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

179

15

79,413

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

858

24

188,924

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

488,597

by: bb

29 Aug 2025, 13:27

Is the positive integer X a prime number? (1) X is a factor of anothe

555-605 (Medium) | Multiples and Factors

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

amanvermagmat

06 Aug 2018, 10:52

2

1,502

by: bumpbot

02 Aug 2022, 18:23

ER

Is x^2+2x+1=y^2+2y+1?

705-805 (Hard) | Algebra, Inequalities

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

chetan2u

06 Aug 2018, 04:57

21

13

3,817

by: bumpbot

24 Dec 2023, 08:10

What is the value of p + q + r

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Poor Quality hide tags

gsingh0711

09 Aug 2018, 08:31

17

14

9,739

by: PKN

09 Aug 2018, 22:41

Soni and Misha are exchanging stamps with each other. At the start, So

805+ (Hard) | Arithmetic, Word Problems

805+ (Hard) | Arithmetic, Word Problems hide tags

amanvermagmat

05 Aug 2018, 05:31

6

2

1,884

by: bumpbot

12 Dec 2024, 23:26

Two tanks T1 and T2 have a capacity of 1500 litres and 2000 litres res

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

amanvermagmat

05 Aug 2018, 05:03

8

4

2,846

by: bumpbot

08 Mar 2020, 09:05

ER

What is the probability that Lee will make exactly 5 errors on

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Bunuel

04 Aug 2018, 09:42

245

15

29,368

by: bumpbot

11 Oct 2025, 05:02

If x and y are non zero numbers less than 1 is (y^4 - x^4)>(y^3 - x^5)

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

a70

14 Aug 2018, 04:16

54

11

8,209

by: bumpbot

26 Oct 2024, 01:26

ER

What is the average (arithmetic mean) annual salary of the 6 employees

605-655 (Medium) | Statistics and Sets Problems

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

1, 2

Bunuel

03 Aug 2018, 11:13

210

20

51,789

by: bumpbot

16 Jan 2026, 10:18

ER

Of the total number of copies of Magazine X sold last week, 40 percent

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

03 Aug 2018, 10:42

60

17

24,814

by: bumpbot

03 Apr 2026, 22:46

ER

Yesterday between 9:00 a.m. and 6:00 p.m. at Airport X, all flights to

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

03 Aug 2018, 10:40

158

19

29,082

by: bumpbot

05 Jan 2026, 04:31

ER

The figure above shows Line L, Circle 1 with center at C1, and Circle

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

03 Aug 2018, 10:38

199

15

25,569

by: egmat

20 Jan 2023, 06:11

ER

Working together, Rafael and Salvador can tabulate a certain set of da

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

1, 2

Bunuel

03 Aug 2018, 10:35

254

31

40,886

by: Vineet1102

13 Jul 2025, 22:10

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If x and y are integers with y > 0, is x positive ?

505-555 (Easy) | Absolute Values, Inequalities

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

Bunuel

03 Aug 2018, 10:12

11

6

6,121

by: chaitralirr

30 Mar 2020, 23:49

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Is |p + 2| - p > 5? (1) |p| < 2 (2) p > p^2

655-705 (Hard) | Absolute Values, Inequalities

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

a70

03 Aug 2018, 10:14

30

11

7,146

by: bumpbot

10 Sep 2025, 04:31

ER

For all integers i, f(i) = i(i-1). What is the value of f(x)?

705-805 (Hard) | Algebra, Functions and Custom Characters

705-805 (Hard) | Algebra, Functions and Custom Characters hide tags

Helium

03 Aug 2018, 09:12

3

5

2,196

by: bumpbot

18 Jul 2023, 16:26

ER

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

505-555 (Easy) | Absolute Values

505-555 (Easy) | Absolute Values hide tags

Bunuel

03 Aug 2018, 05:26

179

11

29,190

by: bumpbot

05 Sep 2025, 16:15

ER

When a positive integer n is divided by 3, what is the remainder?

505-555 (Easy) | Remainders

505-555 (Easy) | Remainders hide tags

MathRevolution

03 Aug 2018, 02:06

10

3

7,661

by: bumpbot

29 Apr 2024, 22:28

ER

How many members of a certain legislature voted against the measure to

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

03 Aug 2018, 00:00

167

13

45,446

by: exdolore

03 Dec 2025, 23:46

ER

If k and ℓ are lines in the xy-plane, is the slope of k less than the

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

02 Aug 2018, 23:58

264

16

31,996

by: bumpbot

15 May 2024, 11:08

ER

The symbol represents which one of the following operations: additio

555-605 (Medium) | Functions and Custom Characters

555-605 (Medium) | Functions and Custom Characters hide tags

Bunuel

02 Aug 2018, 23:49

66

11

19,951

by: bumpbot

16 May 2023, 07:17

ER

Company X's profits this year increased by 25% over last year's profit

555-605 (Medium) | Percent and Interest Problems, Word Problems

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

1, 2

Bunuel

02 Aug 2018, 23:42

179

20

30,646

by: Bunuel

14 May 2026, 10:14

ER

In the xy-plane, circle C has center (1,0) and radius 2. If line k is

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

02 Aug 2018, 23:38

132

4

39,830

by: bumpbot

03 Oct 2025, 04:53

ER

In a school that had a total of 600 students enrolled in the junior

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

02 Aug 2018, 23:36

133

13

25,997

by: bumpbot

29 Mar 2026, 21:51

ER

Is the integer p even? (1) The integer p^2 + 1 is odd. (2) The integer

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

02 Aug 2018, 04:59

13

15,418

by: totaltestprepNick

23 Feb 2026, 13:41

ER

In each quarter of 1998, Company M earned more money than in the

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

02 Aug 2018, 04:57

29

8

15,005

by: bumpbot

20 Dec 2025, 13:26

ER

If M is a set of consecutive even integers, is 0 in set M ?

