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

175

15

78,458

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

854

24

188,387

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

487,710

by: bb

29 Aug 2025, 13:27

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Data Sufficiency Butler: 2 Questions Every Day

1, 2

Bunuel

20 Apr 2026, 21:43

467

20

160,645

by: Bunuel

20 Apr 2026, 21:44

ER

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

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

20 Apr 2026, 19:00

3

62

by: Edskore

21 Apr 2026, 05:27

ER

Was the average (arithmetic mean) score that Steve got per subject gre

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

01 Nov 2018, 00:12

4

2

1,889

by: bumpbot

21 Apr 2026, 05:06

ER

Before the start of the fall service cycle, the city transit authority

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

14 Apr 2026, 19:00

4

151

by: Bunuel

21 Apr 2026, 04:00

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During two 7-day promotional weeks, Week 1 and Week 2, a bike-share

555-605 (Medium) | Percent and Interest Problems, Word Problems

555-605 (Medium) | Percent and Interest Problems, Word Problems hide tags

Bunuel

14 Apr 2026, 19:00

4

153

by: Bunuel

21 Apr 2026, 03:30

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Last month a phone company charged $ 0.07 per minute for the first 300

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Skywalker18

20 Jun 2016, 11:04

187

18

40,513

by: bumpbot

21 Apr 2026, 03:10

ER

During a two-session fundraising campaign, Maya and Noah each

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

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

Bunuel

13 Apr 2026, 19:00

8

262

by: Bunuel

21 Apr 2026, 02:30

ER

For a trade-show booth, a crew assembled 10 display panels. Some were

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

13 Apr 2026, 19:00

5

4

186

by: Bunuel

21 Apr 2026, 01:45

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A set of data consists of 4 integers. What is the standard

705-805 (Hard) | Statistics and Sets Problems

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

nusmavrik

24 Aug 2010, 01:28

29

7

8,708

by: bumpbot

21 Apr 2026, 01:19

ER

Cedar Court and Maple Court have the same number of occupied apartment

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

12 Apr 2026, 19:00

5

6

200

by: DropletMaverick

21 Apr 2026, 01:12

ER

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

555-605 (Medium) | Combinations

555-605 (Medium) | Combinations hide tags

Bunuel

20 Apr 2026, 19:00

3

43

by: BongBideshini

21 Apr 2026, 00:45

ER

How many different 5-person teams can be formed from a group

Sub 505 (Easy) | Combinations

Sub 505 (Easy) | Combinations hide tags

gmatJP

22 Jun 2010, 19:14

203

13

49,537

by: bumpbot

20 Apr 2026, 22:40

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Bill is 88 years old. How old is Colie?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

28 Oct 2024, 01:30

2

1,074

by: bumpbot

20 Apr 2026, 21:59

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If S is a set of odd integers and 3 and –1 are in S, is –15 in S ?

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

Bunuel

26 Apr 2019, 01:57

114

18

24,123

by: bumpbot

20 Apr 2026, 10:50

ER

If Johnny bought candy using nickels ($0.05 coins)

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

01 Oct 2023, 04:47

10

2

10,450

by: thisisakr

20 Apr 2026, 09:50

ER

12 Days of Christmas GMAT Competition - Day 10: Three ethanol-water

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

Bunuel

27 Dec 2024, 09:00

26

14

4,229

by: bumpbot

20 Apr 2026, 05:30

ER

12 Days of Christmas GMAT Competition - Day 3: A manufacturer creates

655-705 (Hard) | Mixture Problems, Word Problems

655-705 (Hard) | Mixture Problems, Word Problems hide tags

Bunuel

18 Dec 2024, 09:00

17

9

4,780

by: bumpbot

20 Apr 2026, 05:28

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

13

3

2,063

by: bumpbot

20 Apr 2026, 05:19

ER

If 50 mL of an x% alcohol solution is mixed with 30 mL of a y% alcohol

655-705 (Hard) | Algebra, Mixture Problems

655-705 (Hard) | Algebra, Mixture Problems hide tags

Bunuel

26 Nov 2019, 02:03

13

4

4,319

by: bumpbot

20 Apr 2026, 05:15

ER

Packet A contains a mixture of salt and sugar and Packet B contains

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

Bunuel

26 Nov 2022, 09:15

6

2

3,284

by: bumpbot

20 Apr 2026, 05:11

ER

If there are only girl students in a class, is the number of students

805+ (Hard) | Statistics and Sets Problems, Word Problems

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

chetan2u

16 Oct 2017, 04:17

10

6

2,934

by: bumpbot

20 Apr 2026, 03:01

ER

By what percent has the price of an overcoat been reduced?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

09 Dec 2014, 07:09

19

6

18,606

by: thisisakr

20 Apr 2026, 02:55

ER

Elena, Marco, and Sofia each had one folder to copy to an external

655-705 (Hard) | Non-Math Related, Word Problems

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

Bunuel

12 Apr 2026, 19:00

5

10

280

by: Bunuel

20 Apr 2026, 02:15

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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

3

2

76

by: Adit_

19 Apr 2026, 23:27

ER

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

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

19 Apr 2026, 19:00

3

2

81

by: Adit_

19 Apr 2026, 23:22

ER

Felixity, a musician, never sings sad rock songs. Of the songs on Feli

705-805 (Hard) | Overlapping Sets

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Bunuel

16 Jun 2021, 05:00

4

6

2,367

by: Bunuel

19 Apr 2026, 22:09

ER

Was the amount of John's heating bill for February greater than it was

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

24 Jun 2018, 20:35

27

8

19,549

by: NamDuong

19 Apr 2026, 21:42

What is the value of a + b + 1?

