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

78,524

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

188,411

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

487,750

by: bb

29 Aug 2025, 13:27

ER

The Financial News Daily has 25 reporters covering Asia, 20 covering

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

18 Jan 2026, 17:15

0

259

by: Bunuel

18 Jan 2026, 17:15

ER

The drawer in the living room contains black, blue and gray glov

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

GMATBusters

14 Mar 2020, 19:26

4

9

3,163

by: bumpbot

18 Jan 2026, 07:17

Each of the 20 students has 9, or 10, or 11 books. What is the average

655-705 (Hard) | Statistics and Sets Problems

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

rohan2345

13 Apr 2019, 03:07

17

4

3,034

by: bumpbot

18 Jan 2026, 04:57

Exactly 'N' people are standing in a queue outside a store

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

amanvermagmat

23 Feb 2018, 23:22

6

5

2,798

by: bumpbot

18 Jan 2026, 02:12

If x is a decimal, What is the hundredths digit of x?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Abhi077

03 Oct 2018, 02:56

2

6

2,190

by: bumpbot

18 Jan 2026, 00:22

ER

There are 1,280 books at a library. Everyone borrows these books at le

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

GMATBusters

07 Oct 2018, 06:56

9

8

2,543

by: bumpbot

17 Jan 2026, 23:55

Joan and Carl played together as a team in the game of Smart Business

655-705 (Hard) | Statistics and Sets Problems

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

Kinshook

27 Oct 2019, 02:27

24

5

4,935

by: joydipb01

17 Jan 2026, 06:40

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During an experiment, Emily collected 11 different temperature reading

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

25 Feb 2020, 01:15

10

8

2,420

by: bumpbot

17 Jan 2026, 04:03

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If a, b, c, and d are positive integers, what is the value of (a + b)

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

09 Mar 2022, 07:00

17

5

4,177

by: bumpbot

16 Jan 2026, 23:45

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If the average size of 3 accounts is $1 million, is the smallest

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

16 Jan 2026, 09:15

1

222

by: shashi1277

16 Jan 2026, 10:48

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Gross profit is equal to selling price minus cost. A car dealer's gros

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

parkhydel

28 Apr 2020, 05:16

7

3

9,554

by: bumpbot

16 Jan 2026, 02:53

ER

If Tim weighs 200 pounds, how much does John weigh?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

15 Jan 2026, 09:15

1

212

by: sivaprasadch

15 Jan 2026, 10:00

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If the average (arithmetic mean) price of apples, bananas and oranges

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

25 Jan 2024, 02:30

3

6

2,071

by: ADisHere

14 Jan 2026, 13:02

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What is the value of integer Y? (1) X is an integer such that X*Y = 6

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

amanvermagmat

09 Jul 2018, 21:26

6

2

1,726

by: bumpbot

14 Jan 2026, 00:24

Five friends received their scores on a quiz. What was the standard de

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

Confide

16 Feb 2024, 19:11

4

2

2,047

by: bumpbot

13 Jan 2026, 12:43

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If f(a) = a^2 + 3a, then the value of 3f(a − b) is how many times grea

555-605 (Medium) | Functions and Custom Characters

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

Bunuel

06 May 2020, 02:17

14

9

7,743

by: bumpbot

13 Jan 2026, 08:14

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The symbol ? represents one of addition, subtraction, multiplication,

555-605 (Medium) | Functions and Custom Characters

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

Bunuel

29 Mar 2023, 01:30

2

1,349

by: bumpbot

13 Jan 2026, 07:42

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The functions p*q denotes p + q and the function max (p, q) denotes

605-655 (Medium) | Functions and Custom Characters

605-655 (Medium) | Functions and Custom Characters hide tags

Bunuel

03 Apr 2024, 01:30

5

4

1,720

by: bumpbot

13 Jan 2026, 07:27

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If [x] denotes the greatest integer less than or equal to x then is

555-605 (Medium) | Functions and Custom Characters

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

Bunuel

24 Aug 2023, 01:31

2

1,356

by: bumpbot

13 Jan 2026, 07:09

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If n is an integer, xy does not equal zero, and x^n = y^n, what is

705-805 (Hard) | Exponents, Inequalities

705-805 (Hard) | Exponents, Inequalities hide tags

Bunuel

10 Jun 2018, 05:19

11

4

3,188

by: bumpbot

13 Jan 2026, 00:38

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If x and y are positive and x + y = 20, is y > x?

805+ (Hard) | Algebra +3 tags

805+ (Hard) | Algebra, Arithmetic, Multiples and Factors, Number Properties hide tags

chetan2u

02 Jun 2018, 21:39

8

4

2,322

by: bumpbot

13 Jan 2026, 00:29

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If t > 0, is k < 8 ? (1) t + 6k = 48 (2) kt < 8

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

25 May 2018, 01:40

4

2

1,285

by: bumpbot

13 Jan 2026, 00:04

ER

A $10 bill (1,000 cents) was replaced with 50 coins having the same to

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

gmatt1476

21 Sep 2019, 16:16

64

7

17,405

by: bumpbot

12 Jan 2026, 13:12

If |a| represents the 'absolute value of a' for any real number 'a',

705-805 (Hard) | Absolute Values, Number Properties

705-805 (Hard) | Absolute Values, Number Properties hide tags

amanvermagmat

21 May 2018, 21:54

8

3

1,826

by: bumpbot

12 Jan 2026, 00:45

ER

The penguins currently living on an island are of two types, Chinstrap

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

31 May 2019, 00:17

28

11

11,192

by: Vivek1707

11 Jan 2026, 10:34

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On Thursday afternoon, two machines, J and R, ran continuously at unif

