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

178

15

79,004

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

857

24

188,690

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

488,205

by: bb

29 Aug 2025, 13:27

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

2,066

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

15,261

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

13,847

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

3,535

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

4,388

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

4,374

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

3,223

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

18,847

by: bumpbot

29 Oct 2024, 00:57

ER

If m is a positive integer, what is the remainder when 2^m is divided

605-655 (Medium) | Exponents, Remainders

605-655 (Medium) | Exponents, Remainders hide tags

Bunuel

24 Sep 2018, 06:07

6

3

3,565

by: bumpbot

28 Oct 2024, 20:44

ER

If x, y, and z are integers, what is the remainder when xyz is divided

605-655 (Medium) | Multiples and Factors, Remainders

605-655 (Medium) | Multiples and Factors, Remainders hide tags

Bunuel

18 Apr 2016, 01:17

11

5,773

by: bumpbot

28 Oct 2024, 20:40

ER

A jar contains 30 coins, of which 20 are nickels and 10 are dimes. If

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

01 Sep 2016, 03:55

3

4

5,587

by: bumpbot

28 Oct 2024, 04:32

ER

What is the greatest common divisor of the integers z and x?

655-705 (Hard) | Multiples and Factors

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

Bunuel

20 Apr 2022, 01:30

3

2

1,372

by: bumpbot

27 Oct 2024, 12:22

In the xy-coordinate plane, how many points of intersection with the

655-705 (Hard) | Coordinate Plane, Graphs and Illustrations

655-705 (Hard) | Coordinate Plane, Graphs and Illustrations hide tags

agathe1910

03 Aug 2023, 03:19

9

3

2,279

by: bumpbot

27 Oct 2024, 06:26

ER

What does the number x equal? (1) The quotient when the number is div

505-555 (Easy) | Remainders

505-555 (Easy) | Remainders hide tags

Bunuel

15 Jul 2019, 00:42

2

1,767

by: bumpbot

27 Oct 2024, 05:19

ER

What is the remainder when positive integer n is divided by 3?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

03 Sep 2022, 04:28

1

2

2,345

by: bumpbot

27 Oct 2024, 04:56

If a jar of candies is divided among 3 children, how many candies did

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

duahsolo

25 Oct 2016, 16:13

11

4

3,578

by: bumpbot

27 Oct 2024, 03:35

ER

What is the remainder when x^2 - y^2 is divided by 3?

Sub 505 (Easy) | Remainders

Sub 505 (Easy) | Remainders hide tags

manishuol

29 Apr 2013, 13:08

9

8

4,096

by: bumpbot

27 Oct 2024, 01:38

ER

In the xy-coordinate plane, line A is defined by the equation j*x-y=-7

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

Tornikea

01 Sep 2015, 08:30

162

12

15,590

by: bumpbot

27 Oct 2024, 01:26

ER

If x is a positive integer, is x even? (1) The remainder of (x^2-1)/4

Sub 505 (Easy) | Number Properties, Remainders

Sub 505 (Easy) | Number Properties, Remainders hide tags

Bunuel

11 Aug 2021, 06:00

5

3,185

by: bumpbot

27 Oct 2024, 01:23

ER

If x and y are integers, is x + y 1 divisible by 3?

Sub 505 (Easy) | Remainders

Sub 505 (Easy) | Remainders hide tags

Bunuel

11 May 2022, 09:00

6

5

2,101

by: bumpbot

27 Oct 2024, 01:09

ER

Is xy > x/y? (1) xy > 0 (2) y < 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

naaga

25 Feb 2011, 08:15

37

9

15,684

by: bumpbot

26 Oct 2024, 23:00

ER

In the coordinate plane, circle C has radius r and its center is at po

705-805 (Hard) | Coordinate Plane, Geometry

705-805 (Hard) | Coordinate Plane, Geometry hide tags

rakshitsood21

04 Sep 2020, 11:36

15

4

3,649

by: bumpbot

26 Oct 2024, 22:28

ER

If 243^x*463^y = n, where x and y are positive integers

655-705 (Hard) | Exponents

655-705 (Hard) | Exponents hide tags

anilnandyala

02 Oct 2010, 04:44

148

7

23,437

by: bumpbot

26 Oct 2024, 08:39

ER

In order for a nursery to meet the conditions of its insurance there

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

25 Oct 2024, 01:30

4

3

1,451

by: tgsankar10

26 Oct 2024, 02:12

If x and y are non zero numbers less than 1 is (y^4 - x^4)>(y^3 - x^5)

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

a70

14 Aug 2018, 04:16

54

11

8,187

by: bumpbot

26 Oct 2024, 01:26

ER

The new Moulant Diet requires adherents to limit their daily intake of

805+ (Hard) | Fractions and Ratios, Word Problems

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

Bunuel

25 Jan 2018, 23:57

5

4

2,167

by: m7runner

26 Oct 2024, 01:12

ER

On Halloween, Céilidh distributed candy to the trick-or-treaters who

705-805 (Hard) | Fractions and Ratios

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

N22J

25 Oct 2024, 06:38

11

7

3,116

by: Armaan209

25 Oct 2024, 23:49

ER

If during a sale, a pet store sells twice as many dogs as it sells cat

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

24 Oct 2024, 00:26

2

1

871

by: ParthM011

25 Oct 2024, 07:07

ER

A workshop runs on Wednesday, Thursday and Friday.

