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

78,897

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,631

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

488,105

by: bb

29 Aug 2025, 13:27

ER

If a and b are greater than 0, a is what percent greater than b?

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

coreyander

28 Jun 2020, 12:21

3

4

2,597

by: chetan2u

28 Jun 2020, 23:24

ER

S is a set of integers such that I. If x is in S, then x is in S.

555-605 (Medium) | Arithmetic, Statistics and Sets Problems

555-605 (Medium) | Arithmetic, Statistics and Sets Problems hide tags

conty911

20 Sep 2024, 00:34

17

9

7,873

by: Bunuel

28 Feb 2026, 12:10

ER

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

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

1, 2

conty911

18 Sep 2012, 09:16

930

25

123,925

by: bumpbot

22 Nov 2025, 07:44

ER

Is J divisible by 24?

555-605 (Medium) | Multiples and Factors

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

conty911

29 Aug 2012, 02:32

15

3

5,674

by: bumpbot

15 Oct 2022, 07:18

ER

If a and n are integers and n > 1, is n odd?

805+ (Hard) | Exponents, Number Properties

805+ (Hard) | Exponents, Number Properties hide tags

conty911

23 Aug 2012, 01:17

126

13

28,005

by: adityaganjoo

27 Jun 2021, 05:35

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Is n^2 + 2n an integer? (1) n^3 + 3n is an integer. (2) 2n

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Poor Quality hide tags

conty911

26 Apr 2012, 03:05

4

19

5,208

by: stne

13 Feb 2014, 07:15

ER

Let denote a mathematical operation. Is it true that x y

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Poor Quality hide tags

conty911

25 Apr 2012, 22:35

4

3

6,556

by: Bunuel

30 Oct 2013, 07:59

ER

If ab ≠ 0; is a/b > 0 ? (1) |a*b| = a*b (2) |a| + |b| = |a + b |

605-655 (Medium) | Absolute Values, Inequalities

605-655 (Medium) | Absolute Values, Inequalities hide tags

contactakanksha

03 Mar 2020, 05:37

10

5

3,463

by: Bunuel

14 Aug 2025, 06:41

For all values of x, x^2 - rx - s = (x - t)^2, where r, s and t are co

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

contactakanksha

03 Mar 2020, 06:46

5

2

1,856

by: Oppenheimer1945

15 Jan 2024, 08:24

ER

What is the remainder when the integer q is divided by 5? (1) q is di

505-555 (Easy) | Remainders

505-555 (Easy) | Remainders hide tags

contactakanksha

04 Mar 2020, 07:02

1

1,724

by: Bunuel

04 Mar 2020, 07:02

ER

If x > 1, what is the value of integer x? (1) The product of x and an

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

contactakanksha

04 Mar 2020, 06:42

3

2

1,186

by: Bunuel

04 Mar 2020, 06:49

Is x > 0? (1) |x|/|x - 1| < 1 (2) x^2 < x

655-705 (Hard) | Absolute Values, Inequalities

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

contactakanksha

03 Mar 2020, 06:49

5

1

1,429

by: ArunSharma12

03 Mar 2020, 10:51

ER

If w + x + y = 42, what is the value of wxy?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

CONSULTINGDREAMER

29 Aug 2015, 01:52

7

11

3,943

by: bumpbot

13 Jun 2024, 20:08

ER

In a race, an overtake between two participants refers to the event

655-705 (Hard) | Non-Math Related

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

consistentprep

10 Jan 2026, 01:35

29

10

1,908

by: Stella5200

22 Feb 2026, 04:03

ER

If each of the two digits X and Y is distinct

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

ConnectTheDots

28 Aug 2012, 06:56

36

9

9,355

by: bumpbot

23 Apr 2025, 07:12

ER

What is the remainder when X is divided by 3, where 3 is not

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

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

ConnectTheDots

10 Apr 2014, 00:05

5

6

3,745

by: samarpan.g28

30 Jul 2024, 06:58

ER

A road roller is used to press a ground of area 2200 sq.

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Poor Quality hide tags

confusedmind

22 Sep 2012, 03:30

14

9

7,486

by: hdwnkr

17 Dec 2015, 12:14

ER

If $10,000 invested for one year at x percent simple annual interest y

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

Confide

16 Feb 2024, 09:58

4

2

3,469

by: Fucio

14 Apr 2026, 07:48

Five friends received their scores on a quiz. What was the standard de

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

Confide

16 Feb 2024, 19:11

4

2

2,052

by: bumpbot

13 Jan 2026, 12:43

ER

In the xy-plane, is the slope of the line containing the points (m, n)

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Confide

04 Feb 2024, 14:12

1

1,867

by: MartyMurray

04 Feb 2024, 14:38

ER

R and S are sets consisting of integers. Is every integer that is in

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

Confide

04 Feb 2024, 13:52

1

1,131

by: MartyMurray

04 Feb 2024, 14:25

ER

In the xy-plane, is the slope of line k positive? (1) The y-intercept

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

Confide

19 Jan 2024, 19:00

6

8

2,111

by: unraveled

23 Jan 2024, 08:45

ER

Last month Arturo received 6 paychecks. What was the average

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

Confide

19 Jan 2024, 19:04

5

1,483

by: Confide

20 Jan 2024, 13:27

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

23,792

by: totaltestprepNick

24 Feb 2026, 13:32

ER

A certain company divides its total advertising budget into

505-555 (Easy) | Fractions and Ratios

505-555 (Easy) | Fractions and Ratios hide tags

combres

17 Sep 2007, 07:26

45

8

28,452

by: bumpbot

04 Feb 2025, 19:32

ER

Is z > 0? (1) (z + 1)(z)(z - 1) < 0 (2) |z| < 1

655-705 (Hard) | Absolute Values, Inequalities

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

1, 2

ColdSushi

18 Mar 2015, 20:31

93

23

14,125

by: bumpbot

07 Aug 2025, 03:39

ER

In the figure above, three segments are drawn to connect

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

coelholds

29 Jul 2015, 03:15

61

18

12,767

by: JDLaw

20 Oct 2022, 03:02

ER

Is (q - p) < 0?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Codebug4it

28 May 2020, 16:57

5

6

2,876

by: bumpbot

09 Dec 2023, 17:11

ER

Is x - y < 0 ? (1) 9y - 6x > 0 (2) xy > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Codebug4it

07 Jun 2020, 02:09

5

2,578

by: Mo2men

07 Jun 2020, 02:37

ER

What is the remainder when the positive integer n is divided by 6?