Sub 505 (Easy) | Sequences

Sub 505 (Easy) | Sequences hide tags

Bunuel

02 Aug 2018, 04:55

23

4

13,362

by: bumpbot

30 Oct 2024, 08:58

ER

Does 2x + 8 = 12 ? (1) 2x + 10 = 14 (2) 3x + 8 = 14

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

02 Aug 2018, 04:52

7

6

28,576

by: bumpbot

30 Oct 2024, 08:55

ER

Triangle ABC has vertices A(3,0) , B(6,0) and C(a,b)

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Amankatyal

02 Aug 2018, 02:59

7

4

4,097

by: bumpbot

01 Oct 2023, 13:34

ER

Is ABCD a rectangle? (1) ∠ADC = 90° (2) AD = BC

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

02 Aug 2018, 01:33

5

4

4,536

by: bumpbot

03 Sep 2019, 06:32

ER

If ABCE is a rectangle, is the area of AED greater than the area of

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

02 Aug 2018, 01:03

3

4,719

by: bumpbot

21 Nov 2022, 04:09

ER

If the average (arithmetic mean) height of Bob, John and Tom is 180 cm

555-605 (Medium) | Statistics and Sets Problems

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

MathRevolution

02 Aug 2018, 00:39

10

4

2,818

by: bumpbot

16 Apr 2025, 04:34

ER

If n is a positive integer, what is the greatest common factor

805+ (Hard) | Multiples and Factors, Number Properties

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

Mo2men

01 Aug 2018, 20:50

66

9

9,415

by: bumpbot

30 Jul 2025, 03:06

ER

What is the value of x? (1) x^4 = 2,401 (2) x^5 = 16,807

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

01 Aug 2018, 05:25

7

13

4,272

by: chetan2u

12 Aug 2018, 01:49

ER

If m and n are positive integers, what is the remainder when m is divi

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

Princ

01 Aug 2018, 05:08

14

4

3,743

by: bumpbot

09 Sep 2023, 21:59

ER

What is the value of x? (1) x^2 - 5x + 6 = x - 3 (2) 3x - (3 + y) = 2x

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

01 Aug 2018, 05:08

2

3,268

by: AyushCrackVerbal

19 May 2019, 18:59

ER

Is the positive integer x prime?

555-605 (Medium) | Multiples and Factors

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

Bunuel

31 Jul 2018, 22:03

25

6

5,298

by: bumpbot

22 Jun 2025, 11:02

ER

What is the greatest integer factor of x if both x and y are integers?

655-705 (Hard) | Multiples and Factors

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

Bunuel

31 Jul 2018, 22:02

14

6

5,328

by: bumpbot

16 Jul 2025, 11:18

ER

If x is an integer greater than 1, is y divisible by x?

655-705 (Hard) | Multiples and Factors

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

Bunuel

31 Jul 2018, 22:01

18

6

5,459

by: bumpbot

18 Oct 2023, 19:29

ER

If x ≠ 0, does x have an odd number of factors?

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

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

Bunuel

31 Jul 2018, 22:00

35

12

6,808

by: bumpbot

12 Mar 2025, 13:50

ER

In a carnival game, players try to toss marbles in to a milk jug. One

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

31 Jul 2018, 21:44

13

10

5,456

by: bumpbot

10 Feb 2026, 11:34

ER

A survey is done in am office among 120 people to know how many of the

805+ (Hard) | Overlapping Sets, Probability

805+ (Hard) | Overlapping Sets, Probability hide tags

a70

14 Aug 2018, 04:15

38

7

8,444

by: bumpbot

22 Oct 2024, 06:42

ER

While making a non-stop trip, a bus averaged m mph for the first 5

655-705 (Hard) | Distance and Speed Problems

655-705 (Hard) | Distance and Speed Problems hide tags

EgmatQuantExpert

11 May 2026, 04:40

12

3

4,563

by: bumpbot

18 May 2025, 10:06

ER

If ABC is a right-angled triangle, what is the measure

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

chetan2u

30 Jul 2018, 19:26

1

2

1,402

by: CounterSniper

31 Jul 2018, 03:17

ER

Given that x is a real number, is −1 < x < 3? (1) | |x − 1| − 1 | < 1

655-705 (Hard) | Absolute Values, Inequalities

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

gsingh0711

30 Jul 2018, 20:44

35

7

6,302

by: bumpbot

10 Jan 2024, 04:01

ER

Boat World sells a certain boat and a certain trailer. What is the pri

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

30 Jul 2018, 06:09

3

4

3,644

by: BrentGMATPrepNow

08 Aug 2021, 07:23

ER

A certain hospital has 400 patients, who are classified in one of two

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

30 Jul 2018, 06:04

4

3,048

by: Nikhil

30 Jul 2018, 06:20

ER

How many shirts does Phil own? (1) 12 of Phil's shirts are dress shirt

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

Bunuel

30 Jul 2018, 05:56

3

6

4,098

by: bumpbot

08 Jul 2025, 23:25

ER

Is x > y? (1) |x| >|y| (2) 1/4 x + 1/3 y > 0

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

GMATbuster92

29 Jul 2018, 08:27

44

5

6,091

by: bumpbot

23 Mar 2024, 09:15

ER

The "spin" of any two-digit number is defined as double the amount of

555-605 (Medium) | Multiples and Factors

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

Princ

29 Jul 2018, 01:27

3

1,982

by: SaquibHGMATWhiz

08 Dec 2022, 23:58

ER

If x and y are integers, is x + y even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

emanresu1

28 Jul 2018, 21:33

35

8

19,579

by: bumpbot

23 Dec 2023, 20:47