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

78,569

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

188,427

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

487,774

by: bb

29 Aug 2025, 13:27

ER

If ab = c, is 72/b an integer? (1) c = 36 (2) 72/a is an integer

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

02 Dec 2019, 23:37

7

9

1,806

by: hero_with_1000_faces

05 Dec 2019, 05:46

ER

If a^2 + b^2 = 1, is (a + b) = 1? (1) ab = 0 (2) b = 0

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

30 Oct 2018, 04:16

2

2,120

by: RusskiyLev

05 Dec 2019, 09:40

ER

If n and m are positive, is m < 9 < n ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

29 Aug 2019, 05:53

4

1,490

by: Chethan92

05 Dec 2019, 14:12

ER

What is the area of square ABCD?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

17 Feb 2016, 03:35

7

8,122

by: bumpbot

05 Dec 2019, 19:45

ER

If Machine X can produce 80 widgets in 4 hours, how long would it take

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

17 Feb 2016, 03:39

6

5

4,733

by: bumpbot

05 Dec 2019, 19:48

ER

Is integer R positive?

605-655 (Medium) | Absolute Values

605-655 (Medium) | Absolute Values hide tags

Fairness

03 Jul 2013, 06:38

8

9

6,158

by: bumpbot

06 Dec 2019, 03:22

ER

If m=p^x*q^y, where p and q are different positive prime numbers. Is m

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

06 Dec 2019, 03:34

4

2

3,483

by: Archit3110

07 Dec 2019, 04:03

ER

What is the value of x? (1) x > 9(2) x < 11

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

29 Apr 2019, 04:36

3

6

2,025

by: mayursurya

07 Dec 2019, 05:51

ER

If John traveled 9 miles on his unicycle, what was his speed in miles

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

18 Sep 2018, 21:59

7

4

2,110

by: kiendt

08 Dec 2019, 07:02

ER

The mean of a set of n consecutive positive integers is m1. One of the

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

Bunuel

06 Dec 2019, 03:05

17

6

3,402

by: kiendt

08 Dec 2019, 07:14

ER

If A and B are different points on graph x^2 + y^2 = 25 then what is

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

GMATinsight

12 Oct 2017, 10:57

8

2

2,000

by: bumpbot

09 Dec 2019, 00:56

ER

A circle with center (1, 0) and radius 2 lies in the

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

rxs0005

19 Mar 2011, 06:43

15

7

4,886

by: bumpbot

09 Dec 2019, 01:26

ER

If m is a positive integer, is m! + (m + 1) divisible by 11?

655-705 (Hard) | Multiples and Factors, Number Properties

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

Bunuel

09 Dec 2019, 00:35

3

3,429

by: LevanKhukhunashvili

09 Dec 2019, 09:07

ER

In a certain forest 1/5 of the trees are Walnuts and 1/6 of the trees

555-605 (Medium) | Inequalities, Word Problems

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

Bunuel

09 Dec 2019, 00:53

2

2,137

by: LevanKhukhunashvili

09 Dec 2019, 09:36

ER

If n is an integer between 40 and 50, inclusive, n=?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

rohan2345

06 Dec 2019, 10:43

1

1,715

by: globaldesi

09 Dec 2019, 10:35

A coordinate plane is shown in the figure..

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

peacewarriors

23 May 2014, 01:09

11

3

2,742

by: bumpbot

10 Dec 2019, 03:10

ER

In the attached figure: On the xy-coordinate plane, a

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

nades09

24 Aug 2011, 20:25

4

5

4,990

by: bumpbot

10 Dec 2019, 04:22

ER

If ab is two digit positive integer, what is remainder of 8^(ab) divid

655-705 (Hard) | Exponents, Remainders

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

Bunuel

10 Dec 2019, 00:38

14

7

2,479

by: Archit3110

10 Dec 2019, 19:41

ER

For a wedding reception, a banquet facility charges a flat rate of $20

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

minwoswoh

13 Dec 2014, 16:30

6

5

7,283

by: mangamma

11 Dec 2019, 07:48

ER

What is the value of x?

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

GMATBusters

07 Dec 2019, 19:17

5

13

4,298

by: rajatchopra1994

11 Dec 2019, 10:15

ER

If x is a non-zero integer, what is the value of x?

605-655 (Medium) | Absolute Values, Algebra

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

chetan2u

11 Dec 2019, 00:54

4

2

1,457

by: nick1816

11 Dec 2019, 15:57

ER

Is q negative?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

21 Feb 2016, 13:46

4

3

4,008

by: bumpbot

11 Dec 2019, 18:00

What are the ages of three brothers?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

TheUltimateWinner

10 Dec 2019, 08:09

2

4

8,997

by: rajatchopra1994

11 Dec 2019, 20:09

ER

What is the value of |a| - |b| ?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Bunuel

28 May 2015, 06:20

11

4,434

by: bumpbot

11 Dec 2019, 22:54

ER

If x and y are integers, is x > y?

705-805 (Hard) | Exponents, Inequalities

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

Bunuel

01 Jul 2017, 00:21

8

5

3,247

by: exc4libur

12 Dec 2019, 05:25

ER

Is the x-intercept of the non-horizontal line L negative?

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

fskilnik

18 Feb 2019, 10:04

11

4

2,131

by: exc4libur

12 Dec 2019, 05:44

ER

If e is a nonzero integer, is 1/2^e greater than or less than 1?

