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

79,156

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

188,781

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

488,371

by: bb

29 Aug 2025, 13:27

ER

Is the average (arithmetic mean) of the seven numbers negative?

Sub 505 (Easy) | Statistics and Sets Problems

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

UncleFrodo

17 Jul 2018, 12:14

25

4

19,332

by: raka99

04 Jul 2023, 22:19

ER

If k does not equal -1, 0 or 1, does the point of intersection of line

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

anceer

13 Dec 2014, 03:58

35

5

6,229

by: bumpbot

05 Jul 2023, 01:26

ER

If x is an integer from 1 to 10, inclusive. What is the value of x?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

05 Jul 2023, 01:30

7

2

2,202

by: GMATinsight

05 Jul 2023, 04:12

ER

Is y < z ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Gnpth

07 Aug 2014, 11:37

9

11

4,135

by: bumpbot

05 Jul 2023, 05:16

ER

If y is not equal to zero, is ax > y? (1) a = -y = |x| (2) a < 1

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

Bunuel

22 Dec 2016, 02:35

5

7

2,259

by: bumpbot

05 Jul 2023, 08:07

If n is a positive integer, what is the value of n?

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

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

Aabhash777

16 Nov 2022, 23:21

7

5,311

by: ankitgoswami

05 Jul 2023, 11:55

ER

If x, y and z are different integers, what is the value of y?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

16 Jun 2023, 06:00

1

921

by: ash124

05 Jul 2023, 13:02

ER

In the figure above, are l1 and l2 parallel to each other?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

06 Feb 2018, 05:47

2

4,184

by: bumpbot

05 Jul 2023, 14:17

ER

Is K an even number ? (1) |K - |K|| = K + |K| (2) K^(1/2) = K

655-705 (Hard) | Absolute Values +2 tags

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

Bunuel

06 Dec 2018, 05:36

21

13

6,250

by: bumpbot

05 Jul 2023, 14:22

ER

The area of a rectangle is 28 square centimeter. What is the perimeter

805+ (Hard) | Algebra, Geometry

805+ (Hard) | Algebra, Geometry hide tags

niteshwaghray

01 Jun 2017, 13:34

27

6

8,724

by: bumpbot

05 Jul 2023, 14:29

ER

If x is a positive integer, what is the units digit of 567^24*x^y

655-705 (Hard) | Algebra +2 tags

655-705 (Hard) | Algebra, Fractions and Ratios, Remainders hide tags

chetan2u

22 Sep 2016, 23:56

15

12

4,476

by: bumpbot

05 Jul 2023, 14:33

ER

If the base of triangle PQR is 5, what is the perimeter of the triangl

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

Bunuel

13 Nov 2019, 01:46

18

7

4,647

by: bumpbot

05 Jul 2023, 20:55

ER

What is the number of 360-degree rotations that a bicycle wheel made

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

02 Sep 2018, 21:52

1

4

1,935

by: bumpbot

05 Jul 2023, 21:52

ER

If xyz > 0, is x(y^2)(z^3) > 0 ? (1) y > 0 (2) x > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

03 Jan 2021, 15:08

13

7

7,469

by: bumpbot

06 Jul 2023, 00:24

ER

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

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

10 Jan 2017, 03:53

6

4

2,558

by: bumpbot

06 Jul 2023, 02:36

ER

If x > 0, is x > y? (1) |x - y| > |y| (2) |x - y| = 3

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

09 Dec 2019, 01:35

9

3

3,312

by: bumpbot

06 Jul 2023, 04:03

ER

Is - 25 + 19 + n = s ? (1) s = 2 (2) n/s = 4

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

05 Jul 2023, 01:30

6

5

1,274

by: Bunuel

06 Jul 2023, 08:06

ER

If a, b, and c are integers. Is abc + ab + c odd?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

06 Jul 2023, 01:31

3

2

1,667

by: Archit3110

06 Jul 2023, 08:38

ER

Given that A > 0 and C > 0, is (A + B)/(C + B) > A/C?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

23 Sep 2015, 03:29

21

10

4,618

by: singhall

06 Jul 2023, 09:34

ER

In the figure above, PQRT is a rectangle. What is the length of segmen

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

26 Apr 2019, 03:15

25

12

20,308

by: kop18

06 Jul 2023, 20:53

ER

The base of the roof of a building has a pentagonal shape. The roof is

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

18 Oct 2016, 23:41

15

7

5,510

by: Vibhatu

07 Jul 2023, 01:09

ER

If machine A and machine B can finish the task in 4 hours when working

505-555 (Easy) | Work and Rate Problems

505-555 (Easy) | Work and Rate Problems hide tags

Bunuel

06 Jul 2023, 01:31

2

2,176

by: walterwhite756

07 Jul 2023, 01:49

ER

In the figure above, what is the area of triangle ABD?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

04 Aug 2021, 06:30

6

2,485

by: bumpbot

07 Jul 2023, 05:59

ER

What percent of the solution is water?

605-655 (Medium) | Mixture Problems

605-655 (Medium) | Mixture Problems hide tags

Bunuel

27 Jan 2017, 09:38

22

12

6,269

by: bumpbot

07 Jul 2023, 09:12

ER

If |x+1|=|y+1|, what is the value of x+y? 1) xy<0

705-805 (Hard) | Absolute Values

705-805 (Hard) | Absolute Values hide tags

MathRevolution

20 Dec 2017, 01:53

16

5

3,807

by: gmatophobia

07 Jul 2023, 09:33

ER

How many digits does integer x have?