555-605 (Medium) | Work and Rate Problems

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

Bunuel

09 May 2017, 03:07

14

12

5,007

by: TommasoP

11 Jan 2026, 08:03

ER

In a spelling competition, competitors were required to spell 108

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

Bunuel

30 May 2024, 01:30

10

7

1,755

by: bumpbot

11 Jan 2026, 04:39

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If r is greater than 120 percent of s, is r > 70? (1) 60 < s < 80 (2)

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

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

Bunuel

24 Apr 2018, 05:47

3

5

2,337

by: bumpbot

11 Jan 2026, 00:25

A local community club comprises of 15 members, all are standing in a

655-705 (Hard) | Number Properties, Word Problems

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

amanvermagmat

08 Apr 2018, 05:30

3

2

1,968

by: bumpbot

11 Jan 2026, 00:13

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If b is an integer how many values of b satisfy a < b < c?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

23 Apr 2018, 01:22

8

5

1,838

by: bumpbot

11 Jan 2026, 00:08

ER

What was John's average driving speed in miles per hour during a 15-mi

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

GMATBusters

15 Dec 2018, 07:03

32

4

16,230

by: bumpbot

10 Jan 2026, 20:21

ER

If the symbol ⍟ denotes addition or multiplication, what is the value

555-605 (Medium) | Functions and Custom Characters

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

TheUltimateWinner

05 Feb 2021, 11:47

1

2

1,419

by: bumpbot

09 Jan 2026, 11:47

ER

What are all the important considerations for making accurate

555-605 (Medium) | Non-Math Related

555-605 (Medium) | Non-Math Related hide tags

guddo

14 Aug 2024, 09:23

16

3

4,550

by: steffe440

09 Jan 2026, 07:07

hillary works for 4 days and leaves the job. In how many days can hill

505-555 (Easy) | Distance and Speed Problems

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

Subhajit007

26 May 2019, 06:31

5

2,367

by: bumpbot

09 Jan 2026, 05:11

ER

A certain two-digit integer x when divided by another integer t yields

505-555 (Easy) | Remainders

505-555 (Easy) | Remainders hide tags

Bunuel

23 May 2020, 08:25

27

7

7,722

by: bumpbot

09 Jan 2026, 01:31

ER

In a history class of a humanities course, there are N students

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

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

amanvermagmat

26 Mar 2018, 00:19

4

5

1,665

by: bumpbot

08 Jan 2026, 23:22

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

9,485

by: bumpbot

08 Jan 2026, 13:42

ER

Two cars, A and B, each traveled a distance of 550 miles. Did car A us

Sub 505 (Easy) | Distance and Speed Problems

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

Bunuel

11 Apr 2017, 23:04

5

4

3,266

by: bumpbot

08 Jan 2026, 03:33

Jane invested $50,000 in 1975 and her wealth increased by x percent

605-655 (Medium) | Percent and Interest Problems

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

MT1302

06 Nov 2024, 03:37

3

2

1,299

by: bumpbot

08 Jan 2026, 01:21

ER

In the coordinate plane, region J is defined by all the points (x,y)

805+ (Hard) | Coordinate Plane

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Bunuel

06 Jun 2017, 11:46

44

10

6,863

by: bumpbot

07 Jan 2026, 14:47

ER

In a certain company, the average wages of employees in Town A is X

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

05 Apr 2024, 01:30

25

5

3,964

by: pappal

07 Jan 2026, 13:52

ER

DS Prep resources

555-605 (Medium) | Algebra +2 tags

555-605 (Medium) | Algebra, Fractions and Ratios, Math Related hide tags

miag

07 Jan 2026, 06:04

1

0

214

by: miag

07 Jan 2026, 06:04

ER

A supermarket purchased 60 identically priced tubes of toothpaste for

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

14 Feb 2024, 02:30

4

2

1,854

by: bumpbot

06 Jan 2026, 13:18

ER

A biotechnology student is performing an experiment in which he is try

605-655 (Medium) | Work and Rate Problems

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

Bunuel

29 Dec 2021, 06:30

12

3

2,840

by: bumpbot

06 Jan 2026, 11:39

ER

Simon has P different toys in a bag. If he discards Q toys, then in

705-805 (Hard) | Combinations

705-805 (Hard) | Combinations hide tags

Bunuel

09 Sep 2024, 01:30

21

9

3,216

by: bumpbot

06 Jan 2026, 10:41

ER

If Tom's age is 5 years less than the combined ages of Dick and Harry

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

05 Nov 2019, 06:04

12

5

7,315

by: pappal

06 Jan 2026, 10:40

ER

How many Mondays are in December of a particular year?

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

22 Jan 2016, 10:34

2

3

7,752

by: bumpbot

06 Jan 2026, 10:38

ER

If x, y, and z are consecutive integers and x < y < z, is y an even

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

06 Jan 2023, 02:30

5

3

1,456

by: bumpbot

06 Jan 2026, 05:58

ER

A box contains red and blue balls only. If there are 8 balls in total

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Bunuel

15 Oct 2024, 01:30

10

5

2,403

by: bumpbot

06 Jan 2026, 05:43

ER

Mr. Thomas gave a chemistry test to 25 students and assigned each stud

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

21 Feb 2023, 02:00

1

2

3,663

by: bumpbot

05 Jan 2026, 23:22