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

176

15

78,863

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

856

24

188,610

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

488,056

by: bb

29 Aug 2025, 13:27

ER

Solution A costs $5 per litre and Solution B costs $9 per litre.

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

Bunuel

07 Nov 2024, 01:30

9

3

1,869

by: QuantMadeEasy

07 Nov 2024, 11:14

ER

If t and x are integers, what is the value of x?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

surupab

18 Apr 2017, 07:32

307

17

54,707

by: bumpbot

07 Nov 2024, 11:12

ER

Jane and Thomas each have more than 700 stamps. What is the ratio of

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

07 Nov 2024, 01:30

6

4

1,215

by: QuantMadeEasy

07 Nov 2024, 11:07

ER

If n is a positive integer and r is the remainder when 4 + 7n is divid

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

1, 2

LM

17 Jun 2019, 04:07

376

20

60,628

by: GmatCracker09

07 Nov 2024, 08:30

ER

There were initially no black marbles in a jar. Subsequently

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

marcodonzelli

29 Nov 2012, 04:11

37

12

15,961

by: bumpbot

07 Nov 2024, 05:45

ER

If s and t are two different numbers on the number line, is s + t = 0

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

LM

14 Feb 2019, 00:40

219

15

54,858

by: bumpbot

07 Nov 2024, 00:55

ER

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

805+ (Hard) | Percent and Interest Problems

805+ (Hard) | Percent and Interest Problems hide tags

Bunuel

05 Nov 2024, 01:45

5

2

1,503

by: stne

06 Nov 2024, 23:23

ER

Of the 58 drinks sold at Darlenes Beverage Shop, 21 are carbonated.

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

30 Oct 2024, 01:30

1

1,197

by: siddhantvarma

06 Nov 2024, 21:42

ER

At a farmers market, a florist sells only roses, and customers can buy

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

31 Oct 2024, 01:30

4

1

1,396

by: siddhantvarma

06 Nov 2024, 21:34

ER

If a, b, c are three numbers on the number line shown above

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

yogeshwar007

21 Jan 2013, 03:27

78

18

27,372

by: bumpbot

06 Nov 2024, 21:02

ER

If P is a positive integer, what is the reminder when P^2-1 is divided

705-805 (Hard) | Number Properties, Remainders

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

Turkish

27 May 2017, 06:31

10

3

4,088

by: bumpbot

06 Nov 2024, 08:28

ER

A shelf contains only books of poetry, short stories, and non-fiction.

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

12 Aug 2016, 08:49

6

2,961

by: PulkitMudgal

05 Nov 2024, 23:46

ER

If x and y are integers, is x an even integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

chetan2u

01 Feb 2017, 04:43

6

3

2,346

by: bumpbot

05 Nov 2024, 21:22

ER

A certain company sells only cars and trucks, and the average selling

655-705 (Hard) | Statistics and Sets Problems

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

BillyZ

21 Feb 2017, 18:23

8

3

3,553

by: bumpbot

05 Nov 2024, 16:18

ER

At a certain university, 75% of students have driver’s licences and 6

555-605 (Medium) | Percent and Interest Problems

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

MathRevolution

29 Nov 2017, 00:25

7

4

2,811

by: bumpbot

05 Nov 2024, 16:11

ER

If x, y, and z are three-digit positive integers, and if x = y + z

705-805 (Hard) | Arithmetic

705-805 (Hard) | Arithmetic hide tags

ChiranjeevSingh

06 May 2020, 00:53

5

2

3,631

by: bumpbot

05 Nov 2024, 13:25

ER

How many phone calls were received by Company C between 10:00 a.m. and

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

05 Nov 2024, 01:45

3

1

1,213

by: cdrectenwald

05 Nov 2024, 03:47

ER

If the length of side AB is 17, is triangle ABC a right tria

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

enigma123

05 Feb 2012, 04:13

29

14

17,315

by: bumpbot

05 Nov 2024, 02:30

ER

If x^2y^3 = 200, what is the value of xy ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

TheSituation

09 Apr 2010, 20:14

35

6

18,024

by: bumpbot

05 Nov 2024, 01:31

ER

The largest bonus that Felix can receive this year is equal to 20% of

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

31 Oct 2024, 01:30

1

917

by: swaftnishant

04 Nov 2024, 23:47

ER

Is the sum of two positive integers, x + y an odd value?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Rexus

26 Mar 2022, 18:50

9

4

2,244

by: bumpbot

04 Nov 2024, 10:34

ER

If x and y are non-zero integers, is x/yan integer?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

14 Apr 2021, 06:30

3

1,596

by: bumpbot

04 Nov 2024, 10:31

ER

Four friends, P, Q, R and S have $1400 with them. Does P have the high

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

06 Aug 2017, 00:59

7

4

2,652

by: anhvp56

04 Nov 2024, 08:53

Paul participates in an archery competition. He can attempt either one

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

siddhantvarma

03 Nov 2024, 03:03

6

4

1,454

by: gmatophobia

04 Nov 2024, 08:27

ER

What percentage of the agents at Best Be Safe insurance company sell

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

19 Dec 2019, 03:39

11

3

5,215

by: srik410

04 Nov 2024, 08:02

ER

In order to make the national tennis team, Matt

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

jogeshanand

23 Jun 2014, 22:02

88

16

13,286

by: bumpbot

04 Nov 2024, 07:21

ER

Jerry took a total of 10 tests, some in June and some in July last

505-555 (Easy) | Statistics and Sets Problems

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

Bunuel

04 Nov 2024, 01:45

4

1

1,257

by: cdrectenwald

04 Nov 2024, 06:23

ER

What is the ratio between A and B?

