GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

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Bunuel

25 Oct 2022, 08:11

189

15

89,218

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of June 2026

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1, 2

Bunuel

01 Jan 2026, 05:45

872

24

194,324

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

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bb

23 Aug 2026, 13:03

1.6k

1

496,433

by: bb

23 Aug 2026, 13:01

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

481

by: Bunuel

29 Apr 2026, 01:15

ER

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

555-605 (Medium) | Work and Rate Problems

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

happy1992

03 May 2016, 06:52

20

9

5,796

by: bumpbot

28 Apr 2026, 18:19

ER

In a group of 80 college students, how many own a car?

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

1, 2

Hussain15

03 Oct 2017, 02:31

287

25

34,010

by: bumpbot

28 Apr 2026, 18:01

ER

What is the value of 2^x + 2^(-x) ? (1) x < 0 (2) 4^x + 4^(−x) = 23

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

1, 2

Bunuel

10 Aug 2018, 01:23

371

24

38,492

by: ShreyaMittal1609

28 Apr 2026, 12:41

ER

Of a group of 50 households, how many have at least one cat or at

555-605 (Medium) | Overlapping Sets

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Bunuel

26 Jun 2017, 02:27

322

18

53,435

by: Borrat

28 Apr 2026, 06:02

ER

Is the number of members of Club X greater than the number of members

555-605 (Medium) | Overlapping Sets

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TomB

05 Mar 2012, 18:06

568

15

82,084

by: bumpbot

28 Apr 2026, 04:29

ER

In a class, there are 170 students, each of whom plays at least one of

505-555 (Easy) | Overlapping Sets

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Bunuel

20 Apr 2026, 19:00

2

4

432

by: Bunuel

28 Apr 2026, 02:00

ER

A festival organizer is putting together the final set of food trucks

505-555 (Easy) | Combinations

505-555 (Easy) | Combinations hide tags

Bunuel

20 Apr 2026, 19:00

6

4

416

by: Bunuel

28 Apr 2026, 01:45

ER

If the prices of four of the five books that Ann bought are $4, $6, $1

705-805 (Hard) | Statistics and Sets Problems, Word Problems

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

Bhide

26 Dec 2023, 23:55

170

11

17,473

by: bumpbot

28 Apr 2026, 01:42

ER

For what percent of those tested for a certain infection was the test

555-605 (Medium) | Overlapping Sets

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gmatbull

06 Jan 2013, 02:59

110

9

26,130

by: bumpbot

27 Apr 2026, 19:49

ER

When Oswaldo was promoted, he expected his salary to increas

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

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

kevincan

20 Mar 2026, 04:11

5

2

838

by: adconsectetur

27 Apr 2026, 09:35

ER

A shipping company has two departments, one for standard shipping and

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

20 Nov 2023, 02:30

6

2

2,617

by: bumpbot

27 Apr 2026, 09:20

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

5,799

by: bumpbot

27 Apr 2026, 06:58

What is the average (arithmetic mean) of a sequence of N consecutive

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

22 Sep 2023, 01:30

15

3

3,262

by: Tinytrotter

27 Apr 2026, 06:01

ER

If the terms of a sequence with even integers are a1, a2, a3, . . . ,

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

Bunuel

26 May 2016, 11:09

10

6

4,530

by: bumpbot

27 Apr 2026, 04:40

ER

20 percent of the households in Ruterberg have pets. If 15 percent of

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

13 Dec 2024, 01:30

4

3

2,126

by: bumpbot

26 Apr 2026, 23:48

Professor Blinken scores essays with respect to content, gra

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

kevincan

27 Mar 2026, 22:34

1

509

by: Edskore

26 Apr 2026, 13:54

ER

Of the 40 researchers at a certain company, 60 percent work on project

555-605 (Medium) | Overlapping Sets

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guddo

24 Jan 2024, 02:39

36

9

8,895

by: Harsh_

26 Apr 2026, 11:11

ER

Of the 20 people who each purchased 2 tickets to a concert, some used

605-655 (Medium) | Overlapping Sets

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rahuldev31

13 Feb 2017, 08:36

92

14

16,261

by: bumpbot

26 Apr 2026, 06:19

ER

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

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

guddo

24 Jan 2024, 04:15

39

3

9,315

by: keshubhturakhia

26 Apr 2026, 04:50

ER

At a community arts festival, each of the 72 volunteers was assigned

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

19 Apr 2026, 19:00

5

3

455

by: Bunuel

26 Apr 2026, 02:30

ER

At a shipping center, every package in a certain batch is either

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

19 Apr 2026, 19:00

5

3

431

by: Bunuel

26 Apr 2026, 01:00

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

2,156

by: bumpbot

25 Apr 2026, 23:00

ER

How many parking spaces are occupied in a certain parking lo

