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

78,657

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,480

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

487,874

by: bb

29 Aug 2025, 13:27

ER

Point Q lies in the interior of a particular circle.

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

WoundedTiger

13 Jul 2014, 12:09

45

16

16,208

by: bumpbot

05 Aug 2023, 10:14

ER

If n is a positive integer, is n odd?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

14 Jul 2014, 03:38

18

8

15,904

by: HarshaBujji

05 Jan 2024, 07:37

ER

If xy0, what is the value of (2x + y)/(x - 2y)?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

manojISB

14 Jul 2014, 08:58

19

6

8,854

by: bumpbot

28 Dec 2023, 10:06

ER

James and Andrea take a trip in Andrea's car.

Poor Quality

Poor Quality hide tags

Gnpth

14 Jul 2014, 09:55

7

5

6,896

by: Kurtosis

06 Jun 2016, 04:44

ER

If a pencil is selected at random from a desk drawer, what

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

sunita123

14 Jul 2014, 14:23

26

11

11,669

by: bumpbot

13 Apr 2026, 11:32

ER

If s is an integer between 0 and 10, is t less than the aver

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

mshrek

15 Jul 2014, 09:03

18

8

6,303

by: bumpbot

09 Nov 2022, 01:15

ER

Is x + y > 0 ? (1) x - y > 0 (2) x^2 - y^2 > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

sunita123

14 Oct 2023, 00:44

34

10

14,568

by: sujoykrdatta

14 Apr 2025, 09:25

ER

30 people in total attended an office party for a

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

mvivekc

15 Jul 2014, 23:42

49

16

14,490

by: bumpbot

27 Jul 2025, 04:50

ER

Ann and Pierre purchased $37 worth of French fries.

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Gnpth

15 Jul 2014, 23:45

15

6

5,325

by: bumpbot

18 Apr 2026, 11:54

ER

If the average weight of the chickens on Farm One is 12

Sub 505 (Easy) | Statistics and Sets Problems

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

Gnpth

15 Jul 2014, 23:58

10

8

6,667

by: bumpbot

19 Jan 2023, 03:35

ER

A sales associate earns a commission of 8% on her first $10,

Sub 505 (Easy) | Percent and Interest Problems

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

Gnpth

16 Jul 2014, 00:04

12

5

15,022

by: Bunuel

15 Jan 2024, 14:28

ER

If xy 0, is x^y > 0 ?

655-705 (Hard) | Exponents +2 tags

655-705 (Hard) | Exponents, Inequalities, Roots hide tags

Bunuel

20 Jul 2014, 11:23

63

11

11,910

by: bumpbot

16 Sep 2025, 06:24

ER

A thoroughly blended biscuit mix includes only flour and bak

Sub 505 (Easy) | Mixture Problems

Sub 505 (Easy) | Mixture Problems hide tags

Gmatbattle

21 Jul 2014, 08:30

18

4

18,190

by: bumpbot

28 Nov 2025, 10:10

ER

Maria had twice as many suits in the year 1995 as she did

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Gnpth

21 Jul 2014, 21:57

4

4,171

by: Helium

28 Sep 2018, 18:30

ER

If a, b, and c are positive and a =b/c^1/2, what is the

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Gnpth

22 Jul 2014, 03:10

1

2

2,692

by: Bunuel

22 Jul 2014, 03:13

ER

A repunit is a positive integer that contains only the digit

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

WoundedTiger

22 Jul 2014, 02:52

53

4

11,975

by: bumpbot

06 Dec 2024, 01:41

ER

If p and q are nonzero numbers, and p is not equal to q, in

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

goodyear2013

22 Jul 2014, 08:15

41

8

22,775

by: bumpbot

18 Sep 2023, 06:57

ER

What is the perimeter of the triangle in the figure above?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

WoundedTiger

23 Jul 2014, 02:45

41

11

12,820

by: bumpbot

03 Oct 2022, 06:56

ER

If 3a + 2b – 4 = a – b, what is the value of b ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Gnpth

23 Jul 2014, 10:48

4

6

9,295

by: bumpbot

10 Jun 2024, 22:01

ER

If a and b are integers, what is the value of b ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Gnpth

24 Jul 2014, 05:36

5

2

3,515

by: bumpbot

26 Oct 2019, 22:33

ER

Is integer y is divisible by 24?

505-555 (Easy) | Multiples and Factors

505-555 (Easy) | Multiples and Factors hide tags

Gnpth

24 Jul 2014, 07:54

10

3

6,525

by: kalaits

26 Sep 2014, 14:04

ER

What is 35 percent of a^b?

Sub 505 (Easy) | Percent and Interest Problems

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

goodyear2013

24 Jul 2014, 12:30

10

4

15,477

by: bumpbot

31 Dec 2022, 02:18

ER

If f and g are both positive integers greater than 1

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

Gnpth

25 Jul 2014, 11:07

1

3

7,487

by: Bunuel

26 Jul 2014, 02:05

ER

If h and k are both positive integers, are both roots of the equation

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

1, 2

hubahuba

25 Jul 2014, 16:53

92

24

16,074

by: bumpbot

10 Mar 2025, 03:18

ER

What is the value of x?

