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

78,860

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

856

24

188,607

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

488,054

by: bb

29 Aug 2025, 13:27

ER

Given that x and y are positive integers, what is the units digit of

555-605 (Medium) | Exponents +2 tags

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

Bunuel

29 Feb 2016, 12:30

26

5

5,046

by: bumpbot

07 May 2020, 02:36

ER

David and Stacey are riding bicycles on a flat road at a constant rate

505-555 (Easy) | Distance and Speed Problems

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

Bunuel

28 Feb 2016, 09:40

26

5

6,238

by: bumpbot

20 Apr 2021, 16:19

ER

Is the perimeter of rectangle R greater than 28?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

17 Apr 2020, 03:09

26

9

4,668

by: bumpbot

11 Sep 2021, 04:28

ER

Is x > 0?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

1, 2

afife76

27 Feb 2014, 11:15

26

21

9,203

by: bumpbot

30 Oct 2021, 06:47

ER

In the above diagram, a square is inscribed in a circle, which is insc

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

26 Aug 2015, 00:48

26

13

5,456

by: Abdeviliiers

06 Nov 2021, 07:35

ER

If A and C are points in a plane, C is the center of circle

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

macjas

27 May 2012, 09:36

26

6

8,918

by: bumpbot

11 Apr 2022, 02:12

ER

For integers x and y, 1 < x < y. Is xy a factor of 11!?

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

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

Bunuel

29 Jul 2015, 15:52

26

7

5,990

by: bumpbot

13 May 2022, 17:27

The temperature was measured once daily for 400 days. On 76% of these

805+ (Hard) | Arithmetic, Statistics and Sets Problems

805+ (Hard) | Arithmetic, Statistics and Sets Problems hide tags

natmyrrha

23 Jun 2019, 02:08

26

4

3,998

by: bumpbot

04 Jul 2022, 17:16

ER

The sequence S consists of 10 terms: x, x^2, x3, ..., x^10, where x is

705-805 (Hard) | Inequalities, Sequences

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

Bunuel

01 Jun 2020, 04:16

26

8

3,518

by: bumpbot

29 Sep 2022, 15:34

ER

What is the remainder of n/15?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

cjcj

24 Sep 2015, 20:57

26

7

5,109

by: adityasuresh

28 Dec 2022, 03:08

ER

What is the average (arithmetic mean) of the first 90 measurements

Sub 505 (Easy) | Statistics and Sets Problems

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

mimi0102

23 Jun 2015, 22:09

26

4

15,231

by: bumpbot

11 Jan 2023, 10:47

ER

The sequence x1, x2, ... xn is such that x1 = 5, x2 = 5, x3 = 0, x4 =

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

nkmungila

19 Feb 2018, 05:58

26

4

6,644

by: bumpbot

12 Jan 2023, 10:13

ER

What is the distance between City A and City C ?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

26 Apr 2019, 07:35

26

5

14,927

by: bumpbot

24 Jan 2023, 09:51

ER

If x and y are integers, is x = y ? (1) x! = y! (2) x^y = x

655-705 (Hard) | Exponents

655-705 (Hard) | Exponents hide tags

fitzpratik

06 Dec 2018, 06:40

26

6

3,729

by: bumpbot

03 Apr 2023, 06:48

ER

If x and y are integers, and x ≠ 0, what is the value of x^y?

