GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

179

15

79,742

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

858

24

188,981

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

488,682

by: bb

29 Aug 2025, 13:27

ER

Is x y? (1) x(x - y) = 5 (2) x - y < 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

goodyear2013

21 Jan 2014, 00:45

6

5

3,805

by: bumpbot

30 Sep 2020, 11:30

ER

What is the remainder when a positive integer w is divided by 2?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

25 Oct 2016, 23:37

1

5

2,613

by: GMATinsight

02 Oct 2020, 00:20

ER

If x is an integer, is x even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

RichaKhanna

07 Jul 2015, 00:46

1

5

4,351

by: bumpbot

02 Oct 2020, 03:05

ER

In the figure above, what is the value of b?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

03 Jan 2016, 11:46

10

5

7,184

by: bumpbot

02 Oct 2020, 03:07

ER

What is the value of x^2yz + xy^2z + xyz^2 ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

rraggio

15 Sep 2010, 07:38

5

12,783

by: bumpbot

02 Oct 2020, 03:16

ER

What is the value of integer A ? (1) n = nA (2) 1^n ≠ n

655-705 (Hard) | Algebra, Exponents

655-705 (Hard) | Algebra, Exponents hide tags

Bunuel

02 Oct 2020, 03:00

12

5

2,140

by: Archit3110

02 Oct 2020, 08:08

ER

How many of the girls in a group of 200 children have an average score

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

23 Jun 2016, 02:07

1

5

3,333

by: bumpbot

03 Oct 2020, 22:21

ER

If n and r are positive integers and r is the remainder when 27 is div

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

03 Oct 2020, 13:24

2

5

2,075

by: MathRevolution

04 Oct 2020, 12:34

ER

If x ≠ y, is y - x > 1/(x-y)?

605-655 (Medium) | Algebra, Inequalities

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

CAMANISHPARMAR

15 Jun 2019, 07:12

5

3,357

by: bumpbot

04 Oct 2020, 23:38

ER

x is a positive integer such as 0<x<22. Is x a perfect squar

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

SaidNassar1991

05 Oct 2020, 13:41

6

5

1,647

by: TestPrepUnlimited

06 Oct 2020, 17:02

ER

Is X an even integer ?

Poor Quality

Poor Quality hide tags

AnisMURR

12 Oct 2020, 10:58

4

5

1,214

by: VoltAmpere

15 Oct 2020, 17:49

ER

If y = (5-x)^1/2 where x and y are integers, what is the

655-705 (Hard) | Remainders, Roots

655-705 (Hard) | Remainders, Roots hide tags

MacFauz

20 Jul 2014, 09:49

20

5

6,367

by: bumpbot

16 Oct 2020, 11:31

ER

Is xy + xy < xy ? (1) x^2/y < 0 (2) x^9*(y^3)^3 < (x^2)^4*y^8

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

nitin1negi

07 Feb 2021, 04:29

16

5

5,597

by: bumpbot

23 Oct 2020, 02:00

ER

What is the value of x?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

audiogal101

29 Nov 2013, 04:06

3

5

2,940

by: bumpbot

28 Oct 2020, 09:07

ER

Is the product of positive integers x and y a prime number?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

04 Nov 2020, 05:00

4

5

2,030

by: Basshead

05 Nov 2020, 16:39

ER

If the sequence S has 100 terms, what is the 7th term of S?

Sub 505 (Easy) | Sequences

Sub 505 (Easy) | Sequences hide tags

Bunuel

15 Aug 2019, 00:55

2

5

4,918

by: bumpbot

06 Nov 2020, 10:39

ER

If x and y are positive integers and x/y = 2, what is the value of x?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

07 May 2019, 00:58

5

3,283

by: MHIKER

10 Nov 2020, 08:08

ER

ABCD is a quadrilateral as shown in the figure above. Find the area of

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

arabella

25 Nov 2018, 11:36

7

5

6,609

by: hkkat

13 Nov 2020, 23:29

ER

m and n are positive integers. What is the value of m?

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

09 Mar 2016, 12:23

13

5

4,061

by: bumpbot

18 Nov 2020, 05:20

ER

In the triangle above, what is the measure of Angle YZX?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

14 May 2020, 07:18

4

5

4,462

by: SiddharthR

19 Nov 2020, 14:15

ER

Dodgers stadium, which is rectangular in shape, currently has one par

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

20 Nov 2020, 01:15

8

5

2,179

by: Pallavi2020

21 Nov 2020, 11:22

ER

If m and n are positive integers such that m + n = 9, what is the valu

655-705 (Hard) | Algebra, Inequalities

655-705 (Hard) | Algebra, Inequalities hide tags

Bunuel

03 Apr 2018, 21:31

10

5

3,369

by: Basshead

23 Nov 2020, 19:11

ER

Are x and y consecutive integers? (1) x + y = 15 (2) x – y = 3

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

09 Nov 2020, 10:15

1

5

1,672

by: bond001

02 Dec 2020, 03:40

ER

What is the remainder when integer n is divided by 10?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

01 May 2019, 02:14

3

5

3,366

by: MHIKER

07 Dec 2020, 14:32

ER

What is x? (1) |2x| = 6x 4 (2) |x| < 2

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Poor Quality hide tags

WarriorWithin

11 Dec 2020, 04:37

3

5

1,794

by: wali786

11 Dec 2020, 13:08

ER

What is the value of z? (1) The lengths of the sides of a triangle AB

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

15 Dec 2020, 01:15

5

1,948

by: akadiyan

15 Dec 2020, 14:18

ER

Machine J runs at a constant rate and produces a lot consisting of 300

Sub 505 (Easy) | Work and Rate Problems

Sub 505 (Easy) | Work and Rate Problems hide tags

Bunuel

18 Apr 2017, 03:48

3

5

2,717

by: CEdward

21 Dec 2020, 23:55

ER

If k is a nonzero integer, is (47-k)/k an integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Hoozan

19 Dec 2020, 08:33

1

5

1,970

by: TestPrepUnlimited

22 Dec 2020, 22:28

ER

Is the prime number q equal to 29 ?