555-605 (Medium) | Algebra, Exponents

555-605 (Medium) | Algebra, Exponents hide tags

Reni

26 Jul 2014, 10:13

3

2

2,453

by: bumpbot

29 Mar 2017, 06:24

ER

Machine M and Machine N working alone at their constant rate

705-805 (Hard) | Work and Rate Problems

705-805 (Hard) | Work and Rate Problems hide tags

Reni

26 Jul 2014, 10:07

188

14

19,555

by: bumpbot

02 Nov 2025, 11:06

ER

A store sells erasers for 0.23$ per piece and pencil for 0.1

555-605 (Medium) | Algebra, Word Problems

555-605 (Medium) | Algebra, Word Problems hide tags

honchos

26 Jul 2014, 10:36

48

9

14,887

by: bumpbot

15 Jun 2025, 08:08

ER

Certain word is written on a paper. What is the number of ar

605-655 (Medium) | Combinations

605-655 (Medium) | Combinations hide tags

Bunuel

26 Jul 2014, 16:12

82

10

18,876

by: bumpbot

09 Nov 2025, 23:41

ER

In the former Soviet Union, rubles came in denominations of

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Vijayeta

27 Jul 2014, 07:50

45

6

7,658

by: bumpbot

10 May 2024, 07:57

ER

A sports team played 100 games last season. Did this team

655-705 (Hard) | Min-Max Problems, Overlapping Sets

655-705 (Hard) | Min-Max Problems, Overlapping Sets hide tags

WoundedTiger

27 Jul 2014, 11:05

142

13

22,229

by: bumpbot

02 Oct 2025, 06:36

ER

If x^2 < x and x is written as a terminating decimal,does x

805+ (Hard) | Fractions and Ratios

805+ (Hard) | Fractions and Ratios hide tags

WoundedTiger

27 Jul 2014, 11:54

198

17

22,995

by: bumpbot

17 Oct 2024, 17:25

ER

A certain bag contains only red balls, blue balls, and green

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

jadon

27 Jul 2014, 16:24

34

7

37,370

by: bumpbot

18 Mar 2025, 21:32

ER

Is |x| < 1 ? (1) x/|x| < x (2) x/|x| < 1

805+ (Hard) | Absolute Values, Inequalities

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

Reni

13 May 2021, 08:48

167

11

16,251

by: bumpbot

16 Dec 2024, 07:02

ER

What is the average of a, b and c?

605-655 (Medium) | Statistics and Sets Problems

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

suk1234

31 Jul 2014, 14:50

17

6

36,311

by: Bunuel

03 Oct 2025, 07:42

ER

A certain number of marbles are to be removed from a box con

555-605 (Medium) | Combinations +2 tags

555-605 (Medium) | Combinations, Min-Max Problems, Word Problems hide tags

chetan86

20 Oct 2024, 06:54

134

10

23,754

by: bumpbot

05 Nov 2025, 12:56

ER

Is a triangle with angles x, y and z isosceles?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

pratikshr

01 Aug 2014, 07:34

8

5

4,164

by: yuvrajmehra

03 Jul 2022, 05:52

ER

What is the area of the trapezoid shown?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

PathFinder007

01 Aug 2014, 08:54

85

12

28,437

by: goaltop30mba

03 Jan 2021, 19:32

ER

What is the value of a?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

sandeepk123

03 Aug 2014, 01:18

17

5

5,042

by: ManifestDreamMBA

06 Apr 2025, 09:19

ER

A charity planned to distribute 'n' pens (n<300) to students

Poor Quality

Poor Quality hide tags

alphonsa

02 Aug 2014, 01:31

2

2,168

by: IanStewart

23 Jun 2015, 13:32

ER

A set has a series of numbers such as a that

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

alphonsa

02 Aug 2014, 01:42

18

6

4,435

by: bumpbot

25 Nov 2025, 00:09

ER

If a_n= 0.5* a_n+1, what is the value of a_7

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

alphonsa

02 Aug 2014, 01:56

19

2

4,116

by: bumpbot

05 Apr 2026, 10:46

ER

Is x > = y ?

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

registerincog

02 Aug 2014, 11:26

8

2

3,070

by: bumpbot

20 Jan 2021, 20:04

ER

What is the radius of the circle shown?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

PathFinder007

02 Aug 2014, 10:24

19

10

13,711

by: bumpbot

05 Jan 2022, 19:50

ER

In the correctly-worked multiplication problem above, each

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

WoundedTiger

02 Aug 2014, 22:42

124

7

20,676

by: bumpbot

22 Feb 2025, 19:37

ER

If the standard deviation of Set Y is 4, what are the

505-555 (Easy) | Statistics and Sets Problems

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

oss198

03 Aug 2014, 15:52

32

6

11,528

by: bumpbot

05 Dec 2025, 02:19

ER

If abc 0, is a < b < c ? (1) 1/c < 1/b < 1/a (2) c > a

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

ashutoshbarawkar

07 Aug 2022, 09:36

79

19

22,004

by: hdixit

19 Sep 2023, 09:34

ER

If W is divisible by 7, is Z even or odd?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

abilash10

12 Aug 2014, 04:46

7

3,153

by: Bunuel

12 Aug 2014, 04:47

ER

A Wagstaff prime is a prime number p such that p =

705-805 (Hard) | Algebra, Exponents

705-805 (Hard) | Algebra, Exponents hide tags

pratikshr

12 Aug 2014, 06:03

20

17

5,004

by: cledgard

07 Sep 2017, 14:54

ER

Is y < z ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Gnpth

07 Aug 2014, 11:37

9

11

4,118

by: bumpbot

05 Jul 2023, 05:16

ER

From a group of M employees, N will be selected, at random,

705-805 (Hard) | Combinations, Probability

705-805 (Hard) | Combinations, Probability hide tags

mikemcgarry

07 Aug 2014, 14:58

163

16

17,851

by: Aabhash777

31 Jul 2025, 04:11