655-705 (Hard) | Exponents, Inequalities

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

Bunuel

05 Mar 2019, 05:16

1

6

1,784

by: mokiburnsred

13 Dec 2019, 01:25

ER

What is the capacity, in liters, of a certain aquarium?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

GMATBusters

01 Nov 2018, 07:47

3

6,139

by: TheNightKing

13 Dec 2019, 11:03

ER

If Z^(1/2) is greater than 0, is Z^(1/2) greater than Z ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

24 Jul 2019, 00:26

3

4

6,535

by: mafuz

14 Dec 2019, 03:55

ER

The range of the heights of the female students in a certain class is

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

Bunuel

10 Dec 2019, 05:40

8

1

7,947

by: firas92

15 Dec 2019, 02:47

ER

If 9 models participated in a certain fashion show featuring coats, ho

Sub 505 (Easy) | Algebra, Word Problems

Sub 505 (Easy) | Algebra, Word Problems hide tags

GMATBusters

31 Oct 2018, 21:59

2

3

4,103

by: ScottTargetTestPrep

15 Dec 2019, 19:39

ER

What is the value of |x-2|?

555-605 (Medium) | Absolute Values, Algebra

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

chetan2u

16 Dec 2019, 00:49

2

1,588

by: ManjariMishra

16 Dec 2019, 01:42

ER

If x and y are integers, what is the value of (2^x)^y (1) 2^x + 2^y =

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

Bunuel

16 Dec 2019, 02:55

1

3

3,993

by: Archit3110

16 Dec 2019, 04:23

ER

Is 1 < y < 2 ? (1) y^2 < y (2) 1 < y^2 + y < 2

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

16 Dec 2019, 02:20

3

1

1,794

by: chetan2u

16 Dec 2019, 19:08

ER

For the integers x and y, if xy is a multiple of 25, is y a multiple o

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

MathRevolution

02 Mar 2018, 01:17

10

4

2,450

by: bumpbot

16 Dec 2019, 22:14

ER

If x + y > 0, is xy < 0? (1) x^2y < 1 (2) x + 2y < 0

655-705 (Hard) | Exponents, Inequalities

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

Bunuel

05 Nov 2018, 00:31

9

7

3,488

by: bumpbot

18 Dec 2019, 12:33

ER

a, b, c, and d are integers; abcd ≠ 0; what is the value of cd?

Sub 505 (Easy) | Algebra, Exponents

Sub 505 (Easy) | Algebra, Exponents hide tags

Runner2

16 Jan 2012, 00:43

12

6

12,289

by: CrackverbalGMAT

19 Dec 2019, 01:15

ER

If 2x + y = –31, what is the value of x?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

19 Dec 2019, 04:11

3

5

2,185

by: bumpbot

19 Dec 2019, 03:54

ER

If 0 < a/b < 1 and 0 < a, what is the value of integer a?

705-805 (Hard) | Fractions and Ratios

705-805 (Hard) | Fractions and Ratios hide tags

Bunuel

03 Jul 2018, 11:05

4

2

1,580

by: exc4libur

19 Dec 2019, 07:06

ER

If xy ≠ 0, is x^y <= y^x? (1) x^(1/2) = y (2) x = 2y

705-805 (Hard) | Exponents, Inequalities

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

Bunuel

19 Dec 2019, 01:58

12

1

3,015

by: chetan2u

19 Dec 2019, 07:56

ER

If 2|x| + x^2 ≠ 0, what is the value of 1/2|x| + x^2?

655-705 (Hard) | Absolute Values +3 tags

655-705 (Hard) | Absolute Values, Fractions and Ratios, Multiples and Factors, Number Properties hide tags

chetan2u

13 Dec 2019, 22:30

6

3

2,145

by: fireflyejd1

19 Dec 2019, 08:04

ER

If w, x, and y are integers and 54^6 = 2^w*3^(x + y) what is the value

605-655 (Medium) | Algebra, Exponents

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

Bunuel

19 Dec 2019, 04:05

6

2

2,519

by: uchihaitachi

19 Dec 2019, 09:56

ER

In triangle ABC, what is the measurement of angle C?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

19 Dec 2019, 00:21

10

11

4,760

by: Bunuel

19 Dec 2019, 23:28

ER

x is a positive integer greater than two; is (x^3 + 19837)(x^2 + 5)(x

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

26 Jun 2015, 02:07

7

13

3,770

by: bumpbot

20 Dec 2019, 00:03

ER

If County X consists of five towns, A, B, C, D, and E, how many people

Sub 505 (Easy) | Algebra, Word Problems

Sub 505 (Easy) | Algebra, Word Problems hide tags

Sajjad1994

29 Aug 2019, 01:08

2

5,556

by: Sajjad1994

21 Dec 2019, 06:36

ER

How much more expensive are 15 oranges than 15 apples? (1) Th

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Sajjad1994

30 Aug 2019, 10:54

1

3

2,081

by: MathRevolution

22 Dec 2019, 20:38

ER

A cake recipe calls for sugar and flour in the ratio of 2 cups to 1 cu

505-555 (Easy) | Fractions and Ratios

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

Bunuel

20 Dec 2019, 00:07

6

7

9,207

by: Bunuel

22 Dec 2019, 22:41

ER

How many members of the staff of Advanced Computer Technology Consulti

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

22 Dec 2019, 23:33

6

7

2,722

by: Bunuel

23 Dec 2019, 21:42

ER

If the digit h is the hundredths’ digit in the decimal number n = 0.3h

555-605 (Medium) | Fractions and Ratios, Inequalities

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

Bunuel

26 Sep 2018, 05:34

3

5

2,475

by: bumpbot

24 Dec 2019, 02:34

ER

In the circle above with center O, what is the measure of angle AOB?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

13 Sep 2018, 02:34

5

6,739

by: bumpbot

24 Dec 2019, 11:33