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

89,342

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

873

24

194,374

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

496,633

by: bb

23 Aug 2026, 13:01

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Data Sufficiency Butler: 2 Questions Every Day

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1, 2...5, 6

Bunuel

10 Sep 2026, 22:30

474

113

168,072

by: Bunuel

10 Sep 2026, 22:30

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A group of friends dined at a restaurant and paid a total of $132 for

805+ (Hard) | Percent and Interest Problems

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ShortcutoSpeed

13 Nov 2023, 15:33

124

9

16,871

by: bumpbot

11 Sep 2026, 13:06

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All the apartments in a certain building are either three-bedroom apar

655-705 (Hard) | Statistics and Sets Problems

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

gmatophobia

24 Feb 2024, 14:47

101

8

16,069

by: bumpbot

11 Sep 2026, 11:00

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Beginning at noon yesterday, water was removed from a partially filled

805+ (Hard) | Word Problems

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raheelsn

19 Dec 2023, 05:51

144

14

18,161

by: bumpbot

11 Sep 2026, 10:52

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A certain catering company's cost to cater a dinner for n people is 5

655-705 (Hard) | Word Problems

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guddo

24 Jan 2024, 01:17

101

10

15,828

by: Bunuel

11 Sep 2026, 10:30

If a train traveled a route of 1,000 kilometers

605-655 (Medium) | Distance and Speed Problems

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bhargavhhhhhhhh

12 Apr 2025, 00:19

17

5

2,040

by: canopyinthecity

11 Sep 2026, 07:24

ER

A stock returned what percent of its cost in a dividend at the end of

555-605 (Medium) | Word Problems

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Bunuel

10 Sep 2026, 19:00

1

67

by: icandoit4u

11 Sep 2026, 01:27

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GMAT Club World Cup 2022 (DAY 5): The infinite decreasing sequence

805+ (Hard) | Sequences

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Bunuel

15 Jul 2022, 08:00

14

4

4,511

by: bumpbot

11 Sep 2026, 01:06

Hoses P and T simultaneously fill an empty swimming pool that has

555-605 (Medium) | Percent and Interest Problems

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Bunuel

10 Sep 2026, 19:00

0

47

by: Bunuel

10 Sep 2026, 19:00

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The students in a certain college class took a midterm exam and

555-605 (Medium) | Percent and Interest Problems

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Bunuel

09 Feb 2024, 02:30

15

6

4,333

by: bumpbot

10 Sep 2026, 12:45

ER

A store purchased a computer for $800 and then sold it. Was the store

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

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gmatophobia

18 Feb 2024, 22:44

48

4

11,268

by: bumpbot

10 Sep 2026, 11:19

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At a certain fruit stand, oranges cost $0.35 each and grapefruits cost

