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

78,762

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

856

24

188,548

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

487,977

by: bb

29 Aug 2025, 13:27

ER

If x is an integer, what is the value of x?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

srujani

01 Jul 2013, 22:09

18

9

7,416

by: Bunuel

27 Jun 2025, 01:07

ER

Mark biked from his house to his friend's house in how many

555-605 (Medium) | Distance and Speed Problems

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

elegan

09 Dec 2024, 05:44

18

11

7,902

by: bumpbot

23 Jun 2025, 21:42

ER

If S is a set of integers and 5 is in S, is every multiple

655-705 (Hard) | Statistics and Sets Problems

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

tingjojo

17 May 2011, 06:59

18

10

6,348

by: bumpbot

22 Jun 2025, 19:43

ER

If M and N are positive integers greater than 1, what is the remainder

655-705 (Hard) | Exponents, Remainders

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

Kritisood

12 Apr 2020, 08:12

18

8

4,164

by: bumpbot

01 Jun 2025, 02:20

ER

A coal company can choose to transport coal to one of its customers by

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

13 Sep 2022, 02:04

18

4

11,049

by: kcbavana

07 May 2025, 20:01

ER

If the capacity of tank X is less than the capacity of tank Y and both

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

23 May 2020, 06:31

18

11

10,165

by: bumpbot

21 Apr 2025, 00:58

ER

Set S contains five different positive integers a, b, c, d, and e, whe

805+ (Hard) | Statistics and Sets Problems

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

Raksat

07 Aug 2018, 10:32

18

11

3,568

by: bumpbot

20 Apr 2025, 21:51

ER

Emiliana paid a total of $77.00 for an item, which included the price

655-705 (Hard) | Percent and Interest Problems

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

GMATNinja

16 Feb 2024, 00:48

18

2

2,357

by: bumpbot

14 Apr 2025, 09:13

ER

Is (x + y)^(1/2) an integer? (1) x^3 = 64 (2) x^2 = y – 3

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

HariS1992

03 Oct 2018, 00:10

18

8

9,577

by: bumpbot

05 Apr 2025, 23:43

ER

If the tick marks shown on the line above are equally spaced, what is

655-705 (Hard) | Graphs and Illustrations

655-705 (Hard) | Graphs and Illustrations hide tags

Bunuel

30 Aug 2019, 06:29

18

2

5,730

by: bumpbot

26 Mar 2025, 03:25

ER

What distance did Jane travel? (1) Bill traveled 40 miles in 40 minute

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

Bunuel

23 Sep 2018, 21:17

18

4

10,384

by: bumpbot

25 Mar 2025, 09:23

ER

If x and y are non-zero integers, Is x < y ? (1) x = 1y2 (2) x + y = 0

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Kritisood

23 May 2020, 10:48

18

6

2,595

by: bumpbot

17 Mar 2025, 08:35

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If n is an integer, is n/7 an integer? (1) 3n/7 is an integer (2) 5n/7

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

03 Oct 2018, 04:02

18

9

12,033

by: bumpbot

16 Mar 2025, 07:17

ER

Set S has six numbers and their average (arithmetic mean) is 32. What

655-705 (Hard) | Statistics and Sets Problems

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

MathRevolution

03 May 2017, 02:29

18

7

3,839

by: anirchat

02 Feb 2025, 07:19

ER

Let x and y be two distinct digits in the decimal x.yx, what is x?

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

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

Bunuel

15 Jan 2017, 09:19

18

3

3,457

by: bumpbot

01 Feb 2025, 09:35

ER

An artist creates mosaics using stone tiles provided by his clients.

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

22 Sep 2021, 02:00

18

6

3,846

by: hr1212

26 Jan 2025, 04:29

ER

If Mary always takes the same route to work, how long did it take Mary

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

NoHalfMeasures

18 Jan 2016, 02:16

18

3

10,153

by: GGGMAT2

23 Jan 2025, 22:39

ER

If n, m, and p are distinct, five-digit positive integers and if p = n

705-805 (Hard) | Fractions and Ratios

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

Bunuel

16 Aug 2019, 02:08

18

9

3,328

by: bumpbot

07 Jan 2025, 02:55

ER

At the beginning of the day, a pet store had dogs and cats in the rati

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

Bunuel

08 Jul 2017, 05:25

18

14

7,543

by: hr1212

27 Dec 2024, 08:02

ER

The sum of the terms of a geometric progression is 2047.

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

Gnpth

11 Aug 2017, 09:17

18

6

8,189

by: bumpbot

27 Dec 2024, 04:26

ER

If there are 15 children in a gym class and 2 children are to be

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Abhi077

14 Oct 2018, 03:13

18

6

5,813

by: bumpbot

22 Dec 2024, 01:09

ER

12 Days of Christmas GMAT Competition - Day 4: A jar contains only red

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

19 Dec 2024, 09:00

18

6

4,646

by: Lizaza

20 Dec 2024, 00:22

ER

If x and y are positive integers greater than 2

805+ (Hard) | Exponents, Number Properties

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

gmatophobia

27 Apr 2023, 13:33

18

4

2,440

by: Bunuel

03 Dec 2024, 01:17

ER

Is |x - 3| < 7 ? (1) x > 0 (2) x < 10

505-555 (Easy) | Absolute Values, Inequalities

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

Bunuel

23 May 2020, 07:46

18

9

6,105

by: bumpbot

22 Nov 2024, 03:51

ER

What is the numerical value of 1/a + 1/b + 1/c ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

BeavisMan

03 Sep 2010, 19:18

18

13

34,012

by: bumpbot

21 Nov 2024, 06:26

ER

How many of the numbers x, y, and z are positive if each of

655-705 (Hard) | Arithmetic, Number Properties

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

Carcass

12 Jun 2013, 03:50

18

9

14,611

by: bumpbot

29 Oct 2024, 23:37

ER

If A and B are positive integers, does A have more prime factors

705-805 (Hard) | Multiples and Factors

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

stonecold

22 Nov 2016, 08:24

18

7

3,102

by: bumpbot

21 Oct 2024, 15:31

ER

If z is a non-negative integer, is 75/(z + 1) an integer?

