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

189

15

89,036

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of June 2026

1, 2

Bunuel

01 Jan 2026, 05:45

872

24

194,243

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

Guides & Resources

Guides & Resources hide tags

bb

23 Aug 2026, 13:03

1.6k

1

496,228

by: bb

23 Aug 2026, 13:01

A total of $100,000 was invested in one year. A part of this amount ea

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

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

siddharthkapoor

15 Jul 2020, 09:12

14

4

3,226

by: bumpbot

25 Jul 2026, 12:18

ER

At a certain company, 30 percent of the employees live in City R. If 2

555-605 (Medium) | Percent and Interest Problems, Word Problems

555-605 (Medium) | Percent and Interest Problems, Word Problems hide tags

Bunuel

23 May 2020, 06:33

34

6

13,999

by: Usernamevisible

25 Jul 2026, 11:12

ER

Esther bought a computer at a price of p dollars, and she paid a sales

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

21 Apr 2024, 08:45

59

9

10,112

by: Usernamevisible

25 Jul 2026, 10:35

ER

Lee has three separate savings accounts. What is the total amount of

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

guddo

24 Jan 2024, 01:33

81

9

10,710

by: bumpbot

25 Jul 2026, 09:53

ER

In a locker room each row of lockers has the same number of lockers

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

guddo

24 Jan 2024, 23:52

24

6

6,968

by: bumpbot

25 Jul 2026, 09:48

Alan and Sue have each been saving one dollar a day and will continue

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

gmatt1476

21 Sep 2019, 16:30

74

9

14,977

by: bumpbot

25 Jul 2026, 09:37

ER

A paint mixture was formed by mixing exactly 3 colors of paint. By vol

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

Bunuel

26 Apr 2019, 03:18

323

17

48,359

by: MANASH94

25 Jul 2026, 08:18

ER

If the average (arithmetic mean) of four positive numbers is

705-805 (Hard) | Arithmetic, Statistics and Sets Problems

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

rxs0005

01 Dec 2010, 04:24

40

7

9,564

by: bumpbot

25 Jul 2026, 06:22

For a lottery ticket, Emily chose six numbers with an average of 10.

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

12 Mar 2023, 10:03

4

2

1,266

by: bumpbot

25 Jul 2026, 06:14

How many digits does integer x have?

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

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

Bunuel

13 Dec 2016, 11:10

7

3

4,203

by: GulfTube

25 Jul 2026, 05:41

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State X has a sales tax rate of k percent on all purchases and State Y