605-655 (Medium) | Word Problems

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najanapat

22 Feb 2024, 15:10

70

6

13,149

by: bumpbot

10 Sep 2026, 11:14

ER

Does effective advertising require a higher budget expense than

505-555 (Easy) | Non-Math Related

505-555 (Easy) | Non-Math Related hide tags

guddo

14 Aug 2024, 07:17

30

6

4,650

by: MartyMurray

10 Sep 2026, 05:29

During a particular period, water enters a partially filled reservoir

Sub 505 (Easy) | Distance and Speed Problems

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Bunuel

03 Sep 2024, 01:30

3

4

1,348

by: bumpbot

10 Sep 2026, 02:17

ER

Last year, the average price of eight different products sold by Compa

555-605 (Medium) | Statistics and Sets Problems, Word Problems

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Bunuel

22 Oct 2019, 00:03

4

3

2,925

by: bumpbot

10 Sep 2026, 01:55

ER

If each of the 20 bolts of fabric on a shelf is either 100 percent cot

555-605 (Medium) | Overlapping Sets

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Bunuel

07 Oct 2015, 06:20

22

11

9,009

by: bumpbot

10 Sep 2026, 01:47

Hoses P and T simultaneously fill an empty swimming pool that has

555-605 (Medium) | Work and Rate Problems

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Bunuel

09 Sep 2026, 19:00

1

79

by: Sonatomar

09 Sep 2026, 23:57

ER

At a certain pet shop, 1/3 of the pets are dogs and 1/5 of the pets

505-555 (Easy) | Fractions and Ratios, Word Problems

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

kbulse

04 Apr 2019, 21:18

105

12

53,641

by: bumpbot

09 Sep 2026, 21:36

ER

Will the first 10 volumes of a 20-volume encyclopedia fit

505-555 (Easy) | Word Problems

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morya003

26 May 2013, 05:21

54

5

26,135

by: bumpbot

09 Sep 2026, 20:50

Hoses P and T simultaneously fill an empty swimming pool that has

555-605 (Medium) | Work and Rate Problems

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Bunuel

09 Sep 2026, 19:00

1

87

by: kb26

09 Sep 2026, 19:25

ER

Is there a causal relationship between smoking and lung cancer?

605-655 (Medium) | Non-Math Related

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

GMATinsight

26 May 2024, 02:11

113

15

11,222

by: MerryCherry

09 Sep 2026, 19:25

A small radio station was jointly owned by two partners unti

705-805 (Hard) | Min-Max Problems

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blueseas

26 Aug 2013, 09:48

52

3

12,369

by: bumpbot

09 Sep 2026, 11:44

ER

How many men are in a certain company's vanpool program?

Sub 505 (Easy) | Word Problems

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Bunuel

28 May 2026, 09:40

27

16

21,165

by: bumpbot

09 Sep 2026, 08:59

There are only three kinds of books on a bookshelf, science book

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

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Bunuel

08 Sep 2026, 19:00

4

2

138

by: Kevi

09 Sep 2026, 08:47

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

166

10

20,079

by: anushree01

09 Sep 2026, 07:23

If Simba walked at a constant rate, did it take more than 15 minutes

705-805 (Hard) | Work and Rate Problems

705-805 (Hard) | Work and Rate Problems hide tags

Bunuel

02 Aug 2024, 01:31

11

4

2,054

by: gullyboy09

09 Sep 2026, 06:15

ER

A bag contains only 3 different colours and atleast one ball of red

705-805 (Hard) | Probability, Word Problems

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chetan2u

13 Feb 2017, 19:33

22

7

5,133

by: bumpbot

09 Sep 2026, 05:08

An air-powered rifle was shot at 2 different targets. What was the

605-655 (Medium) | Distance and Speed Problems

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Bunuel

08 Sep 2026, 19:00

2

1

124

by: Bananaa

09 Sep 2026, 04:34

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GMAT Club Olympics 2025 (Day 4): African grey parrots cannot detect

