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

179

15

79,867

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

858

24

189,007

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

488,717

by: bb

29 Aug 2025, 13:27

ER

What does (1 + m)(1 m + m^2 m^3) = ? (1) m^6 = 64 (2) m^-3 = -1/8

655-705 (Hard) | Algebra, Exponents

655-705 (Hard) | Algebra, Exponents hide tags

Bunuel

21 Mar 2022, 05:08

8

2

1,925

by: bumpbot

13 Nov 2025, 09:25

ER

A group of men and women gathered to compete in a marathon.

655-705 (Hard) | Statistics and Sets Problems

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

enigma123

17 Nov 2011, 16:42

182

17

35,568

by: bumpbot

13 Nov 2025, 08:51

ER

There are 300 people in a conference hall. Each person is either an en

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

19 Apr 2022, 07:11

8

3

2,455

by: bumpbot

13 Nov 2025, 04:39

ER

Are x and y both positive? (1) 2x - 2y = 1 (2) x/y > 1

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

1, 2, 3, 4

Manbehindthecurtain

05 Apr 2018, 13:19

1.0k

64

193,332

by: Bunuel

12 Nov 2025, 10:03

ER

A vendor sold an item after reducing the price of the item by p

655-705 (Hard) | Min-Max Problems, Percent and Interest Problems

655-705 (Hard) | Min-Max Problems, Percent and Interest Problems hide tags

MartyMurray

07 Mar 2026, 09:16

9

4

1,136

by: MartyMurray

12 Nov 2025, 09:29

ER

The average weight of people in a group is 150 pounds. If no two peop

655-705 (Hard) | Statistics and Sets Problems

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

gmatophobia

08 Nov 2022, 14:59

10

6

3,093

by: Stella5200

12 Nov 2025, 00:57

ER

What is the units digit of the three-digit integer N ?

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

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

Bunuel

07 Sep 2015, 22:45

59

16

9,816

by: Stella5200

11 Nov 2025, 21:23

ER

If m, s are the average and standard deviation of integers a, b, c

655-705 (Hard) | Statistics and Sets Problems

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

ashwink

12 Mar 2017, 20:49

29

5

9,442

by: pappal

11 Nov 2025, 13:02

ER

For positive integers x and y, x=19!+y. Is x a prime number?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

18 Apr 2017, 05:12

15

4

4,630

by: pappal

11 Nov 2025, 12:25

ER

Two dressmakers, Sue and Anne, sewed costumes for a local theater prod

655-705 (Hard) | Work and Rate Problems

655-705 (Hard) | Work and Rate Problems hide tags

Bunuel

29 Oct 2015, 01:28

37

7

7,798

by: bumpbot

11 Nov 2025, 07:20

ER

In the graph above, A, B, and C represent the sales of major soft drin

655-705 (Hard) | Fractions and Ratios

655-705 (Hard) | Fractions and Ratios hide tags

Bunuel

20 Dec 2015, 06:29

9

2

5,037

by: bumpbot

11 Nov 2025, 04:55

ER

For all numbers t, let //t// be defined as the greatest integer less

655-705 (Hard) | Functions and Custom Characters, Number Properties

655-705 (Hard) | Functions and Custom Characters, Number Properties hide tags

martie11

06 Feb 2019, 04:00

184

17

31,338

by: Bunuel

11 Nov 2025, 00:21

ER

If the median and the average (arithmetic mean) of 4 different numbers

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

25 Jan 2024, 02:30

4

2,222

by: bumpbot

10 Nov 2025, 21:01

ER

a, b, and c are integers in the set {a, b, c, 51,85,72}.

655-705 (Hard) | Statistics and Sets Problems

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

jlgdr

20 Sep 2013, 16:39

51

14

9,790

by: bumpbot

10 Nov 2025, 13:15

ER

On a certain fishing boat that catches tuna, wheeled carts

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

xyztroy

07 Nov 2013, 01:17

10

9

4,416

by: bumpbot

10 Nov 2025, 13:13

ER

Paul, a painter, paints only flowers or cats in his notebook.

