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

181

15

82,716

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of May 2026

1, 2

Bunuel

01 Jan 2026, 05:45

861

24

190,955

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

490,899

by: bb

29 Aug 2025, 13:27

ER

Which company reported the larger dollar increase in earnings?

505-555 (Easy) | Percent and Interest Problems

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

Bunuel

31 May 2016, 02:39

3

2

5,379

by: bumpbot

26 Jan 2022, 03:00

ER

Which burns for longer, a candle made of 100 grams of beeswax or one

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

ExpertsGlobal5

13 Jan 2026, 19:00

1

2

365

by: ExpertsGlobal5

18 Jan 2026, 07:30

ER

Which angle is smaller, x or y?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

filipembribeiro

01 Jun 2021, 04:00

1

960

by: chetan2u

01 Jun 2021, 05:19

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Whether x+17 when divided by 5 leaves remainder 2 ?

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GMATbuster92

19 Jul 2018, 08:58

3

1,242

by: amanvermagmat

19 Jul 2018, 22:45

ER

Whether x>y>z?

655-705 (Hard) | Absolute Values, Inequalities

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

1, 2

xyztroy

12 Apr 2010, 14:21

65

20

13,482

by: bumpbot

21 Nov 2023, 00:29

ER

Where is the center of a circle on the xy plane?

655-705 (Hard) | Coordinate Plane, Geometry

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

Bunuel

31 Jan 2016, 08:26

15

5

3,395

by: bumpbot

27 Nov 2019, 05:32

ER

Whenever Tom pays an amount of 2-digit integer in a cafeteria, he calc

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

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

dabaobao

30 Mar 2019, 12:02

18

6

4,427

by: egmat

10 Feb 2026, 03:00

ER

Whenever Sally takes a cab and the fare is between $15 and $

605-655 (Medium) | Percent and Interest Problems

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

SoniaSaini

27 Jan 2011, 09:30

20

6

9,142

by: bumpbot

23 Aug 2025, 05:48

ER

Whenever martin has a restaurant bill with an amount between

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

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

GMATD11

12 Feb 2011, 13:48

196

19

44,178

by: bumpbot

03 Jun 2026, 04:53

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Whenever Hattie has a restaurant bill with an amount between $20 and

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

29 Jul 2024, 01:30

7

3

1,329

by: wwcd

29 Jul 2024, 23:54

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When y^2 is divided by 6, the remainder is r. What is the remainder wh

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

02 Dec 2019, 01:28

15

2

2,964

by: bumpbot

25 Dec 2024, 00:51

ER

When Y is divided by 2, is the remainder 1?

555-605 (Medium) | Number Properties, Remainders

555-605 (Medium) | Number Properties, Remainders hide tags

ashwink

16 Mar 2017, 07:13

12

3

5,989

by: Deepakjhamb

09 Dec 2020, 10:13

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When x is divided by 3, the remainder is 2, and when y is divided by 7

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

Bunuel

27 Apr 2016, 00:06

15

9

8,430

by: bumpbot

02 Apr 2023, 09:27

ER

When x and y are integers, is x + y an even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

13 Sep 2023, 05:00

2

1

826

by: nasgmatbag

14 Sep 2023, 05:55

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When x and y are integers, a3b4=c, a=?

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MathRevolution

05 Jun 2016, 19:32

1

3

1,954

by: GGMU

19 Jul 2017, 10:16

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When x + y is integer, is y an integer? (1) x is an integer.