655-705 (Hard) | Fractions and Ratios, Number Properties

655-705 (Hard) | Fractions and Ratios, Number Properties hide tags

Bunuel

13 Dec 2016, 11:10

4

3

3,840

by: bumpbot

08 Jul 2023, 03:21

ER

Is x + x > -y (1) x + y = 1 (2) x > 0

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

08 Jun 2023, 06:15

2

1,116

by: andrenoble

08 Jul 2023, 05:05

ER

Land for a pasture is enclosed in the shape of a 6-sided figure; all

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

GMATBusters

14 Nov 2018, 09:37

43

8

7,945

by: bumpbot

08 Jul 2023, 05:35

ER

A craftsperson made 126 ornaments and put them all into boxes.

555-605 (Medium) | Algebra, Word Problems

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

dcummins

26 Nov 2018, 02:28

59

7

12,048

by: kelly_jacques

08 Jul 2023, 08:39

ER

What is the value of t? (1) t(t - 1)^2 = 4t (2) t is an even integer

555-605 (Medium) | Algebra +2 tags

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

Bunuel

09 Oct 2020, 00:15

21

11

5,378

by: Bunuel

08 Jul 2023, 09:57

If n is a positive integer, what is the value of n?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

OmkarSheth008

07 Jul 2023, 10:44

3

4

1,271

by: Akshay97

08 Jul 2023, 10:19

The local hiking trail is in the shape of a right trapezoid.

655-705 (Hard) | Algebra, Geometry

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

Laila12618

07 Jul 2023, 04:19

1

1,330

by: hinasingh

08 Jul 2023, 10:50

ER

When a positive integer n is divided by 4, what is the remainder?

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

19 Jun 2023, 04:00

3

1

1,215

by: $!vakumar.m

08 Jul 2023, 10:57

ER

What is the value of x ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

30 Dec 2020, 10:11

3

2

1,812

by: bumpbot

08 Jul 2023, 13:27

ER

If a, b are positive integers, is a/b a terminating decimal?

555-605 (Medium) | Multiples and Factors, Number Properties

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

Bunuel

07 Jun 2023, 06:15

3

2

1,630

by: Nabneet

08 Jul 2023, 21:03

ER

Is rst > rs/t? (1) rst > 2 (2) t > 2

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

nishith17

09 Jul 2023, 00:17

14

10

4,351

by: bumpbot

08 Jul 2023, 22:37

ER

There are 5 employees in a team and all of them do not have equal sala

605-655 (Medium) | Statistics and Sets Problems

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

GMATinsight

04 May 2019, 02:44

10

2

1,906

by: bumpbot

09 Jul 2023, 02:13

ER

If a and b are positive integers, what is the remainder when 4^(a+1+2b

555-605 (Medium) | Exponents, Remainders

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

Bunuel

07 Dec 2020, 09:15

4

2

1,836

by: bumpbot

09 Jul 2023, 02:17

ER

An article purchased by Mr. A for $x and was sold to Mr. B for $y. Wha

655-705 (Hard) | Percent and Interest Problems

655-705 (Hard) | Percent and Interest Problems hide tags

Bunuel

15 Apr 2026, 03:55

15

6

5,748

by: bumpbot

09 Jul 2023, 03:32

ER

If n is a positive integer, what is the remainder when (n^2 - 1) is di

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

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

Bunuel

07 Apr 2021, 09:00

5

3

2,788

by: bumpbot

09 Jul 2023, 07:40

ER

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

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

saurya_s

08 Nov 2022, 10:04

43

5

16,716

by: bumpbot

09 Jul 2023, 07:50

ER

If x is a positive integer, find the value of x? 1) sum of x consecut

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

GMATinsight

09 Jul 2023, 01:41

4

8

1,692

by: IanStewart

09 Jul 2023, 09:58

ER

The members of a local club contributed equally to pay Rs.600 towards

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

07 Jul 2023, 10:21

3

2,234

by: walterwhite756

09 Jul 2023, 21:11

ER

If 3 is a factor of positive integers x and y, is x odd?

605-655 (Medium) | Exponents +2 tags

605-655 (Medium) | Exponents, Multiples and Factors, Number Properties hide tags

Bunuel

07 Jul 2023, 01:31

3

1,385

by: walterwhite756

09 Jul 2023, 21:45

If p, q, and r are such that r lies between p and q on the number line

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

TheUltimateWinner

12 Jun 2019, 09:24

4

3

2,074

by: bumpbot

10 Jul 2023, 00:21

ER

On a number line, integer C is between integers A and B. What is the

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

Bunuel

16 Feb 2016, 00:53

8

3,759

by: bumpbot

10 Jul 2023, 01:36

ER

If a, b, c, d, and e are consecutive odd integers such that a < b < c

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

10 Jul 2023, 01:30

3

1

1,402

by: walterwhite756

10 Jul 2023, 01:57

ER

What is the units digit of even integer n ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

15 Jun 2018, 23:44

7

8

3,946

by: bumpbot

10 Jul 2023, 08:53

ER

Is b/3 an integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

1, 2

valerjo79

26 Nov 2012, 03:16

75

21

15,363

by: bumpbot

10 Jul 2023, 09:58

ER

Is x + y negative? (1) x is negative. (2) y is positive.

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

06 Jun 2019, 04:38

7

5

12,776

by: bumpbot

10 Jul 2023, 20:28