555-605 (Medium) | Exponents, Number Properties

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

Bunuel

02 Jun 2015, 07:03

26

9

7,406

by: bumpbot

05 May 2023, 11:22

ER

Is the perimeter of a certain rectangular garden greater than 50 meter

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

gmatt1476

21 Sep 2019, 18:37

26

6

9,626

by: bumpbot

01 Jun 2023, 02:49

ER

If x 0, what is the value of x? (1) |x + 2| = |x| (2) |x^x| = 1

555-605 (Medium) | Absolute Values, Exponents

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

Bunuel

29 Nov 2018, 01:42

26

9

5,677

by: bumpbot

10 Jun 2023, 19:54

ER

What is the value of |a - b| ? (1) a^2 - b^2 = 9 (1) a^2 + b^2 = 15

655-705 (Hard) | Absolute Values, Algebra

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

Bunuel

02 Mar 2018, 01:06

26

13

7,537

by: bumpbot

17 Jun 2023, 04:02

ER

Does the graph of the function f(x) = ax^2 + bx + 7, where a, b and c

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

Bunuel

04 Oct 2021, 01:30

26

5

4,415

by: gmatophobia

16 Aug 2023, 13:19

ER

If q > 1, what is the value of integer q?

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

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

Bunuel

05 Nov 2019, 05:51

26

11

5,612

by: bumpbot

01 Oct 2023, 02:15

ER

Two teachers, Ms. Ames and Mr. Betancourt, each had N cookies. Ms. Am

555-605 (Medium) | Remainders, Word Problems

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

Bunuel

09 Apr 2015, 07:14

26

9

10,006

by: bumpbot

28 Oct 2023, 08:34

ER

In the xy-plane, line L intersects y = x^2 + 2 at how many points?

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

Bunuel

01 Nov 2019, 07:48

26

7

9,964

by: bumpbot

12 Dec 2023, 00:07

ER

If A and B are positive integers, is the product AB even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

03 Sep 2012, 06:06

26

8

26,180

by: bumpbot

20 Dec 2023, 18:08

ER

Is v − w < 0? (1) v − 2w < 0 (2) 5w − v < 0

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

wunstepcloser

29 Jan 2022, 09:10

26

6

4,604

by: bumpbot

24 Dec 2023, 13:17

ER

Is the quadrilateral ABCD a square?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

29 Jul 2015, 03:09

26

12

9,645

by: bumpbot

27 Dec 2023, 03:35

ER

What is the standard deviation of the values of the 20 coins in a

Sub 505 (Easy) | Statistics and Sets Problems

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

Skywalker18

20 Jun 2016, 11:09

26

5

21,550

by: Bunuel

27 Dec 2023, 23:54

ER

Is x > 0 ? (1) |3 - x| < |x + 5| (2) |3 - 2x| < x - 1

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

21 Jul 2020, 00:56

26

12

6,503

by: bumpbot

29 Dec 2023, 22:14

ER

What is the hundreds digit if the integer s?

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

felippemed

06 Jan 2017, 20:44

26

6

17,508

by: bumpbot

31 Dec 2023, 20:53

ER

What is the value of x ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

wizard

01 Mar 2012, 00:31

26

10

11,458

by: bumpbot

08 Jan 2024, 16:51

ER

Of the people surveyed last Monday, 60% were homeowners. Of the people

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

HarveyKlaus

14 Aug 2016, 11:06

26

5

12,056

by: bumpbot

19 Jan 2024, 05:42

ER

Is x^2 > 1/x? (1) x^2 > x (2) 1 > 1/x

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

paddy41

29 Apr 2017, 01:36

26

12

9,000

by: bumpbot

07 Feb 2024, 23:01

ER

Is k^2 +k -2 > 0 ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

anartey

12 Feb 2013, 15:57

26

13

12,344

by: bumpbot

11 May 2024, 06:00

ER

What is the value of positive integer x?

