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

176

15

78,674

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

188,500

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

487,898

by: bb

29 Aug 2025, 13:27

Is positive integer n divisible by 3 ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

silver870

16 Oct 2019, 05:49

48

7

18,914

by: agrasan

16 Jul 2025, 21:03

ER

If d is a positive integer, is d^1/2 an integer ?

505-555 (Easy) | Number Properties, Roots

505-555 (Easy) | Number Properties, Roots hide tags

kamalkicks

04 Apr 2010, 12:46

28

11

13,916

by: bumpbot

03 Jul 2025, 10:59

ER

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

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

sang5650

31 Mar 2010, 15:34

3

7

5,013

by: bumpbot

19 Feb 2020, 07:17

ER

Of the 1400 college teachers surveyed, 42% said they considered engagi

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

1, 2

burnttwinky

30 Mar 2010, 22:58

250

36

53,207

by: bumpbot

17 Aug 2025, 00:23

ER

If p is a prime number greater than 2, what is the value of p ?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

1, 2

aljatar

28 Mar 2010, 05:56

142

20

62,881

by: bumpbot

30 Dec 2025, 09:12

ER

During a 7-year period the profits of Midas, Inc. changed by

555-605 (Medium) | Percent and Interest Problems

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

ankithakhu

28 Mar 2010, 01:57

19

12

7,082

by: bumpbot

13 May 2024, 10:25

ER

How many hours did it take Helen to drive from her house to her parent

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

changhiskhan

26 Mar 2010, 17:00

81

14

34,534

by: bumpbot

29 Nov 2025, 10:18

ER

If x is positive is x divisible by 2 ? (1) x^3+x is

805+ (Hard) | Algebra, Number Properties

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

anaik100

22 Mar 2010, 11:56

14

9

11,119

by: gmatopoeia

07 Sep 2011, 02:59

ER

If N is a positive Integer, is the units digit of N equal to zero?

505-555 (Easy) | Multiples and Factors

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

meaglesp345

20 Mar 2010, 14:57

121

14

44,011

by: bumpbot

09 Nov 2024, 11:15

ER

Is 7^7/7^x an integer?

655-705 (Hard) | Algebra +2 tags

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

aramjung

19 Mar 2010, 19:35

38

3

14,999

by: bumpbot

11 Sep 2025, 00:16

ER

Is |x| + |x - 1| = 1? (1) x ≥ 0 (2) x ≤ 1

555-605 (Medium) | Absolute Values, Inequalities

555-605 (Medium) | Absolute Values, Inequalities hide tags

1, 2

abhi758

08 Jun 2021, 08:38

58

22

17,451

by: bumpbot

10 Jul 2022, 22:59

What is the value of X? 1) X is a mode of 2) X is neither

505-555 (Easy) | Statistics and Sets Problems

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

BarneyStinson

14 Mar 2010, 13:31

2

5

4,067

by: karan12345

02 Jun 2020, 00:05

ER

Is t^2 > t/3?

705-805 (Hard) | Absolute Values, Inequalities

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

moderife

24 Dec 2012, 03:08

10

13

5,775

by: exc4libur

26 Dec 2019, 09:29

ER

Quadrilateral ABCD is a rhombus and points C, D, and E are

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

vscid

13 Oct 2013, 16:03

18

3

5,038

by: Bunuel

13 Oct 2013, 16:05

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

106,344

by: bumpbot

23 Oct 2024, 03:48

ER

On a certain fishing boat that catches tuna, wheeled carts

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

xyztroy

07 Nov 2013, 01:17

10

9

4,400

by: bumpbot

10 Nov 2025, 13:13

ER

Is integer x prime?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

jeeteshsingh

07 Jan 2014, 07:13

7

11

4,761

by: bumpbot

08 Apr 2022, 02:00

ER

The net value of a certain stock increased at a constant

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

AtifS

05 Mar 2010, 23:58

4

3,844

by: KarishmaB

11 Jun 2014, 01:42

ER

If x ≠ -y is (x - y)/(x + y) > 1? (1) x > 0 (2) y < 0

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

1, 2

jusjmkol740

03 Mar 2010, 07:22

257

26

58,413

by: bumpbot

14 Dec 2025, 03:38

ER

In the xy-plane, what is the y-intercept of line l?

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

testprep2010

28 Feb 2010, 20:51

545

14

138,413

by: bumpbot

05 Feb 2025, 00:26

ER

If p/q > 5, is q < 2?

Poor Quality

Poor Quality hide tags

jeeteshsingh

15 Oct 2013, 09:04

6

31,167

by: Bunuel

15 Oct 2013, 09:14

ER

What is the volume of a certain rectangular solid?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

1, 2

amod243

14 Dec 2012, 05:52

522

20

70,121

by: bumpbot

02 Apr 2025, 18:32

ER

Is r/s^2 a terminating decimal?

