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

ER

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

194,325

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

496,434

by: bb

23 Aug 2026, 13:01

ER

In College X the number of students enrolled in both a

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

23 Jul 2012, 04:50

32

16

36,929

by: totaltestprepNick

03 Mar 2026, 12:46

ER

How many of the 60 cars sold last month by a certain dealer

Sub 505 (Easy) | Overlapping Sets

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Walkabout

14 Dec 2012, 07:34

48

18

24,333

by: totaltestprepNick

03 Mar 2026, 12:45

ER

Every member of a certain club volunteers to contribute equa

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Walkabout

26 Dec 2012, 04:44

96

10

23,492

by: totaltestprepNick

03 Mar 2026, 10:08

ER

An employee is paid 1.5 times the regular hourly rate for

555-605 (Medium) | Word Problems

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Walkabout

14 Dec 2012, 05:09

64

6

30,733

by: totaltestprepNick

03 Mar 2026, 10:06

ER

Carmen currently works 30 hours per week at her part-time

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

26 Aug 2012, 03:15

82

8

30,726

by: totaltestprepNick

03 Mar 2026, 10:05

ER

A store purchased 20 coats that each cost an equal amount and then sol

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

tradinggenius

26 Jan 2011, 08:30

79

5

23,402

by: totaltestprepNick

03 Mar 2026, 10:02

ER

If the length of Wanda's telephone call was rounded up to the nearest

555-605 (Medium) | Arithmetic, Word Problems

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

Bunuel

14 Jun 2012, 03:09

131

10

47,044

by: totaltestprepNick

03 Mar 2026, 09:56

ER

If the total price of n equally priced shares of a certain stock was

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

21 Jan 2014, 04:15

102

13

30,589

by: totaltestprepNick

03 Mar 2026, 09:53

ER

What was the total amount of revenue that a theater received

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Walkabout

14 Dec 2012, 09:16

23

7

19,500

by: totaltestprepNick

03 Mar 2026, 09:45

ER

A certain theater has a total of 884 seats, of which 500 are

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

fozzzy

27 Feb 2013, 04:48

46

10

24,489

by: totaltestprepNick

03 Mar 2026, 09:45

ER

A citrus fruit grower receives $15 for each crate of oranges

Sub 505 (Easy) | Word Problems

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Bunuel

30 Jul 2012, 02:20

61

13

33,236

by: totaltestprepNick

03 Mar 2026, 09:43

ER

Machines X and V produced identical bottles at different

605-655 (Medium) | Work and Rate Problems

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cgl7780

03 Nov 2010, 17:36

1.0k

16

76,372

by: totaltestprepNick

03 Mar 2026, 09:39

ER

Three machines, K, M, and P, working simultaneously and

505-555 (Easy) | Work and Rate Problems

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

Walkabout

03 Dec 2012, 03:40

67

10

24,337

by: totaltestprepNick

03 Mar 2026, 09:37

ER

Water is pumped into a partially filled tank at a constant

Sub 505 (Easy) | Work and Rate Problems

Sub 505 (Easy) | Work and Rate Problems hide tags

Bunuel

06 Aug 2012, 03:09

62

7

40,005

by: totaltestprepNick

03 Mar 2026, 09:26

ER

Hoses X and Y simultaneously fill an empty swimming pool

Sub 505 (Easy) | Work and Rate Problems

Sub 505 (Easy) | Work and Rate Problems hide tags

Bunuel

21 Jan 2014, 04:07

27

10

28,072

by: totaltestprepNick

03 Mar 2026, 09:24

ER

What is the probability that events A and B both occur?

