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

178

15

79,013

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

188,695

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

488,214

by: bb

29 Aug 2025, 13:27

ER

If a horse runs his first lap in 75 seconds, how long will it take the

505-555 (Easy) | Distance and Speed Problems, Work and Rate Problems

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

Bunuel

19 Mar 2017, 07:00

2

7

3,637

by: bumpbot

17 Aug 2023, 06:17

ER

If a gym charges its members a one-time registration fee of $r and a

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

28 Apr 2021, 08:30

1

1,499

by: MarmikUpadhyay

28 Apr 2021, 20:48

ER

If a group of five Democrats take 3 hours to write a proposal, how

555-605 (Medium) | Work and Rate Problems

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

Bunuel

20 Jan 2026, 15:45

1

280

by: shivani1351

20 Jan 2026, 22:53

ER

If a group of 5 skilled workers take 3 hours to finish a job

505-555 (Easy) | Work and Rate Problems

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

kalita

17 Apr 2012, 01:15

15

4

24,465

by: bumpbot

24 Jun 2025, 22:35

ER

If a group of 5 craftsmen takes 3 hours to finish a job

Sub 505 (Easy) | Work and Rate Problems

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

HKD1710

10 Mar 2017, 23:40

17

7

6,669

by: Bunuel

23 Mar 2025, 02:48

ER -1

If a grocery shopper received $0.25 off the original price of

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

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

Bunuel

11 Dec 2014, 07:25

3

7,746

by: devarpanc

30 Sep 2024, 12:33

ER

If a consultant charges $5,000 for a hours of consultation

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

08 Oct 2025, 00:27

5

3

527

by: Souradeep17

08 Oct 2025, 18:14

ER

If a computer dealer sold a few desktop computers and a few laptop

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

18 Sep 2025, 00:01

5

3

441

by: Souradeep17

18 Sep 2025, 18:22

ER

If a computer dealer bought a particular computer system for $10,000

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

10 Apr 2024, 01:30

2

1

877

by: Nidzo

10 Apr 2024, 02:15

ER

If a composite number is any positive integer greater than one that is

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

05 Sep 2022, 01:30

1

819

by: SaquibHGMATWhiz

05 Sep 2022, 23:48

ER

If a coin was rolled on the ground and made 30 complete rotations with

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

06 Sep 2018, 01:25

1

932

by: Chethan92

06 Sep 2018, 02:49

ER

If a coffee shop sold 600 cups of coffee, some of which were large

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

24 Nov 2025, 23:29

3

488

by: bruhletmein

25 Nov 2025, 10:09

ER

If a club made a gross profit of $0.25 for each candy bar it sold, how

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

23 May 2020, 08:10

135

7

16,957

by: bumpbot

28 Sep 2025, 02:04

ER

If a clerk enters a total of 24 amounts on an MS-Office Excel sheet th

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

17 Oct 2018, 00:12

9

2

2,494

by: bumpbot

29 Mar 2020, 00:32

ER

If a circle is inscribed in an equilateral triangle, what is the area

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

29 Feb 2016, 10:42

47

7

25,026

by: bumpbot

20 Jan 2024, 06:12

ER

If a circle is inscribed in a square as shown above, is the area of th

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

13 Sep 2018, 02:23

1

5

1,486

by: Archit3110

13 Sep 2018, 04:19

ER

If a circle is circumscribed around a quadrilateral, as shown above

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

08 Feb 2023, 02:30

3

1

1,074

by: $!vakumar.m

08 Feb 2023, 04:16

ER

If a child is randomly selected from Columbus elementary sch

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

LinaNY

12 Oct 2013, 12:30

38

9

12,418

by: bumpbot

12 Apr 2026, 04:30

ER

If a certain vase contains only roses and tulips, how many tulips are

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

21 Jun 2018, 09:00

28

10

24,545

by: bumpbot

01 Sep 2025, 04:32

ER

If a certain store purchased a computer game and then sold it for $50

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

fozzzy

20 Nov 2023, 09:55

99

7

23,470

by: bumpbot

28 Dec 2025, 10:14

ER

If a certain store has fewer than 40 pumpkins, how many pumpkins does

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

ExpertsGlobal5

11 Feb 2026, 20:00

4

499

by: ExpertsGlobal5

15 Feb 2026, 09:00

ER

If a certain seamstress in a garment shop made 65 coats, what percent

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

23 Oct 2024, 01:30

1

1,088

by: Tishaagarwal13

03 Jan 2025, 19:21

ER -1

If a certain school will buy computers at a fixed price of x dollars

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

kingbucky

06 Jun 2025, 02:38

4

1,681

by: GMAT1034

27 Oct 2025, 11:13

ER

If a certain positive two-digit number has tens' digit w and units' di

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

23 May 2020, 08:41

35

5

9,271

by: Bunuel

24 Nov 2024, 14:39

ER

If a certain positive integer is divided by 9, the remainder is 3.