555-605 (Medium) | Fractions and Ratios

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

SudiptoGmat

23 Feb 2010, 14:23

74

5

27,435

by: bumpbot

21 Jul 2025, 02:03

ER

If x, y, and z are integers greater than 1, and

805+ (Hard) | Exponents, Number Properties

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

jeeteshsingh

08 Oct 2012, 04:18

204

5

51,138

by: SatvikVedala

31 Aug 2024, 00:12

ER

Line m and n pass through point (1,2). Is the slope of m

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

1, 2

apoorvasrivastva

20 Feb 2010, 23:38

62

20

16,569

by: bumpbot

06 Aug 2023, 07:35

ER

Any decimal that has only a finite number of nonzero digits

555-605 (Medium) | Fractions and Ratios, Number Properties

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

1, 2

vscid

17 Feb 2010, 16:58

65

21

20,955

by: bumpbot

27 Sep 2024, 01:54

ER

a^2/b=-8 then what is the value of a(a-b)

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

demodrenyc

15 Jun 2012, 09:22

7

10

5,957

by: bumpbot

09 Jan 2022, 02:06

ER

Ten years ago, scientists predicted that the animal z would

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

alexBLR

13 Feb 2010, 16:38

81

19

20,944

by: bumpbot

16 Aug 2025, 10:13

ER

If n is a positive integer and r is the remainder when n^2 - 1 is

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

YTT

28 Jul 2015, 06:52

92

16

27,722

by: ablatt4

28 Aug 2025, 08:53

ER

Is rst = 1 ? (1) rs = 1 (2) st = 1

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

1, 2

loki

02 Feb 2022, 00:53

204

28

37,504

by: totaltestprepNick

28 Feb 2026, 09:16

ER

If # denotes one of the four arithmetic operations addition, subtracti

505-555 (Easy) | Arithmetic, Functions and Custom Characters

505-555 (Easy) | Arithmetic, Functions and Custom Characters hide tags

MrEasy

03 Feb 2010, 19:08

47

12

19,535

by: ManifestDreamMBA

07 Apr 2025, 09:14

ER

If a^m = b^n and if a ≠ b ≠ m ≠ n, what is the value of a + b + m + n?

655-705 (Hard) | Algebra, Exponents

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

dkverma

27 Jul 2015, 15:01

12

5

5,445

by: bumpbot

06 Feb 2022, 19:37

ER

If r and t are positive integers, is rt even?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

msand

04 Jul 2013, 06:48

10

6

15,753

by: bumpbot

10 Mar 2022, 07:48

ER

If c and d are integers, is c even?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

1, 2

zaarathelab

30 Jan 2010, 13:15

184

20

30,757

by: agrasan

16 Jul 2025, 20:47

ER

If x and y are integers and y = |x + 3| + |4 - x|, does y equals 7?

555-605 (Medium) | Absolute Values, Inequalities

555-605 (Medium) | Absolute Values, Inequalities hide tags

zaarathelab

27 Jul 2015, 14:57

331

19

42,490

by: Ishaan30

22 May 2025, 12:38

ER

A contractor combined x tons of a gravel mixture that contained 10 per

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

1, 2

ugimba

11 Jun 2019, 04:06

359

20

75,359

by: bumpbot

12 Jun 2025, 01:14

ER

Bob and Wendy planned to walk from their home to a

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

trzaskm

26 Jan 2010, 21:01

53

8

15,381

by: bumpbot

15 Jul 2024, 07:55

ER

In the diagram above, what is the length of MP if LNOQ is a

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

shanewyatt

26 Jan 2010, 14:29

4

6,021

by: bumpbot

22 Nov 2016, 12:37

ER

Beth's bank charges a service fee on a regular checking account for ea

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

ugimba

26 Jan 2010, 14:18

77

17

29,534

by: bumpbot

10 Jan 2026, 20:21

ER

Is 4 + n/6 an integer?

Sub 505 (Easy) | Multiples and Factors, Number Properties

Sub 505 (Easy) | Multiples and Factors, Number Properties hide tags

calvinhobbes

27 Jul 2015, 14:53

9

14

7,569

by: bumpbot

13 Apr 2024, 01:31

ER

x, y, and z are consecutive integers, and x < y < z. What is the avera

Sub 505 (Easy) | Number Properties, Statistics and Sets Problems

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

joyseychow

27 Jul 2015, 14:54

13

14

21,592

by: Angievirvi

10 Oct 2020, 11:50

ER

Is quadrilateral ABCD a rectangle?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

1, 2

gottabwise

23 Jan 2010, 21:18

137

26

43,667

by: bumpbot

22 Oct 2024, 23:21

ER

If angle BAD is a right angle, what is the length of side

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

gottabwise

23 Jan 2010, 16:43

6

5

12,916

by: Bunuel

24 Jan 2013, 07:24

ER

Does the decimal equivalent of p/q, where p and q are positive integer

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

vaivish1723

15 Sep 2020, 07:29

125

19

42,586

by: bumpbot

28 Oct 2025, 04:28

ER

During a 10-week summer vacation, was the average (arithmetic mean)

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

vaivish1723

20 Nov 2023, 08:18

100

14

27,687

by: bumpbot

30 Jan 2026, 03:53

ER

The operation* represents either addition, subtraction, or multiplicat

555-605 (Medium) | Arithmetic, Functions and Custom Characters

555-605 (Medium) | Arithmetic, Functions and Custom Characters hide tags

vaivish1723

16 Oct 2019, 03:49

91

8

30,609

by: bumpbot

14 Jun 2025, 03:45

ER

If p, s, and t are positive prime numbers, what is the value

555-605 (Medium) | Algebra +2 tags

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

vaivish1723

23 Jan 2010, 00:18

14

9

11,198

by: Basshead

28 Oct 2020, 12:21

ER

Last year, the five employees of company X took an average

605-655 (Medium) | Statistics and Sets Problems

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

GMAT10

22 Aug 2012, 01:28

107

17

27,751

by: bumpbot

29 Sep 2025, 07:36

ER

If all of the employees of Company K who worked there last January are

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

rahulms

27 Jul 2015, 14:43

8

5

12,197

by: bumpbot

24 Jan 2026, 12:21

ER

Is |x| + |x - 1| = 1?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

rahulms

22 Jan 2010, 07:42

15

7

5,487

by: MSIMBA

14 Jun 2019, 20:20