705-805 (Hard) | Non-Math Related

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1, 2...7, 8

Bunuel

03 Jul 2025, 08:00

61

144

6,601

by: Bunuel

09 Sep 2026, 03:29

ER

Alice studies for a hours on each of Monday, Tuesday, and Thursday. Sh

605-655 (Medium) | Statistics and Sets Problems

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

MathRevolution

23 Mar 2018, 00:21

10

4

3,084

by: bumpbot

08 Sep 2026, 23:37

A juice company is creating a new fruit punch that is 60% orange

805+ (Hard) | Mixture Problems

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Bunuel

10 Sep 2024, 01:30

13

2

2,647

by: bumpbot

08 Sep 2026, 23:13

ER

For how many days are rations expected to last in a camp of 100 soldie

705-805 (Hard) | Work and Rate Problems

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Bunuel

05 Jul 2017, 00:41

27

7

5,264

by: bumpbot

08 Sep 2026, 22:23

ER

$5000 is invested in one account that pays x percent simple interest p

655-705 (Hard) | Percent and Interest Problems

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nislam

23 May 2022, 13:52

10

4

2,198

by: Bunuel

08 Sep 2026, 22:21

ER

Jack wants to use a circular rug on his rectangular office floor to co

555-605 (Medium) | Geometry, Word Problems

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1, 2

AbdurRakib

24 Jun 2017, 04:14

458

28

53,987

by: tan2026

08 Sep 2026, 09:44

ER

A and B work at digging a ditch alternately for a day each. If A can

805+ (Hard) | Work and Rate Problems

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nick1816

29 Apr 2019, 02:34

56

7

7,218

by: ohhno

08 Sep 2026, 09:40

ER

John is driving from Town A to Town B. What is his average speed over

Sub 505 (Easy) | Distance and Speed Problems

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

Bunuel

25 Aug 2026, 19:00

2

4

296

by: ohhno

08 Sep 2026, 09:38

List L consists of 12, 8, 10, 14, and 6. If two numbers are removed

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

27 Dec 2015, 08:39

6

2

4,492

by: bumpbot

08 Sep 2026, 08:06

ER

If a car traveled from Townsend to Smallville at an average

555-605 (Medium) | Distance and Speed Problems

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1, 2

enigma123

07 Nov 2011, 14:46

178

20

30,583

by: bumpbot

08 Sep 2026, 07:32

ER

Mary has p pencils and q pens in her bag while Sam has r pencils and

555-605 (Medium) | Word Problems

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Bunuel

03 Mar 2020, 03:51

3

2,981

by: bumpbot

08 Sep 2026, 07:26

ER

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

805+ (Hard) | Work and Rate Problems

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GMATinsight

20 Mar 2021, 01:50

17

5

2,200

by: gullyboy09

08 Sep 2026, 06:49

ER

Each of six students, four girls and two boys, spent an average of

555-605 (Medium) | Word Problems

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Bunuel

07 Sep 2026, 19:00

4

142

by: Bananaa

08 Sep 2026, 05:09

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

10

2,760

by: KarishmaB

08 Sep 2026, 03:47

A retailer buys t-shirts from a wholesaler in lots of 25 t-shirts

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

07 Sep 2026, 19:00

1

97

by: Sonatomar

07 Sep 2026, 19:40

ER

What is Toms age now? (1) Tom is now three times as old as he was 6

555-605 (Medium) | Word Problems

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Bunuel

06 Sep 2026, 19:00

5

3

162

by: MarkGMATMentor

07 Sep 2026, 17:02

ER

Pipes A and B are the pipes that fill a tank. Pipes C and D are the

555-605 (Medium) | Work and Rate Problems

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guddo

30 May 2024, 11:05

45

4

7,540

by: bumpbot

07 Sep 2026, 07:30

ER

How much money would Kimberly have saved if she had bought her cheese

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

30 Apr 2026, 10:37

24

7

4,725

by: bumpbot

07 Sep 2026, 07:18

ER

Sue's monthly earnings consist of a monthly salary and a 4 percent com

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

12 Nov 2023, 23:55

62

16

11,003

by: LongZero

07 Sep 2026, 07:06

ER

At a certain hotel, every room has air conditioning or cable TV

655-705 (Hard) | Overlapping Sets

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BrentGMATPrepNow

20 Sep 2016, 13:54

19

8

5,030

by: egmat

07 Sep 2026, 05:02

ER

If Car X followed Car Y across a certain bridge that is 1/2 mile long,

705-805 (Hard) | Word Problems, Work and Rate Problems

705-805 (Hard) | Word Problems, Work and Rate Problems hide tags

GMATBusters

11 Apr 2020, 18:56

16

18

5,027

by: egmat

07 Sep 2026, 04:55

ER

Max purchased a guitar for a total of $624, which consisted of the

605-655 (Medium) | Percent and Interest Problems

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

AbdurRakib

24 Jun 2017, 03:09

408

10

50,170

by: egmat

07 Sep 2026, 04:49