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

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

Bunuel

04 Dec 2020, 05:53

18

7

5,866

by: bumpbot

20 Oct 2024, 04:08

ER

Does ab= a^2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

jsphcal

18 Dec 2012, 22:51

18

8

8,335

by: bumpbot

15 Oct 2024, 21:28

ER

What is the value of x^2 - y^2? (1) x + y = 0 (2) x - y = 2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

SergeNew

02 Jan 2011, 14:08

18

5

7,057

by: bumpbot

15 Oct 2024, 21:15

ER

A cube is painted with blue and red color such that each color is pain

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

pran21

02 Sep 2014, 04:05

18

6

22,040

by: bumpbot

30 Sep 2024, 04:42

ER

If both x and y are positive integers that are divisible by

655-705 (Hard) | Multiples and Factors

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

Berbatov

17 Sep 2012, 08:24

18

16

13,945

by: bumpbot

24 Sep 2024, 21:36

ER

The students in a certain college class took a midterm exam and

605-655 (Medium) | Percent and Interest Problems

605-655 (Medium) | Percent and Interest Problems hide tags

Bunuel

01 Apr 2024, 01:30

18

2

3,358

by: siddhantvarma

24 Sep 2024, 08:01

ER

P, Q, R, S, and T represent five distinct points on the circumference

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

10 Apr 2020, 03:58

18

3

8,237

by: bumpbot

22 Sep 2024, 21:36

ER

What is the remainder when a positive integer t is divided by 15?

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

akurathi12

06 Jan 2019, 04:25

18

5

5,909

by: bumpbot

19 Sep 2024, 00:44

ER

All attendees at a university gathering are faculty or alumni of the u

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

24 Sep 2015, 22:57

18

6

5,772

by: bumpbot

17 Sep 2024, 04:32

ER

If n is a positive integer, what is the remainder when (7^n + 5) is di

605-655 (Medium) | Exponents, Remainders

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

Bunuel

31 Aug 2020, 00:13

18

6

8,718

by: bumpbot

14 Sep 2024, 09:53

ER

12 Days of Christmas GMAT Competition - Day 2: P is a positive integer

655-705 (Hard) | Multiples and Factors

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

Bunuel

15 Dec 2021, 07:00

18

6

6,072

by: bumpbot

19 Aug 2024, 10:25

ER

If a and b are positive, is a^(b/2) > a^(2b? (1) 1 < b < b^a (2) a < b

705-805 (Hard) | Exponents, Inequalities

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

Bunuel

10 Feb 2023, 15:16

18

3

3,868

by: bumpbot

13 Aug 2024, 10:16

ER

Company R's annual profit has increased by a constant amount each cale

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

26 Jun 2018, 06:19

18

6

8,820

by: bumpbot

30 Jul 2024, 00:24

ER

If a, b and c are integers, is (a·b) a multiple of 18?

655-705 (Hard) | Multiples and Factors

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

Bunuel

12 Mar 2021, 01:15

18

5

5,840

by: bumpbot

01 Jul 2024, 20:15

ER

If n is a positive integer, does n have four or more distinct factors?

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

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

Bunuel

02 Mar 2022, 08:30

18

5

4,222

by: bumpbot

29 Jun 2024, 15:36

ER

Is x an integer greater than 1?

805+ (Hard) | Inequalities, Number Properties

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

1, 2

duahsolo

30 Jan 2017, 09:20

18

22

6,754

by: bumpbot

16 Jun 2024, 04:00

ER

The three digit positive integer N = a2b is both a multiple

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

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

gmattokyo

25 Feb 2014, 07:25

18

10

5,814

by: bumpbot

13 Jun 2024, 10:07

ER

If positive integers x and y are NOT multiples of 11, do they leave th

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

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

Bunuel

22 Dec 2020, 01:15

18

10

4,043

by: Fdambro294

12 Jun 2024, 21:27

ER

A box contains only white balls, red balls and green balls. What is th

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Bunuel

30 Mar 2015, 05:44

18

9

13,866

by: bumpbot

06 Jun 2024, 20:35

ER

Is m a multiple of 6? (1) More than 2 of the first 5 positive integer

705-805 (Hard) | Multiples and Factors

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

Bunuel

01 May 2019, 03:37

18

11

5,609

by: bumpbot

27 May 2024, 22:45

ER

Is x/3 an integer?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

dimitri92

19 May 2010, 01:49

18

10

7,416

by: Kinshook

23 May 2024, 22:32

ER

If x, y, and z are 3 positive consecutive integers such that x < y < z

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

Bunuel

27 Oct 2014, 08:27

18

5

8,980

by: bumpbot

22 May 2024, 10:52

ER

Is a product of three integers xyz a prime?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

11 Apr 2018, 09:02

18

3

4,882

by: bumpbot

17 May 2024, 17:34