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

13 Feb 2023, 02:30

5

2

1,527

by: bumpbot

10 Nov 2025, 05:10

ER

In the x-y plane y=p(x)=ax^2+bx+c pass through (-1,0) and

655-705 (Hard) | Functions and Custom Characters

655-705 (Hard) | Functions and Custom Characters hide tags

MathRevolution

13 Nov 2017, 01:11

5

3

3,300

by: lalgur1

10 Nov 2025, 03:53

ER

In the rectangular coordinate system above, if OP < PQ, is the area of

655-705 (Hard) | Coordinate Plane, Geometry

655-705 (Hard) | Coordinate Plane, Geometry hide tags

1, 2

eybrj2

20 Aug 2019, 01:52

331

37

47,777

by: Bunuel

10 Nov 2025, 02:44

ER

S and T are two water pumps that run at constant rates. If pump T pump

655-705 (Hard) | Work and Rate Problems

655-705 (Hard) | Work and Rate Problems hide tags

Bunuel

26 Jun 2015, 02:51

43

12

9,585

by: bumpbot

09 Nov 2025, 08:38

ER

Of the 66 people in a certain auditorium, at most 6 people

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

16 Jul 2012, 04:49

309

16

43,812

by: findingmyself

09 Nov 2025, 08:19

Ava and Ben played together as a team in the game of Mind Masters agai

655-705 (Hard) | Statistics and Sets Problems

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

iamjatinagrawal

09 Nov 2025, 02:47

3

1

375

by: piyushnakhate

09 Nov 2025, 06:52

ER

Each member in a club with 90 members voted for exactly one of 4

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

17 Nov 2022, 13:43

3

2

1,677

by: bumpbot

09 Nov 2025, 06:08

ER

In baseball, a pitchers Earned Run Average, A, is calculated by means

655-705 (Hard) | Fractions and Ratios, Word Problems

655-705 (Hard) | Fractions and Ratios, Word Problems hide tags

MartyMurray

07 Mar 2026, 09:17

2

1

660

by: gmatophobia

09 Nov 2025, 01:47

ER

Of the students in a certain school, 65 percent are enrolled in an art

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

02 Aug 2024, 01:31

6

5

2,111

by: anshumanmalliwal

08 Nov 2025, 23:43

ER

GMAT Club Olympics 2024 (Day 6): At the Olympics, each trainer in the

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

15 Jul 2024, 07:00

26

17

6,098

by: bumpbot

08 Nov 2025, 12:03

ER

The nth term, where n > 1, in a sequence S of positive integers is def

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

19 Nov 2019, 01:39

21

8

6,103

by: bumpbot

08 Nov 2025, 03:07

ER

A shoe store purchased 50 pairs of running shoes and sold some of them

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

guddo

28 Jan 2024, 07:37

39

4

14,401

by: soumyab12

08 Nov 2025, 02:52

ER

A certain list, L, contains a total of n numbers, not necessarily dist

655-705 (Hard) | Statistics and Sets Problems

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

1, 2

Bunuel

26 Apr 2019, 03:31

432

23

43,831

by: bumpbot

07 Nov 2025, 04:15

ER

The 9 participants in a race were divided into 3 teams with 3 runners

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

gmatt1476

21 Sep 2019, 20:05

125

9

17,050

by: bumpbot

06 Nov 2025, 12:13

ER

Amanda wishes to buy a new computer for herself this year. She can

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

04 Oct 2024, 01:30

12

2

1,877

by: bumpbot

06 Nov 2025, 11:26

ER

In what year did the population of City X first exceed 1,000,000 ?

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

09 Feb 2022, 12:00

9

5

3,619

by: gemministorm

06 Nov 2025, 10:23

ER

GMAT Club Olympics 2025 (Day 5): Bob is organizing his stamp

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

1, 2, 3, 4, 5

Bunuel

04 Jul 2025, 08:00

82

92

3,908

by: Bunuel

06 Nov 2025, 07:04

ER

Of the 11 movies playing at a certain cinema complex, some are action

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

07 Sep 2021, 05:27

2

2,687

by: sanjitscorps18

05 Nov 2025, 08:30

What is the value of (5a - 4b + 10c)/(3b) ? (1) b-a = 2c (2)