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

Bunuel

20 Jul 2016, 11:40

2

5,646

by: Cowtommi

02 Nov 2024, 12:52

ER

On Monday, Nicole spent $780 on fifty-two collectors comic books.

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

23 Oct 2024, 01:30

4

3

1,680

by: Bunuel

02 Nov 2024, 09:45

ER

Is abc/d an integer if a, b, c, and d are positive integers? (1) (a +

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Kritisood

19 Jul 2020, 08:29

16

10

5,955

by: bumpbot

01 Nov 2024, 23:26

ER

Is m + z > 0 (1) m - 3z > 0 (2) 4z - m > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

1, 2

kman

26 Apr 2018, 02:47

660

29

125,213

by: SomeOneUnique

01 Nov 2024, 18:30

ER

If x+2/y = 3, is xy an integer?

705-805 (Hard) | Algebra, Number Properties

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

mau5

19 May 2013, 07:50

13

10

4,878

by: bumpbot

01 Nov 2024, 09:26

Given a sequence: a1, a2, a3, ... a20, a21

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

nahid78

15 Aug 2022, 08:54

9

4

2,075

by: pierjoejoe

01 Nov 2024, 08:15

ER

Is x - x^2 > y - y^2 ? (1) x > y (2) x^2 > y^2

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

06 Dec 2019, 05:50

19

10

15,994

by: bumpbot

01 Nov 2024, 02:40

ER

In the quilting pattern shown above, a small square has its vertices o

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

AbdurRakib

01 Jul 2016, 05:43

126

14

25,237

by: bumpbot

31 Oct 2024, 09:52

ER

A real number N is of the form p/q, where p and q are both distinct po

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

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

amanvermagmat

21 Jul 2018, 10:54

5

3

2,085

by: bumpbot

31 Oct 2024, 03:55

ER

If p and q are positive, is p/q less than 1?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

nycgirl212

06 Jul 2016, 19:10

34

7

35,172

by: bumpbot

31 Oct 2024, 02:16

ER

Is 2x > 2y ? (1) x > y (2) 3x > 3y

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

06 Oct 2016, 01:21

33

14

20,419

by: bumpbot

31 Oct 2024, 01:16

ER

If M is a set of consecutive even integers, is 0 in set M ?

Sub 505 (Easy) | Sequences

Sub 505 (Easy) | Sequences hide tags

Bunuel

02 Aug 2018, 04:55

23

4

13,329

by: bumpbot

30 Oct 2024, 08:58

ER

Does 2x + 8 = 12 ? (1) 2x + 10 = 14 (2) 3x + 8 = 14

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

02 Aug 2018, 04:52

7

6

28,547

by: bumpbot

30 Oct 2024, 08:55

ER

Of the leopards at a certain zoo, 20% are both spotted and mature. If

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

18 Jun 2024, 01:30

4

5

2,255

by: pradeepbhuyan

30 Oct 2024, 07:45

ER

How many of the numbers x, y, and z are positive if each of

655-705 (Hard) | Arithmetic, Number Properties

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

Carcass

12 Jun 2013, 03:50

18

9

14,613

by: bumpbot

29 Oct 2024, 23:37

ER

Flasks M and N contain m and n liters of water respectively. Half of t

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

BrentGMATPrepNow

10 Jun 2019, 05:56

5

7

2,064

by: KanikaJain

29 Oct 2024, 23:32

ER

If x + y is an integer, is y an integer?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

BANON

01 Mar 2012, 08:39

21

10

15,257

by: bumpbot

29 Oct 2024, 23:23

ER

Is mn<10?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Srav

11 Oct 2015, 00:23

64

12

13,843

by: bumpbot

29 Oct 2024, 23:17

ER

What is the value of |x| x ? (1) x 0 (2) |x| > 0

505-555 (Easy) | Absolute Values

505-555 (Easy) | Absolute Values hide tags

Bunuel

06 Sep 2021, 01:30

16

7

3,533

by: bumpbot

29 Oct 2024, 22:48

ER

The cost, c and the revenue, r are related via the equation

555-605 (Medium) | Fractions and Ratios

555-605 (Medium) | Fractions and Ratios hide tags

MathRevolution

11 Jan 2018, 01:42

10

3

4,387

by: bumpbot

29 Oct 2024, 09:07

ER

Are all travelers who show symptoms of Kasparian-Yamanaka Syndrome

555-605 (Medium) | Non-Math Related

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

Bunuel

16 Jan 2024, 10:30

7

6

4,362

by: pierjoejoe

29 Oct 2024, 09:04

ER

Should a holistic approach be used to measure academic success?

Sub 505 (Easy) | Non-Math Related

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

guddo

14 Aug 2024, 07:08

3

2

3,216

by: pierjoejoe

29 Oct 2024, 08:39

ER

Is y an integer? (1) y^3 is an integer (2) 3y is an integer

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

subhajeet

10 Feb 2012, 05:21

40

6

18,838

by: bumpbot

29 Oct 2024, 00:57