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

20 Apr 2023, 08:15

1

1,107

by: stne

21 Apr 2023, 23:44

ER

When working together at their constant rates, machines A and B can

505-555 (Easy) | Work and Rate Problems

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

Bunuel

12 Feb 2025, 01:30

4

3

975

by: GMATinsight

12 Feb 2025, 20:38

ER

When worker A and worker B work together they produce 100 bricks in 2

505-555 (Easy) | Work and Rate Problems

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

Bunuel

30 Jul 2024, 01:30

2

1

1,519

by: Nidzo

31 Jul 2024, 02:14

ER

When tickets to a popular concert went on sale, a group of f

805+ (Hard) | Statistics and Sets Problems, Word Problems

805+ (Hard) | Statistics and Sets Problems, Word Problems hide tags

nidhi12

04 Jun 2014, 05:27

18

4

4,450

by: bumpbot

21 Jan 2026, 02:06

ER

When there are consecutive integers and if their range is equal to the

705-805 (Hard) | Statistics and Sets Problems

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

MathRevolution

29 Feb 2016, 20:39

20

6

4,756

by: pappal

18 Mar 2026, 14:00

ER

When the wind speed is 9 miles per hour, the wind-chill factor w is

505-555 (Easy) | Functions and Custom Characters, Word Problems

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

nalinnair

23 May 2016, 03:35

101

11

25,874

by: bumpbot

11 Feb 2025, 14:37

When the product of the digits of the two-digit positive integer x is

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

BillyZ

02 Feb 2017, 01:21

1

2

2,168

by: eswarchethu135

31 Mar 2019, 06:49

ER

When the positive number a is rounded to the nearest tenth

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

frankiegar

19 Sep 2012, 06:11

101

13

26,523

by: licrolicro

10 Jul 2025, 13:26

ER

When the positive integer x is divided by the positive integ

705-805 (Hard) | Fractions and Ratios, Word Problems

705-805 (Hard) | Fractions and Ratios, Word Problems hide tags

chetan86

09 Jul 2014, 08:01

48

9

9,949

by: bumpbot

04 Apr 2025, 03:44

ER

When the positive integer x is divided by 4, is the remainder equal to

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

Bunuel

10 Nov 2014, 07:53

102

13

27,799

by: bumpbot

17 Apr 2025, 19:56

ER

When the positive integer n is divided by 25, the remainder

505-555 (Easy) | Remainders

505-555 (Easy) | Remainders hide tags

combres

15 Sep 2007, 11:19

44

15

23,910

by: totaltestprepNick

24 Feb 2026, 13:32

When the positive integer n is divided by 15, the remainder is 4. What

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

VERBAL1

03 Jul 2020, 11:12

4

2

2,286

by: v12345

03 Jul 2020, 19:29

ER

When the point totals for 20 participants were recorded, thr

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

kevincan

15 Mar 2026, 16:03

2

1

290

by: Edskore

16 Mar 2026, 01:27

ER

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

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

19 Jan 2024, 02:30

3

2

1,914

by: pratiksha1998

20 Nov 2024, 11:03

ER

When the lengths of two opposite sides of a square garden

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Areto

27 Jun 2014, 13:16

13

7

11,038

by: bumpbot

13 May 2023, 14:19

ER

When the digits of two-digit, positive integer M are reversed, the res

705-805 (Hard) | Multiples and Factors, Number Properties

705-805 (Hard) | Multiples and Factors, Number Properties hide tags

pratikshr

30 Sep 2014, 06:56

310

17

42,100

by: bumpbot

02 Jul 2025, 13:56

ER

When Sarah visited the Canadian side of Niagara Falls, her cell phone

655-705 (Hard) | Algebra, Word Problems

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

gmat1393

05 Oct 2019, 10:16

1

2,195

by: ccooley

05 Oct 2019, 15:08

ER

When rounded to the nearest hundredths digit, the number p becomes 6.7

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

20 May 2020, 08:42

4

2,245

by: chetan2u

20 May 2020, 20:32

ER

When processing iron ore into stainless steel, high-purity oxygen

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rajatchopra1994

06 Nov 2020, 00:29

2

2,646

by: IanStewart

06 Nov 2020, 10:26

ER

When positive integer y is divided by 51, the remainder is x. What is

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

20 Apr 2016, 01:02

19

9

5,288

by: bumpbot

28 Jan 2021, 14:25

ER

When positive integer x is divided by 7 the quotient is q and the rema

705-805 (Hard) | Multiples and Factors

705-805 (Hard) | Multiples and Factors hide tags

registerincog

18 Nov 2013, 08:55

40

10

16,209

by: Bunuel

09 Sep 2024, 00:15

ER

When positive integer x is divided by 4, how many non-zero digits will

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

11 Jan 2018, 23:30

1

2

1,902

by: bumpbot

27 Nov 2023, 13:53

ER

When positive integer p is divided by 7 the remainder is 2.

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

xALIx

05 Jun 2014, 01:17

50

16

21,333

by: bumpbot

07 Feb 2025, 08:17

ER

When positive integer n is divided by 7, the remainder is 2. What is

Sub 505 (Easy) | Remainders

Sub 505 (Easy) | Remainders hide tags

Bunuel

04 May 2022, 01:30

6

4

2,675

by: bumpbot

06 Dec 2024, 03:07

ER

When positive integer n is divided by 7, the remainder is 2. What is

555-605 (Medium) | Multiples and Factors

555-605 (Medium) | Multiples and Factors hide tags

Bunuel

26 Apr 2022, 01:30

5

1

1,228

by: zhanbo

26 Apr 2022, 03:46

ER

When positive integer n is divided by 7, the remainder is 1. If n is

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

Bunuel

06 May 2022, 01:30

4

3

2,661

by: varshas044

11 Oct 2022, 09:24

ER

When positive integer n is divided by 3, the remainder is 2; and when

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

1, 2

priyankurml

08 Sep 2023, 08:00

341

20

81,530

by: rak08

28 May 2025, 03:54

ER

When Oswaldo was promoted, he expected his salary to increas

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

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

kevincan

20 Mar 2026, 04:11

2

529

by: adconsectetur

27 Apr 2026, 09:35

ER

When opened and lying flat, a birthday card is in the shape of a regul

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

gmatt1476

21 Sep 2019, 18:21

144

19

18,318

by: bumpbot

06 Sep 2024, 11:53

ER

When one piece of fruit is taken at random from a fruit bowl, what is

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

10 Aug 2022, 15:30

6

3

2,676

by: bumpbot

06 Nov 2025, 18:30

ER

When one new number is included in an existing set of 6 numbers

605-655 (Medium) | Statistics and Sets Problems

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

chetan86

12 Sep 2014, 07:24

27

6

9,981

by: bumpbot

10 Feb 2026, 10:51

ER

When n is divided by 9 the remainder is 2. If n is a positive integer,

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

nislam

24 Jun 2022, 09:55

3

1,933

by: AmanAngrish

15 Jul 2022, 20:45

ER

When n is divided by 5, what is the remainder?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

17 May 2023, 03:30

2

1,183

by: TheBipedalHorse

17 May 2023, 08:47

ER

When n and k are positive integers, what is the greatest common

555-605 (Medium) | Multiples and Factors

555-605 (Medium) | Multiples and Factors hide tags

Bunuel

19 Jun 2023, 06:00

7

3

1,254

by: bumpbot

28 Aug 2025, 14:10

ER

When line k, expressed by the equation y = mx + b, is graphed on a coo

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

Bunuel

07 Feb 2020, 06:14

7

5

4,601

by: Bunuel

22 May 2026, 23:42