Sub 505 (Easy) | Remainders

Sub 505 (Easy) | Remainders hide tags

co801dw

14 Oct 2012, 04:46

84

12

47,675

by: bumpbot

30 Dec 2025, 23:24

ER

Is |x + 1| + |x - 2| < 4 ?

705-805 (Hard) | Absolute Values, Inequalities

705-805 (Hard) | Absolute Values, Inequalities hide tags

cnsih1532

16 May 2020, 06:46

27

6

4,909

by: bumpbot

06 Aug 2025, 06:24

ER

If the combined number of men and women who attended a certain

505-555 (Easy) | Fractions and Ratios

505-555 (Easy) | Fractions and Ratios hide tags

cnsih1532

03 Feb 2020, 04:45

3

5

2,501

by: QuantMadeEasy

03 Feb 2020, 23:30

ER

If r > 0 and s > 0, is r/s < s/r? (1) r/(3s) = 1/4 (2) s = r + 4

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

cmugeria

17 Aug 2010, 09:02

158

14

48,765

by: bumpbot

30 Jun 2025, 08:52

ER

Do more than 50% of the children in a certain group have

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

cmugeria

10 Sep 2010, 15:29

30

7

14,626

by: bumpbot

14 Sep 2024, 23:15

ER

Is 7 < n^(1/2) < 8? (1) n > 50 (2) n < 60

Sub 505 (Easy) | Inequalities, Roots

Sub 505 (Easy) | Inequalities, Roots hide tags

cmugeria

17 Aug 2010, 08:45

15

10

11,908

by: bumpbot

18 Jun 2024, 02:59

ER

If x is a positive integer, is x divisible by 15?

705-805 (Hard) | Multiples and Factors

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

CMcAboy

03 Apr 2011, 18:50

7

13

8,139

by: santorasantu

05 Dec 2014, 12:04

ER

Jeff drove two laps around a track. Was his average speed less than 60

805+ (Hard) | Distance and Speed Problems

805+ (Hard) | Distance and Speed Problems hide tags

clueless20

05 Jul 2020, 03:00

149

19

16,619

by: bumpbot

08 Dec 2025, 06:19

ER

On a certain sight-seeing tour, the ratio of the number of women to th

555-605 (Medium) | Fractions and Ratios, Word Problems

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

clubzzang

18 Jul 2019, 01:47

489

17

94,211

by: Bunuel

03 Jan 2026, 05:18

ER

If x and y are positive integers, what is the remainder when xy is div

655-705 (Hard) | Number Properties, Remainders

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

clipea12

29 Sep 2014, 23:21

88

13

17,942

by: bumpbot

02 Feb 2025, 01:38

ER

If x, y, and z are positive integers, is x - y - z positive ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

clipea12

14 Sep 2014, 23:42

23

9

5,882

by: bumpbot

03 Dec 2023, 15:21

ER

What is the value of positive integer x? (1) x^4 < 1,000 (2) 2x < x^2

605-655 (Medium) | Exponents, Inequalities

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

clipea12

15 Sep 2014, 00:20

12

5

4,990

by: bumpbot

23 Jan 2023, 05:13

ER

The average number of students per class at School X is 25 and the ave

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

CLIMBTHELADDER

10 Jan 2019, 03:06

37

5

9,370

by: bumpbot

25 Jul 2025, 23:28

ER

On the number line above, is the product of w, x, y and z negative?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

CLIMBTHELADDER

25 Feb 2016, 08:45

39

9

21,165

by: bumpbot

31 May 2024, 04:53

ER

Is the cost of an Organ more than the cost of a Flute ?

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

cleetus

27 Jan 2014, 06:28

15

12

4,517

by: bumpbot

12 Dec 2025, 03:45

ER

What is the remainder of n/15?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

cjcj

24 Sep 2015, 20:57

26

7

5,111

by: adityasuresh

28 Dec 2022, 03:08

ER

Many different groups apply to march in the annual GLBTGQ, etc. parade

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Poor Quality hide tags

chuchu1957

21 Jan 2015, 04:21

18

12

5,309

by: rekhabishop

18 Jul 2017, 05:12

ER

Five consecutive positive integers are chosen at random

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

christykarunya

19 Sep 2013, 05:06

139

11

21,347

by: bumpbot

09 Sep 2025, 07:31

ER

Does the curve (x-a)^2 + (y-b)^2=16 intersect the y-axis ?

805+ (Hard) | Coordinate Plane, Geometry

805+ (Hard) | Coordinate Plane, Geometry hide tags

christoph

26 Nov 2018, 12:09

239

16

25,146

by: bumpbot

17 Jun 2025, 12:37

ER

If set N contains only consecutive positive integers, what

555-605 (Medium) | Statistics and Sets Problems

555-605 (Medium) | Statistics and Sets Problems hide tags

christoph

12 Oct 2013, 17:28

21

12

7,078

by: bumpbot

11 Mar 2025, 20:27

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

3,632

by: bumpbot

05 Nov 2024, 13:25