805+ (Hard) | Algebra, Math Related

805+ (Hard) | Algebra, Math Related hide tags

NathanMasky

24 Feb 2025, 14:57

8

2

973

by: bumpbot

19 Apr 2026, 19:38

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

36

5

8,853

by: bumpbot

19 Apr 2026, 08:18

ER

Each entry in the multiplication table above is an integer that is eit

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

gmatt1476

21 Sep 2019, 19:09

201

9

20,529

by: Bunuel

19 Apr 2026, 06:47

ER

When a certain drug was administered to a group of patients, some pati

805+ (Hard) | Overlapping Sets

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edwin.que

01 Nov 2023, 22:31

136

8

18,269

by: bumpbot

19 Apr 2026, 04:32

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R = {223, 225, 227, 229, 231, 233, 235, 237} Given Set R, Set S is fo

705-805 (Hard) | Statistics and Sets Problems

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

Sajjad1994

14 Aug 2019, 03:28

6

2

1,677

by: bumpbot

19 Apr 2026, 03:42

ER

Two (or more) lines of a poem are said to rhyme when the final word of

655-705 (Hard) | Non-Math Related

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

dredwulf

04 Dec 2025, 00:09

24

16

3,436

by: Adit_

19 Apr 2026, 01:34

ER

For a certain exam, was the standard deviation of the scores

555-605 (Medium) | Statistics and Sets Problems

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

gmat1220

09 May 2011, 00:12

85

11

11,594

by: bumpbot

18 Apr 2026, 23:38

ER

Train A leaves New York and is heading towards Boston at a constant

805+ (Hard) | Distance and Speed Problems

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Bunuel

14 Apr 2025, 00:30

13

4

1,340

by: bumpbot

18 Apr 2026, 20:56

ER

At a certain banquet, meals were served in only 2 locations. In the

705-805 (Hard) | Overlapping Sets

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guddo

24 Jan 2024, 03:53

65

9

10,112

by: bumpbot

18 Apr 2026, 13:44

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

447

by: iamjatinagrawal

18 Apr 2026, 11:59

ER

The sequence of s1, s2, s3, . . . , sn of n is such that sk = 2k -1 if

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

RITU700

05 Mar 2016, 13:29

21

6

7,485

by: bumpbot

18 Apr 2026, 11:58

ER

Ann and Pierre purchased $37 worth of French fries.

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Gnpth

15 Jul 2014, 23:45

14

6

5,282

by: bumpbot

18 Apr 2026, 11:54

ER

A group of 580 people participated in a survey. Each of these people

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

01 Jul 2020, 02:55

12

8

5,493

by: bumpbot

18 Apr 2026, 11:27

ER

If S is a sequence of numbers of the form X, XX, XXX, XXXX, XXXXX, …,

605-655 (Medium) | Multiples and Factors +2 tags

605-655 (Medium) | Multiples and Factors, Number Properties, Sequences hide tags

Bunuel

27 Jan 2016, 03:14

25

10

9,377

by: bumpbot

18 Apr 2026, 08:29

ER

An airport screens bags for forbidden items and an alarm is supposed

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Bunuel

27 May 2024, 01:30

17

2

2,750

by: bumpbot

18 Apr 2026, 06:49

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

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

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

Gmat750aspirant

28 Feb 2025, 09:36

14

5

2,438

by: Jash1666

17 Apr 2026, 23:47

ER

Rachel is throwing a die with sides numbered consecutively

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Macedon

10 Nov 2013, 04:15

84

14

13,080

by: bumpbot

17 Apr 2026, 12:46

ER

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

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

16 Apr 2026, 19:00

2

135

by: BongBideshini

17 Apr 2026, 11:36

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

9

2

174

by: BongBideshini

17 Apr 2026, 11:28

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

2

263

by: shashag

17 Apr 2026, 08:39

ER

The proceeding list of terms is an arithmetic sequence. How many terms

555-605 (Medium) | Arithmetic, Sequences

555-605 (Medium) | Arithmetic, Sequences hide tags

samuelz

01 Apr 2017, 07:12

7

8

3,000

by: bumpbot

17 Apr 2026, 05:17

ER

A department manager distributed a number of books, calendars, and dia

705-805 (Hard) | Fractions and Ratios, Word Problems

705-805 (Hard) | Fractions and Ratios, Word Problems hide tags

Bunuel

24 Feb 2016, 04:28

40

10

8,026

by: bumpbot

17 Apr 2026, 04:52

ER

For a certain set of z numbers, where z > 1, is the average (arithmeti

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

08 Jan 2018, 07:39

2

1,504

by: bumpbot

17 Apr 2026, 03:47