555-605 (Medium) | Percent and Interest Problems

555-605 (Medium) | Percent and Interest Problems hide tags

gmatt1476

21 Sep 2019, 16:40

68

10

14,410

by: bumpbot

25 Jul 2026, 02:43

ER

A certain cake has two layers with pieces of fruit on top of each

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

lazarogb

20 Nov 2023, 09:23

69

14

18,954

by: bumpbot

25 Jul 2026, 02:39

ER

Two workers, Ava and Ben, are hired to mow a field at a community park

655-705 (Hard) | Work and Rate Problems

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

Bunuel

19 Jul 2026, 19:00

7

2

521

by: Bunuel

25 Jul 2026, 01:00

[x] is the greatest integer less than or equal to x, eg, [1.5]=1. [m]=

505-555 (Easy) | Functions and Custom Characters

505-555 (Easy) | Functions and Custom Characters hide tags

siddharthkapoor

09 Oct 2020, 23:20

4

2

1,612

by: bumpbot

24 Jul 2026, 20:13

ER

Megacorp International spent a total of $90,000,000 on television

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

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

Bunuel

23 Jul 2026, 19:00

1

2

356

by: MarkGMATMentor

24 Jul 2026, 18:18

ER

Price of a Belgian chocobar has increased by x percent but the number

705-805 (Hard) | Percent and Interest Problems

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

Bunuel

05 Nov 2024, 01:45

11

3

1,779

by: MarkGMATMentor

24 Jul 2026, 17:23

ER

Saul invests an amount of dollars in investment A at i% simple annual

705-805 (Hard) | Percent and Interest Problems

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

Bunuel

26 Jul 2026, 06:11

32

9

7,305

by: bumpbot

24 Jul 2026, 12:51

ER

Every object in a box is either a sphere or a cube, and every object

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

26 Jun 2017, 02:41

67

14

28,328

by: bumpbot

24 Jul 2026, 12:23

ER

Last year, a certain bakerys expenses for manufacturing pretzels were

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

09 Sep 2024, 07:16

13

5

2,614

by: bumpbot

24 Jul 2026, 11:27

ER

If the average (arithmetic mean) of the assessed values of x houses is

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

sondenso

20 Nov 2023, 09:37

84

12

27,509

by: bumpbot

24 Jul 2026, 10:42

ER

Ken bought a shirt at a price of D dollars, to which a sales tax of p

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

nick13

16 Sep 2024, 07:44

100

10

17,993

by: bumpbot

24 Jul 2026, 10:26

ER

33 out of the 47 students in an advanced degree program have a higher

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

16 Sep 2015, 07:23

56

5

9,693

by: bumpbot

24 Jul 2026, 10:22

ER

Five boxes together weigh 150 pounds. What is the weight of the

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

13 Mar 2023, 01:30

6

4

2,451

by: bumpbot

24 Jul 2026, 03:54

ER

GMAT Club Olympics 2025 (Day 6): A department store received

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

1, 2...5, 6

Bunuel

07 Jul 2025, 08:00

92

101

3,726

by: bumpbot

24 Jul 2026, 00:51

ER -1

GMAT Club Olympics 2025 (Day 4): A rental firm has only two distinct

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

1, 2...5, 6

Bunuel

03 Jul 2025, 08:00

62

103

4,361

by: bumpbot

24 Jul 2026, 00:47

ER

GMAT Club Olympics 2025 (Day 3): At a summer camp, there are exactly

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

1, 2...5, 6

Bunuel

02 Jul 2025, 08:00

60

112

4,553

by: bumpbot

24 Jul 2026, 00:28

ER

GMAT Club Olympics 2025 (Day 2): Out of 180 gym members, is the number

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

1, 2...8, 9

Bunuel

01 Jul 2025, 08:00

134

163

5,877

by: bumpbot

23 Jul 2026, 23:57

ER

During a sale, a clothing store sold each shirt at a price of $15 and

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

agdimple333

01 May 2011, 13:48

134

10

39,688

by: Virussss

23 Jul 2026, 13:31

ER

Brian works as a consultant. His only work comes from three companies

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

abhiramkrishna

01 May 2026, 10:50

13

6

946

by: FrozenDragon

23 Jul 2026, 11:38

At a two-day seminar, 90 percent of those registered attended the semi

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

TeHCM

17 Dec 2005, 23:41

215

9

56,682

by: bumpbot

23 Jul 2026, 11:38

ER

The table above shows the morning schedule for train X . If Juan took

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

sondenso

01 Nov 2018, 03:41

78

10

22,945

by: bumpbot

23 Jul 2026, 10:55

ER

Exactly 3 investorsA, B, and Cinvested in a certain business, each

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

guddo

14 Aug 2024, 07:42

12

5

4,064

by: bumpbot

23 Jul 2026, 10:52

A supermarket purchased 60 identically priced tubes of toothpaste

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

22 Jul 2026, 19:00

1

276

by: sonit1987

23 Jul 2026, 10:26

ER

In the first hour of a bake sale, students sold either cho

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

emmak

08 Jun 2013, 19:04

94

14

16,145

by: GulfTube

23 Jul 2026, 07:10

Of the members of a marching band, what percentage are boys who play

505-555 (Easy) | Percent and Interest Problems

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

Bunuel

22 Jul 2026, 19:00

1

302

by: SparkRest

23 Jul 2026, 06:22

Last year, a hotel franchise decided not to pay a few employees'

705-805 (Hard) | Percent and Interest Problems

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

Cneltonmp

05 Jul 2026, 10:01

9

3

613

by: tanishapriya96

23 Jul 2026, 00:44

ER

If the probability that there is exactly 1 defective pen in a box is 1

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

13 Nov 2019, 01:52

22

2

5,735

by: BongBideshini

22 Jul 2026, 21:37

ER

There are x people and y chairs in a room where x and y are

805+ (Hard) | Combinations

805+ (Hard) | Combinations hide tags

1, 2

JusTLucK04

23 Apr 2014, 10:00

245

23

37,095

by: GulfTube

22 Jul 2026, 09:53

A coat sells for one price in children's sizes and another price in

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

21 Jul 2026, 19:00

1

311

by: ShortDirt

22 Jul 2026, 04:37

ER

Yvonne purchased an item and the total cost, including tax, was less.

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

MrWhite

08 Nov 2023, 00:21

195

12

20,465

by: Usernamevisible

22 Jul 2026, 01:50

ER

Julian had five indoor potted plants, each of which - in order to

655-705 (Hard) | Non-Math Related

655-705 (Hard) | Non-Math Related hide tags

HarshitaV

24 Nov 2025, 09:46

33

7

2,778

by: egmat

22 Jul 2026, 01:17

ER

Is the standard deviation of the set of measurements x1, x2,

505-555 (Easy) | Statistics and Sets Problems

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

Bunuel

25 Jun 2012, 03:01

186

15

52,045

by: bumpbot

21 Jul 2026, 21:48

ER

Both Betty and Wilma earn annual salaries of more than $50,000.

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

enigma123

20 Nov 2023, 08:17

67

11

19,251

by: bumpbot

21 Jul 2026, 19:48

ER

Bowls X and Y each contained exactly 2 jelly beans, each of which was

605-655 (Medium) | Combinations

605-655 (Medium) | Combinations hide tags

boomtangboy

08 Apr 2012, 09:44

200

14

41,145

by: bumpbot

21 Jul 2026, 17:31

ER

Pam and Ed are in a line to purchase tickets. How many

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

rxs0005

06 Aug 2010, 04:32

62

2

13,050

by: bumpbot

21 Jul 2026, 17:31

ER

While on a straight road, Car X and Car Y are traveling at

555-605 (Medium) | Distance and Speed Problems

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

1, 2

vix

07 Dec 2012, 10:38

255

22

52,428

by: SameeranKarpe

21 Jul 2026, 11:54

ER

For the team of salespeople in organization X, the amount of incentive

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

07 Jan 2025, 01:30

2

1,020

by: bumpbot

21 Jul 2026, 11:14

ER

Aadesh and Belmira work in sales for a large company and receive [m]10

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

03 Jun 2026, 02:30

2

5

665

by: SKP220292

21 Jul 2026, 11:01

When the members of group A are divided into subgroups of 13 people

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

20 Jul 2026, 19:00

6

3

475

by: Edskore

21 Jul 2026, 10:07

In a pet store survey about dog and cat owners, it was found that 18%

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

20 Jul 2026, 19:00

2

4

402

by: Edskore

21 Jul 2026, 10:06