805+ (Hard) | Multiples and Factors, Number Properties

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

Bunuel

25 Dec 2017, 05:42

11

5

2,899

by: Bibah

23 Dec 2020, 10:43

ER

If x and y are positive integers, is the following cube root

Poor Quality

Poor Quality hide tags

solarzj

09 Jun 2012, 07:22

27

5

10,084

by: harshilNori

24 Dec 2020, 00:09

ER

If m and n are positive integers, what is the units digit of 556^17n +

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

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

Bunuel

23 Dec 2020, 01:15

4

5

1,853

by: rocky620

24 Dec 2020, 06:45

ER

Is the slope of Line L < 0? 1) Line L does NOT pass through Quadrant

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

GMATinsight

22 Jun 2020, 01:54

5

2,132

by: Archit3110

29 Dec 2020, 03:59

ER

If a > 0, b > 0, and 2c = (a/b)^(1/2), what is the value of b?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

13 Dec 2015, 05:22

5

5,173

by: bumpbot

29 Dec 2020, 05:31

ER

Team X won 40 basketball games. What percent of its basketball games d

Sub 505 (Easy) | Percent and Interest Problems, Word Problems

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

Bunuel

23 Oct 2019, 02:32

5

3,490

by: bumpbot

29 Dec 2020, 05:33

ER

If triangle ABC isosceles, what is its perimeter?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

30 Dec 2020, 10:36

5

1,436

by: MHIKER

31 Dec 2020, 09:58

ER

Is x divisible by 12? (1) x is divisible by 27 (2) x is divisible by 6

555-605 (Medium) | Multiples and Factors

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

Bunuel

25 Jul 2018, 03:32

10

5

8,945

by: HARRY113

01 Jan 2021, 18:31

ER

Does ax = 5 x? (1) ax = 5 (2) x = 1

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

07 Jan 2021, 01:15

10

5

2,049

by: GCMEMBER

08 Jan 2021, 00:53

ER

What is a% of b?

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

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

EMPOWERgmatRichC

07 Oct 2019, 19:59

8

5

3,257

by: MHIKER

08 Jan 2021, 09:17

ER

Each day, Sergio feeds his cat a 500-gram mixture of Brand X and Brand

555-605 (Medium) | Mixture Problems

555-605 (Medium) | Mixture Problems hide tags

Bunuel

13 Apr 2018, 01:41

4

5

3,929

by: CEdward

08 Jan 2021, 22:24

ER

Is z an odd integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

29 Dec 2014, 08:19

5

4,288

by: bumpbot

11 Jan 2021, 11:36

ER

If both x and y are positive integers less than 90 and greater than 10

555-605 (Medium) | Multiples and Factors

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

Bunuel

31 May 2016, 05:43

7

5

2,741

by: bumpbot

12 Jan 2021, 01:05

ER

What is the value of the positive integer k?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

MathRevolution

15 Feb 2018, 04:39

4

5

3,243

by: bumpbot

14 Jan 2021, 21:23

ER

What is the value of x?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

13 Mar 2018, 08:33

2

5

2,484

by: Kinshook

18 Jan 2021, 09:23

ER

Is MN Odd?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

thevenus

11 Oct 2012, 00:13

1

5

3,486

by: bumpbot

20 Jan 2021, 10:43

ER

Is the product of integers m and n odd?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

avohden

09 Oct 2013, 19:56

3

5

3,591

by: bumpbot

20 Jan 2021, 10:45

ER

What is the cost per ounce of the soda in a certain carton?

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

fozzzy

17 Sep 2013, 01:26

1

5

2,762

by: bumpbot

20 Jan 2021, 10:45

ER

Is x > y? (1) x - 5 > y - 5 (2) x^2 > xy

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

kumar83

05 Nov 2020, 06:49

4

5

2,875

by: bumpbot

20 Jan 2021, 10:45

ER

a, b, c are consecutive integers, so that a < b < c. Is the

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

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

eladshush

04 Oct 2010, 06:42

13

5

4,863

by: bumpbot

23 Jan 2021, 13:09

ER

Is ab > 0? (1) |a + b| ≠ |a| + |b| (2) a < b

505-555 (Easy) | Absolute Values, Inequalities

505-555 (Easy) | Absolute Values, Inequalities hide tags

Bunuel

29 Apr 2016, 03:59

18

5

4,758

by: CEdward

24 Jan 2021, 23:55

ER

Is x + y > 0?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

EgmatQuantExpert

23 May 2017, 06:58

4

5

6,105

by: bumpbot

29 Jan 2021, 12:23