 2026, 02:16

ER

A high school volleyball team completed its regular season last spring

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

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

Bunuel

30 Apr 2026, 19:00

4

5

250

by: Bunuel

02 May 2026, 03:30

ER

In four production runs (Runs 1 to 4), a quality inspector found

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

26 Apr 2026, 14:00

6

5

567

by: Bunuel

05 May 2026, 11:02

ER

10 + 11 + 12 +...+ x = 5106 What is x?

605-655 (Medium) | Arithmetic, Sequences

605-655 (Medium) | Arithmetic, Sequences hide tags

huongguyen

15 Oct 2021, 20:19

22

5

3,733

by: bumpbot

06 May 2026, 07:47

ER

At a delivery depot, some parcels currently loaded onto Van Cedar are

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

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

Bunuel

03 May 2026, 19:00

4

5

215

by: Bunuel

07 May 2026, 02:30

ER

At a certain car dealership, what percent of the cars both weigh more

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

04 May 2026, 19:00

1

5

196

by: Bunuel

08 May 2026, 02:00

ER

In a basketball game, both Heather and Irene scored 30 baske

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

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

kevincan

10 Apr 2026, 13:23

4

5

497

by: Mathewseldo

08 May 2026, 03:12

ER

Cathy was born less than 10 years ago and Karen is at least 22 years

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

13 Jul 2020, 03:47

9

5

2,705

by: bumpbot

09 May 2026, 05:18

ER

Two men, A and B, are assigned to complete a piece of work. A and B st

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

Bunuel

05 Jul 2017, 00:44

12

5

3,673

by: bumpbot

09 May 2026, 07:31

ER

A warehouse manager recorded the weights of all the crates in one

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

10 May 2026, 19:00

3

5

152

by: Adit_

11 May 2026, 07:32

ER

During a penalty-scored trivia challenge, Sophia worked through a set

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

10 May 2026, 19:00

3

5

183

by: pappal

12 May 2026, 13:04

A fishpole is to be encased in a rectangular box with a square base.

Poor Quality

Poor Quality hide tags

mosquitojoyride

21 Sep 2009, 16:43

6

4,265

by: jeeteshsingh

05 Jan 2010, 13:46

ER

Is n an integer? (1) n^3 + 3n is an integer. (2) n^4 + 4n is

Poor Quality

Poor Quality hide tags

h2polo

20 Apr 2010, 13:28

5

6

5,554

by: h2polo

20 Apr 2010, 18:25

ER

If n and k are integers greater than 0. What is the remainder when (n

655-705 (Hard) | Number Properties, Out of Scope - Too Hard

655-705 (Hard) | Number Properties, Out of Scope - Too Hard hide tags

shrouded1

17 Sep 2010, 07:38

10

6

7,708

by: shrouded1

17 Sep 2010, 07:43

ER

Is the square root of "a" an integer? (1) the last

Poor Quality

Poor Quality hide tags

nusmavrik

02 Aug 2010, 04:26

2

6

5,741

by: Bunuel

19 Oct 2010, 09:51

ER

Is (x^2 + y^2) a perfect square? (1) x is even, y is odd (2)

Poor Quality

Poor Quality hide tags

hallelujah1234

16 Apr 2004, 16:56

1

6

5,338

by: Bunuel

04 Jan 2011, 06:37

ER

The area of the right triangle ABC is 4 times greater than

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

TXTDryFly

12 Jul 2013, 02:23

69

6

21,484

by: subhashghosh

04 May 2011, 03:50