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

21 Oct 2022, 07:46

21

7

8,283

by: SuprotimRoy

03 Mar 2026, 08:35

ER

If A, B and C are digits between 0 and 9 inclusive, what is

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

SonyGmat

16 Jan 2012, 14:38

40

8

10,923

by: MS26

03 Mar 2026, 06:09

A pagoda “P” is situated on an apex of a hill at a height of

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Asifpirlo

02 Aug 2013, 11:48

7

10

3,709

by: bumpbot

03 Mar 2026, 05:05

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

7,436

by: bumpbot

03 Mar 2026, 04:50

ER

At 12:00 noon yesterday, Car B passed by a monument at a constant

655-705 (Hard) | Distance and Speed Problems

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

kevincan

03 Mar 2026, 02:25

4

1

505

by: Dereno

03 Mar 2026, 03:04

ER

If r, s, and t are different odd numbers greater than 1, what is the m

705-805 (Hard) | Statistics and Sets Problems

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

BillyZ

31 Mar 2017, 07:20

8

3

2,228

by: bumpbot

03 Mar 2026, 02:31

ER

A motorized boat traveled 30 miles directly against a current of

655-705 (Hard) | Distance and Speed Problems

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

RonPurewal

12 Mar 2026, 05:28

7

6

932

by: RonPurewal

02 Mar 2026, 12:46

ER

A tank containing water started to leak. Did the tank contain more

605-655 (Medium) | Work and Rate Problems

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

MHIKER

14 Aug 2024, 02:56

260

19

58,990

by: totaltestprepNick

02 Mar 2026, 10:08

ER

On Monday morning a certain machine ran continuously at a uniform rate

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

23 Jan 2014, 03:33

68

8

24,070

by: totaltestprepNick

02 Mar 2026, 10:05

ER

How much time did it take a certain car to travel 400

555-605 (Medium) | Distance and Speed Problems

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

1, 2

DSGB

06 Sep 2010, 12:09

211

24

50,100

by: totaltestprepNick

02 Mar 2026, 08:24

ER

At what speed was a train traveling on a trip when it had

505-555 (Easy) | Distance and Speed Problems

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

Walkabout

21 Jul 2013, 11:32

216

15

55,430

by: totaltestprepNick

02 Mar 2026, 08:23

ER

On a recent trip, Mary drove 50 miles. What was the average

Sub 505 (Easy) | Distance and Speed Problems

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

Bunuel

20 Aug 2012, 03:18

51

13

38,133

by: totaltestprepNick

02 Mar 2026, 08:21

ER

If Paula drove the distance from her home to her college at

505-555 (Easy) | Distance and Speed Problems

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

Bunuel

02 Jul 2012, 02:42

90

14

28,836

by: totaltestprepNick

02 Mar 2026, 08:21

ER

Exactly three years ago, Alice invested a total amount of money

805+ (Hard) | Percent and Interest Problems

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

kevincan

01 Mar 2026, 06:26

1

2

544

by: kevincan

02 Mar 2026, 08:13

ER

At a certain picnic, each of the guests was served either a

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

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

Bunuel

15 Oct 2012, 04:41

128

18

29,834

by: totaltestprepNick

02 Mar 2026, 08:13

ER

A bookstore that sells used books sells each of its paperbac

555-605 (Medium) | Algebra, Word Problems

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

Bunuel

23 Feb 2014, 07:48

71

10

37,780

by: totaltestprepNick

02 Mar 2026, 08:11

ER

A certain dealership has a number of cars to be sold by its

505-555 (Easy) | Remainders, Word Problems

505-555 (Easy) | Remainders, Word Problems hide tags

Bunuel

27 Dec 2013, 05:37

74

10

25,073

by: totaltestprepNick

02 Mar 2026, 08:10

ER

The weights of all dishes of type X are exactly the same, and the weig

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

03 Sep 2012, 06:08

51

9

26,882

by: totaltestprepNick

02 Mar 2026, 08:10

ER

The only contents of a parcel are 25 photographs and 30 negatives. Wha

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

10 Feb 2014, 00:32

11

7

14,735

by: totaltestprepNick

02 Mar 2026, 08:02

ER

If the two floors in a certain building are 9 feet apart, how many ste

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

23 Jul 2012, 04:48

24

7

27,639

by: totaltestprepNick

02 Mar 2026, 08:02

ER

In 1995 Division A of company had 4850 customers. If there

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

jananijayakumar

07 Sep 2025, 09:41

83

14

19,066

by: totaltestprepNick

02 Mar 2026, 07:51

ER

For which type of investment, J or K, is the annual rate of return gre

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

30 Jul 2012, 02:18

25

10

29,811

by: totaltestprepNick

02 Mar 2026, 07:45

ER

The inflation index for the year 1989 relative to the year

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Walkabout

26 Dec 2012, 04:34

52

10

23,988

by: totaltestprepNick

02 Mar 2026, 07:35

ER

Some computers at a certain company are Brand X and the rest are Brand

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

27 Dec 2013, 05:41

16

6

16,115

by: totaltestprepNick

02 Mar 2026, 07:34

ER

Linda, Robert, and Pat packed a certain number of boxes with books. Wh

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

15 Jul 2018, 21:17

31

5

10,642

by: totaltestprepNick

02 Mar 2026, 07:31

ER

What was the ratio of the number of cars to the number of trucks produ

505-555 (Easy) | Fractions and Ratios

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

Bunuel

30 Jan 2014, 23:42

42

12

25,072

by: totaltestprepNick

02 Mar 2026, 07:30

ER

In Mr. Smith's class, what is the ratio of the number of boy

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

Bunuel

20 Aug 2012, 03:20

67

12

37,659

by: totaltestprepNick

02 Mar 2026, 07:29

ER

Racing Car A and Racing Car B were driven a distance of 1 mile in oppo

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

duahsolo

01 Mar 2017, 08:53

15

3

2,925

by: bumpbot

02 Mar 2026, 04:47

ER

The results of a certain experiment included 6 data values

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

udaymathapati

23 Jun 2010, 12:30

25

5

16,050

by: bumpbot

02 Mar 2026, 04:37

ER

Will Laurie get to the apartment building before Ernest if they both

655-705 (Hard) | Distance and Speed Problems

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

Bunuel

09 May 2017, 03:03

36

16

7,348

by: arushi118

02 Mar 2026, 03:43

ER

Three employees rake the beach each day at constant rates.

805+ (Hard) | Work and Rate Problems

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

kevincan

25 Feb 2026, 11:35

4

3

497

by: Dereno

01 Mar 2026, 22:45

ER

Merle's spare change jar has exactly 16 U.S. coins, each of which is a

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

gmatt1476

21 Sep 2019, 16:18

235

12

24,669

by: bumpbot

01 Mar 2026, 21:23

ER

If @ represents one of the operations +, -, and x, is k@(l+m

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

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

Walkabout

14 Dec 2012, 07:13

246

14

45,493

by: totaltestprepNick

01 Mar 2026, 19:23

ER

The sequence a1, a2, a3, ..., an of n integers is such that ak = k if

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

1, 2

Summer3

11 Jun 2019, 04:29

343

21

117,809

by: totaltestprepNick

01 Mar 2026, 19:22

ER

The sequence s1, s2, s3, ..., sn, ... is such that Sn = 1/n - 1/(n+1)

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

17 Aug 2010, 12:46

552

14

76,127

by: totaltestprepNick

01 Mar 2026, 19:21