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

fozzzy

11 Sep 2013, 06:22

4

2

3,332

by: bumpbot

25 Apr 2026, 11:07

Two cyclists are racing up a mountain at different constant rates. Cyc

655-705 (Hard) | Distance and Speed Problems

655-705 (Hard) | Distance and Speed Problems hide tags

Bunuel

24 Aug 2016, 07:22

20

7

5,197

by: bumpbot

25 Apr 2026, 09:31

A company sells item X and Y at different discount before the Christma

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

23 Jul 2022, 13:30

3

2

1,330

by: bumpbot

25 Apr 2026, 05:35

ER

Fifty percent of all the students attending a school on a certain day

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

11 Nov 2019, 04:23

21

4

7,277

by: bumpbot

25 Apr 2026, 05:28

ER

10 children have ordered a total of 17 hamburgers, and each child has

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

14 Jan 2021, 01:15

8

9

3,021

by: Tanpok

25 Apr 2026, 04:04

ER

To fill an order, a manufacturer had to produce 1000 tools per day for

555-605 (Medium) | Work and Rate Problems

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

sandranjeim

13 Jun 2019, 02:42

122

13

27,045

by: bumpbot

25 Apr 2026, 03:31

A supermarket holds a promotional lottery, whose winners

555-605 (Medium) | Combinations

555-605 (Medium) | Combinations hide tags

bhargavhhhhhhhh

02 Apr 2025, 10:19

3

2

1,596

by: rajdeep212003

25 Apr 2026, 01:20

ER

If a number n is pulled out of a hat at random

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

HKD1710

15 Jan 2017, 08:54

5

2

2,581

by: bumpbot

24 Apr 2026, 12:29

ER

What is the tenth term in a series of 89 consecutive

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

brstorewala

17 May 2003, 03:00

33

16

12,238

by: bumpbot

24 Apr 2026, 03:35

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

15

5

3,092

by: bumpbot

24 Apr 2026, 01:32

ER

In the coordinate plane, a triangle has points (4,6), (8,6), and (x,y)

605-655 (Medium) | Coordinate Plane, Geometry

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

Bunuel

23 May 2018, 22:53

15

4

4,480

by: dhairya18

23 Apr 2026, 23:51

From 1994 to 1995, the revenue of a company increased x percent. From

705-805 (Hard) | Percent and Interest Problems

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

Bunuel

03 Jan 2021, 11:19

14

8

6,011

by: bumpbot

23 Apr 2026, 23:03

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

5,785

by: bumpbot

23 Apr 2026, 21:25

ER

For each positive integer k, let ak = (1 + 1/(k+1)). Is the product a1

655-705 (Hard) | Multiples and Factors +2 tags

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

gmatt1476

21 Sep 2019, 15:20

202

13

28,326

by: bumpbot

23 Apr 2026, 15:12

In a certain Italian recipe book, every recipe that includes oregano

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

Bunuel

27 Jun 2024, 01:30

17

4

1,427

by: bumpbot

23 Apr 2026, 10:08

ER

A small factory that produces only upholstered chairs and sofas uses 1

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

26 Jun 2018, 05:50

29

6

13,141

by: bumpbot

23 Apr 2026, 09:50

A car traveled a distance of d miles in t minutes at an average rate

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

Bunuel

23 May 2020, 09:14

32

7

13,053

by: bumpbot

23 Apr 2026, 09:09

ER

To receive a driver license, sixteen year-olds at Culliver High School

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

iamba

01 Jul 2007, 09:43

88

15

20,504

by: bumpbot

23 Apr 2026, 08:57

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

44

10

7,938

by: bumpbot

23 Apr 2026, 08:45

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

19

13

11,648

by: bumpbot

23 Apr 2026, 07:05

ER -1

Some of the students enrolled at college T are part-time

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

jimmyjamesdonkey

30 Apr 2026, 03:30

39

16

22,521

by: marle

23 Apr 2026, 03:30

ER

On a fishing expedition, a group of 13 fishermen caught a total of 160

655-705 (Hard) | Min-Max Problems, Statistics and Sets Problems

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

shasadou

02 Apr 2016, 03:59

86

16

17,801

by: KarishmaB

23 Apr 2026, 02:46

ER

A reseller bought a vintage floor lamp at a weekend flea market and

705-805 (Hard) | Percent and Interest Problems

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

Bunuel

16 Apr 2026, 19:00

11

3

533

by: Bunuel

23 Apr 2026, 02:45

ER

At a farmers market, Mia, Leo, and Owen each bought some oranges.

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

16 Apr 2026, 19:00

2

3

461

by: Bunuel

23 Apr 2026, 01:45

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

2,033

by: bumpbot

23 Apr 2026, 01:37

A set consists of n distinct integers arranged in the order of increas

705-805 (Hard) | Statistics and Sets Problems

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

Bunuel

29 May 2020, 02:06

19

11

3,889

by: bumpbot

23 Apr 2026, 01:31

ER

Michael arranged all his books in a bookcase with 10 books on each she

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

10 Feb 2014, 00:27

286

15

43,476

by: bumpbot

22 Apr 2026, 13:00