555-605 (Medium) | Exponents, Number Properties

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

Bunuel

12 Feb 2015, 07:01

26

8

7,707

by: bumpbot

31 May 2024, 02:54

ER

What is the value of |4−|3−x||? (1) |x−4|=6 (2) |6−x|=4

705-805 (Hard) | Absolute Values

705-805 (Hard) | Absolute Values hide tags

Bunuel

28 Apr 2017, 03:00

26

6

6,609

by: bumpbot

06 Aug 2024, 11:08

ER

At what speed was Erik running when he was at the halfway point of his

505-555 (Easy) | Distance and Speed Problems

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

pacifist85

06 Feb 2015, 09:52

26

13

9,577

by: bumpbot

12 Aug 2024, 07:03

A two digit number is randomly selected and multiplied by itself x

605-655 (Medium) | Multiples and Factors, Probability

605-655 (Medium) | Multiples and Factors, Probability hide tags

benejo

06 Apr 2018, 02:49

26

5

5,441

by: bumpbot

29 Aug 2024, 09:36

ER

If the sum of the digits of the positive two-digit number x is 4, what

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

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

enigma123

18 Dec 2017, 23:52

26

12

21,882

by: bumpbot

02 Oct 2024, 04:49

ER

If xyz 0, is x(y + z) = 0?

655-705 (Hard) | Absolute Values, Algebra

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

Bunuel

27 Feb 2020, 00:24

26

6

7,088

by: bumpbot

08 Nov 2024, 02:25

ER

What is the median of the data set S that consists of the integers 17

505-555 (Easy) | Statistics and Sets Problems

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

gmatt1476

21 Sep 2019, 16:04

26

4

12,728

by: bumpbot

18 Nov 2024, 14:27

ER

If x, y, and z are all positive integers, what is the

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

1, 2

Maxswe

08 Nov 2012, 10:27

26

22

13,330

by: bumpbot

22 Nov 2024, 02:06

ER

If N is a positive integer, is N^3/4 an integer?

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

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

kiran120680

01 Dec 2024, 11:20

26

11

6,595

by: Bunuel

02 Dec 2024, 01:19

ER

What is the greatest common divisor of integers r and s ?

505-555 (Easy) | Multiples and Factors

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

Bunuel

23 May 2020, 07:15

26

7

7,990

by: bumpbot

25 Dec 2024, 05:18

ER

In the finite sequence of positive integers A1, A2, A3, ..., A11,

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

RITU700

05 Mar 2016, 13:08

26

5

7,581

by: bumpbot

23 Jan 2025, 21:30

ER

How many men are in a certain company's vanpool program?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

24 Jun 2018, 20:59

26

16

20,772

by: bumpbot

04 Feb 2025, 14:26

ER

The ratio of males to females in a particular school is 4:5. How many

555-605 (Medium) | Fractions and Ratios

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

Bunuel

18 Mar 2015, 05:16

26

9

13,308

by: bumpbot

13 Feb 2025, 06:47

ER

Does x = y? (1) |x| = |y| (2) x^2 = y^2

Sub 505 (Easy) | Absolute Values

Sub 505 (Easy) | Absolute Values hide tags

GMATBusters

01 Nov 2018, 08:10

26

3

8,651

by: bumpbot

27 Feb 2025, 15:00

ER

Saul invests an amount of dollars in investment A at i% simple annual

705-805 (Hard) | Percent and Interest Problems

705-805 (Hard) | Percent and Interest Problems hide tags

Bunuel

04 May 2015, 04:29

26

9

6,965

by: bumpbot

01 Mar 2025, 08:32

ER

If set S = {7, y, 12, 8, x, 9}, is x + y less than 18?

555-605 (Medium) | Statistics and Sets Problems

555-605 (Medium) | Statistics and Sets Problems hide tags

Bunuel

14 Oct 2014, 06:11

26

7

9,674

by: bumpbot

14 Mar 2025, 10:06

ER

What is the value of integer n ? (1) n(n + 1) = 20 (2) 6!/(n!)(6-n)!

705-805 (Hard) | Combinations

705-805 (Hard) | Combinations hide tags

GMATinsight

08 Sep 2018, 05:24

26

9

4,313

by: bumpbot

20 Mar 2025, 04:30

ER

Is x > y ? (1) 9x = 4y (2) x > -y

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

MariaVorop

30 Mar 2015, 10:54

26

8

4,469

by: ManifestDreamMBA

21 Mar 2025, 11:33