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

178

15

79,033

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,703

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

488,235

by: bb

29 Aug 2025, 13:27

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

5,820

by: bumpbot

13 Jun 2024, 10:07

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

6,764

by: bumpbot

16 Jun 2024, 04:00

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

4,232

by: bumpbot

29 Jun 2024, 15:36

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

5,843

by: bumpbot

01 Jul 2024, 20:15

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

8,833

by: bumpbot

30 Jul 2024, 00:24

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

3,876

by: bumpbot

13 Aug 2024, 10:16

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

6,089

by: bumpbot

19 Aug 2024, 10:25

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

8,733

by: bumpbot

14 Sep 2024, 09:53

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

5,781

by: bumpbot

17 Sep 2024, 04:32

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

5,913

by: bumpbot

19 Sep 2024, 00:44

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

8,249

by: bumpbot

22 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

3,368

by: siddhantvarma

24 Sep 2024, 08:01

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

13,959

by: bumpbot

24 Sep 2024, 21:36

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

22,056

by: bumpbot

30 Sep 2024, 04:42

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

7,066

by: bumpbot

15 Oct 2024, 21:15

ER

Does ab= a^2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

jsphcal

18 Dec 2012, 22:51

18

8

8,340

by: bumpbot

15 Oct 2024, 21:28

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

5,873

by: bumpbot

20 Oct 2024, 04:08

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

3,103

by: bumpbot

21 Oct 2024, 15:31

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

14,621

by: bumpbot

29 Oct 2024, 23:37

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

34,040

by: bumpbot

21 Nov 2024, 06:26

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

6,110

by: bumpbot

22 Nov 2024, 03:51

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

2,451

by: Bunuel

03 Dec 2024, 01:17

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

4,659

by: Lizaza

20 Dec 2024, 00:22

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

5,828

by: bumpbot

22 Dec 2024, 01:09

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

8,207

by: bumpbot

27 Dec 2024, 04:26

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

7,553

by: hr1212

27 Dec 2024, 08:02

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

3,330

by: bumpbot

07 Jan 2025, 02:55

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

10,164

by: GGGMAT2

23 Jan 2025, 22:39

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

3,864

by: hr1212

26 Jan 2025, 04:29

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

3,463

by: bumpbot

01 Feb 2025, 09:35

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

3,841

by: anirchat

02 Feb 2025, 07:19

ER

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

12,043

by: bumpbot

16 Mar 2025, 07:17

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

2,599

by: bumpbot

17 Mar 2025, 08:35

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

10,399

by: bumpbot

25 Mar 2025, 09:23

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

5,742

by: bumpbot

26 Mar 2025, 03:25

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

9,588

by: bumpbot

05 Apr 2025, 23:43

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

2,366

by: bumpbot

14 Apr 2025, 09:13

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

3,575

by: bumpbot

20 Apr 2025, 21:51

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

10,187

by: bumpbot

21 Apr 2025, 00:58

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

11,075

by: kcbavana

07 May 2025, 20:01

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

4,176

by: bumpbot

01 Jun 2025, 02:20

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

6,365

by: bumpbot

22 Jun 2025, 19:43

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

7,906

by: bumpbot

23 Jun 2025, 21:42

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

7,425

by: Bunuel

27 Jun 2025, 01:07

ER

12 Days of Christmas GMAT Competition - Day 7: P is a positive integer

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

20 Dec 2021, 07:00

18

7

4,767

by: bumpbot

10 Jul 2025, 23:06

ER

If printing press A, running alone at its constant rate, produces 27,0

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

17 Sep 2020, 01:40

18

9

10,334

by: bumpbot

18 Jul 2025, 11:00

ER

A number is to be written in each of the small squares in the figure

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

23 May 2020, 08:36

18

8

7,877

by: bumpbot

24 Jul 2025, 06:13

ER

Rosy and Daisy bought some books, pens, and pencils. Out of the total

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Nums99

29 May 2024, 01:28

18

3

3,706

by: bumpbot

29 Jul 2025, 19:52

ER

There are 5 integers such that the difference of the biggest number an

705-805 (Hard) | Statistics and Sets Problems

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

BillyZ

27 Mar 2017, 17:59

18

4

2,818

by: bumpbot

31 Jul 2025, 20:05

Grocery store's profit equals sales minus the cost and taxes

555-605 (Medium) | Percent and Interest Problems

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

GMATBaumgartner

28 Aug 2012, 23:04

18

5

10,265

by: bumpbot

19 Aug 2025, 15:05