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

25 Oct 2024, 01:30

3

1

1,087

by: Nitish1103

25 Oct 2024, 05:28

ER

If a, b, c, and d are all positive integers, is c divisible by a/d?

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

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

mniyer

22 Dec 2013, 11:02

22

11

4,723

by: bumpbot

24 Oct 2024, 20:47

ER

Is w an integer? (1) 3w is an odd number. (2) 2w is an even number.

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

10 May 2020, 05:30

9

6

8,445

by: bumpbot

24 Oct 2024, 19:40

ER

If X = 373p * 426q, where p and q are positive integers, what is the u

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Kritisood

13 Apr 2020, 08:08

12

2

2,772

by: bumpbot

24 Oct 2024, 05:59

ER

On a particular day, Mary Inklewood made a total of 149 shillings from

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

25 Jul 2024, 01:30

10

3

2,063

by: agrotechpepper

23 Oct 2024, 11:43

ER

What is the mode of the list above?

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

20 Aug 2018, 04:35

28

12

5,616

by: bumpbot

23 Oct 2024, 11:13

ER

If x is a positive integer, what is the number of different positive

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

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

Bunuel

16 Dec 2019, 02:39

10

5

4,299

by: bumpbot

23 Oct 2024, 11:09

ER

What is the value of k^2 + k? (1) The value of k + 1 is 1. (2) The va

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

03 Mar 2020, 03:54

9

3

7,950

by: bumpbot

23 Oct 2024, 10:52

ER

What is the average of ten numbers? (1) Nine of the numbers sum to 45

Sub 505 (Easy) | Arithmetic

Sub 505 (Easy) | Arithmetic hide tags

Bunuel

10 Oct 2019, 02:09

6

3

3,898

by: bumpbot

23 Oct 2024, 10:24

ER

Two cars, A and B, each traveled a distance of 200 miles. Did car A us

Sub 505 (Easy) | Distance and Speed Problems

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

Bunuel

15 Oct 2019, 23:15

3

4

2,596

by: bumpbot

23 Oct 2024, 10:23

ER

Each day, a vendor rents a booth. She is charged both a flat fee and 5

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

01 Jan 2021, 09:00

3

2

1,864

by: bumpbot

23 Oct 2024, 10:22

ER

If a and b are integers, is b even? (1) 5a + 6b is even. (2) 5a + 3b

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

07 Apr 2021, 04:00

6

3

2,547

by: amateynil

23 Oct 2024, 10:02

ER

Triangle ABC is inscribed in a rectangle ABEF forming two right triang

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

EgmatQuantExpert

28 Feb 2017, 03:58

63

15

7,353

by: bumpbot

23 Oct 2024, 05:52

ER

Is triangle ABC isosceles?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

anilnandyala

09 Dec 2010, 07:22

97

11

11,585

by: bumpbot

23 Oct 2024, 04:55

ER

In the figure above, is quadrilateral PQRS a parallelogram?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

gluon

21 Jul 2015, 03:04

54

10

24,384

by: bumpbot

23 Oct 2024, 04:52

ER

Is quadrilateral ABCD a parallelogram? (1) AC = BD

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

DHAR

07 Mar 2023, 08:12

25

12

8,358

by: bumpbot

23 Oct 2024, 04:49

ER

Is quadrilateral ABCD a parallelogram ?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

innocous

25 Aug 2013, 10:58

96

18

13,077

by: bumpbot

23 Oct 2024, 04:47

ER

What is the average of x and |y| ?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

gmatJP

22 Jun 2010, 02:44

38

6

18,692

by: bumpbot

23 Oct 2024, 03:54

ER

In isosceles triangle RST what is the measure of angle R?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

gmatgg

08 Mar 2010, 22:46

214

15

106,363

by: bumpbot

23 Oct 2024, 03:48

ER

Is x to the right of -5 on the number line?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

rraman

11 Mar 2019, 05:57

14

4

11,169

by: bumpbot

23 Oct 2024, 03:45

ER

Is x < y? (1) x^(1/2) < y (2) x^2 < y

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

sahil5695

01 Oct 2017, 13:13

10

6

3,167

by: bumpbot

23 Oct 2024, 01:40

ER

If Q is a quadrilateral, is Q a rectangle?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

hardnstrong

11 Jul 2019, 05:17

15

8

7,407

by: bumpbot

22 Oct 2024, 23:31