505-555 (Easy) | Remainders

505-555 (Easy) | Remainders hide tags

peterpark

30 Apr 2017, 12:49

8

2

5,871

by: bumpbot

09 Jan 2024, 04:23

ER

If a certain positive integer is divided by 9, the remainder

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

fozzzy

19 Jan 2013, 05:21

83

16

23,802

by: bumpbot

24 Apr 2025, 21:41

ER

If a certain parking lot contains 40 motor vehicles, how many of the

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

19 Nov 2021, 02:30

3

5

2,133

by: IanStewart

19 Nov 2021, 13:40

ER

If a certain mixture consists of sugar and cinnamon, how many ounces o

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

mfl6189

16 Nov 2018, 17:41

21

7

15,871

by: bumpbot

17 Nov 2025, 04:29

ER

If a certain machine produces bolts at a constant rate, how many

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

08 Feb 2018, 23:32

7

6

9,396

by: bumpbot

18 Oct 2024, 17:10

ER

If a certain grove consists of 36 pecan trees, what was the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

ashiima

08 May 2015, 08:44

40

5

11,973

by: bumpbot

19 Jul 2025, 12:37

ER

If a certain factory makes a total of 30,720 wrenches, how many minute

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

14 Nov 2014, 09:46

4

7

3,635

by: bumpbot

30 May 2018, 22:04

ER

If a certain culture of bacteria increases by a constant

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

bagdbmba

29 Aug 2025, 06:07

99

14

28,596

by: Bunuel

29 Aug 2025, 06:12

ER

If a certain computer program scans a total of 5,760 files when it run

555-605 (Medium) | Work and Rate Problems

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

Bunuel

07 Nov 2025, 00:59

1

2

586

by: crystxl

24 Nov 2025, 21:48

ER

If a certain company purchased computers at $2000 each and printers $

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

sunita123

06 Sep 2015, 04:28

23

10

12,291

by: bumpbot

06 Dec 2025, 18:43

ER

If a certain city is losing 12 percent of its daily water supply each

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

16 Dec 2014, 05:24

7

8

9,512

by: bumpbot

08 Jan 2026, 13:42

ER

If a certain charity collected a total of 360 books, videos

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

rohitgoel15

16 Apr 2012, 09:37

47

13

23,387

by: bumpbot

05 Feb 2025, 12:50

ER

If a certain animated short film consists of a total of 21,600 frames

Sub 505 (Easy) | Distance and Speed Problems

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

Bunuel

29 Mar 2017, 04:59

5

2

3,806

by: bumpbot

27 Mar 2022, 03:12

ER

If a certain animated cartoon consists of a total of 24,892 frames on

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

14 Oct 2019, 02:57

3

2,221

by: bumpbot

31 Oct 2020, 18:21

ER

If a certain animated cartoon consists of a total of 17,280 frames on

Sub 505 (Easy) | Distance and Speed Problems

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

Walkabout

13 Dec 2012, 05:41

69

10

28,174

by: Bunuel

08 Apr 2026, 03:43

ER

If a car travelled for two hours, what was it's average speed for

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

01 Jan 2025, 01:30

7

2

1,664

by: bhargavhhhhhhhh

21 Jan 2025, 07:12

ER

If a car traveled from Townsend to Smallville at an average

555-605 (Medium) | Distance and Speed Problems

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

enigma123

07 Nov 2011, 14:46

176

19

30,197

by: Bunuel

24 Jun 2025, 23:56

ER

If a car traveled at a constant speed of 75 km/h during the first two

505-555 (Easy) | Distance and Speed Problems

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

Bunuel

20 Jun 2025, 10:39

2

831

by: Bunuel

28 Jun 2025, 02:45

ER

If a car is driven 150 miles, the fuel tank is filled to what percent

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

15 Aug 2025, 00:30

2

510

by: Souradeep17

15 Aug 2025, 12:50

ER

If a candy manufacturer makes a new candy consisting of a core compose

605-655 (Medium) | Mixture Problems

605-655 (Medium) | Mixture Problems hide tags

Bunuel

08 Nov 2024, 01:30

10

3

2,588

by: Bunuel

08 Nov 2025, 10:59

ER

If a bus took 4 hours to travel from town A to town B, what was its

805+ (Hard) | Distance and Speed Problems

805+ (Hard) | Distance and Speed Problems hide tags

Bunuel

09 May 2023, 13:49

17

5

8,104

by: bumpbot

10 Jan 2026, 05:15

ER

If a building has 6,000 square meters of floor space, how many offices

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

26 Apr 2019, 02:17

84

10

26,549

by: Bunuel

19 Apr 2025, 11:03

ER

If a brokerage firm charged a commission of 2% of the total dollar amo

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

09 Mar 2022, 09:30

4

2

2,100

by: bumpbot

05 Jun 2023, 22:59

ER

If a bowl contains only white and black balls, what is the probability

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

bmwhype2

12 Jun 2025, 08:06

40

7

22,420

by: bumpbot

03 Jan 2026, 03:23

ER

If a bottle is to be selected at random from a certain

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

banksy

26 Feb 2011, 17:42

8

2

12,375

by: bumpbot

28 Jan 2026, 13:21

ER

If a book is selected at random from a shelf in the library, what is t

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

Bunuel

16 May 2024, 01:30

1

909

by: KunalSethi98

16 May 2024, 06:49