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

amanvermagmat

31 May 2018, 22:42

5

4

2,853

by: bumpbot

05 Nov 2025, 05:02

ER

Seventy percent of the 30,000 trees in an orchard are apple trees, and

655-705 (Hard) | Percent and Interest Problems

655-705 (Hard) | Percent and Interest Problems hide tags

Bunuel

28 Aug 2024, 01:30

10

2

1,826

by: crimson_noise

04 Nov 2025, 08:34

ER

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

655-705 (Hard) | Percent and Interest Problems

655-705 (Hard) | Percent and Interest Problems hide tags

nislam

23 May 2022, 13:52

8

3

1,974

by: bumpbot

04 Nov 2025, 07:08

ER

Tickets to a play cost $10 for children and $25 for adults. If 90

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Gmatdecoder

30 Apr 2015, 09:08

46

10

15,856

by: bumpbot

04 Nov 2025, 00:30

ER

Consider natural numbers m and n both less than 100. Is m/n a terminat

655-705 (Hard) | Fractions and Ratios, Number Properties

655-705 (Hard) | Fractions and Ratios, Number Properties hide tags

TheUltimateWinner

15 Jun 2019, 10:21

12

3

2,879

by: bumpbot

03 Nov 2025, 23:56

ER

If each of the stamps Carla bought cost 20, 25, or 30 cents and she bo

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

23 May 2020, 08:50

69

12

15,629

by: bumpbot

02 Nov 2025, 16:02

ER

Workers A, B, and C, working at their individual constant rates, can

655-705 (Hard) | Work and Rate Problems

655-705 (Hard) | Work and Rate Problems hide tags

guddo

30 May 2024, 12:24

144

16

13,539

by: NEYR0N

01 Nov 2025, 11:49

ER

If for any pair of positive integers x and y, their arithmetic

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

bmwhype2

10 Mar 2023, 13:10

15

2

13,610

by: manan01

31 Oct 2025, 22:48

A basketball team plays 10 games, and it scores 12 points on average.

655-705 (Hard) | Statistics and Sets Problems

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

BillyZ

28 Mar 2017, 15:49

7

5

4,290

by: bumpbot

29 Oct 2025, 13:37

ER

If 500 is the multiple of 100 that is closest to x and 400 is the mult

655-705 (Hard) | Fractions and Ratios, Multiples and Factors

655-705 (Hard) | Fractions and Ratios, Multiples and Factors hide tags

gmatbull

19 Aug 2010, 02:57

212

15

39,873

by: bumpbot

28 Oct 2025, 23:09

ER

For any integers x and y, min(x, y) and max(x, y) denote the

655-705 (Hard) | Functions and Custom Characters, Min-Max Problems

655-705 (Hard) | Functions and Custom Characters, Min-Max Problems hide tags

1, 2

snkrhed

29 May 2010, 13:23

561

20

121,814

by: bumpbot

28 Oct 2025, 22:54

ER

Pump A and B together put water in the empty tank of which volume is

655-705 (Hard) | Work and Rate Problems

655-705 (Hard) | Work and Rate Problems hide tags

Bunuel

03 Oct 2024, 01:30

10

2

1,630

by: bumpbot

28 Oct 2025, 13:48

ER

|s – t| > ||s| - |t||?

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

fattty

13 Jan 2016, 23:39

131

9

15,023

by: Pranavsawant

28 Oct 2025, 13:47

ER

If x^3-x=n and x is a positive integer greater than 1, is n

655-705 (Hard) | Multiples and Factors, Remainders

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

enigma123

31 Jan 2012, 16:25

246

16

45,698

by: bumpbot

28 Oct 2025, 09:22

ER

In a group of 70, every member speaks English or French.

655-705 (Hard) | Overlapping Sets, Word Problems

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

Bunuel

08 May 2025, 02:19

5

7

1,863

by: Bunuel

28 Oct 2025, 07:51

ER

Nate Dogg sings hooks for two different prices: $52 for an EP and $58

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

07 Sep 2015, 04:34

17

5

5,263

by: bumpbot

27 Oct 2025, 20:35

ER

Alex bought a smartwatch at $200 from his friend and sold it to anoth

655-705 (Hard) | Percent and Interest Problems

655-705 (Hard) | Percent and Interest Problems hide tags

EgmatQuantExpert

20 Nov 2024, 00:03

20

6

6,740

by: Strategix

27 Oct 2025, 05:37