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

78,608

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

854

24

188,451

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

487,812

by: bb

29 Aug 2025, 13:27

ER

A room of height 10 feet and equal length and width has a cylindrical

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

12 Sep 2018, 00:43

6

10

2,293

by: GMATinsight

29 Oct 2018, 22:50

ER

In ΔPQR, what is the value of x?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

GMATBusters

30 Oct 2018, 08:07

4

1

3,567

by: Gladiator59

30 Oct 2018, 10:11

At a certain annual dance tournament, was the number of competitors

555-605 (Medium) | Statistics and Sets Problems

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

Abhi077

30 Oct 2018, 08:48

1

4

1,307

by: jorgetomas9

31 Oct 2018, 08:36

What is the area of rectangular floor X?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Carcass

31 Oct 2018, 10:38

3

2

3,661

by: vishalkazone

31 Oct 2018, 10:47

ER

If xy 0, is x/y < 0?

Poor Quality

Poor Quality hide tags

janani28

06 Oct 2014, 09:35

1

3

4,702

by: Carcass

31 Oct 2018, 11:44

In the figure above, if line l is parallel to line , what is the val

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

Carcass

31 Oct 2018, 12:26

1

5,064

by: Salsanousi

31 Oct 2018, 13:55

ER

If x^3 < x^2, is x < 0 ?

605-655 (Medium) | Absolute Values, Inequalities

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

AnisMURR

31 Oct 2018, 01:45

1

3

1,842

by: GMATinsight

31 Oct 2018, 20:24

ER

If xy = 6, is x < y? (1) y ≥ 3 (2) y ≤ 3

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

01 Nov 2018, 00:21

1

1,185

by: AnisMURR

01 Nov 2018, 01:03

ER

If ab ≠ 0, what is the value of 1/a + 1/b ? (1) a + b = -1 (2) ab = 6

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

01 Nov 2018, 00:06

1

2

2,043

by: Bunuel

01 Nov 2018, 02:08

What is the perimeter of rectangle R ? (1) R is a square. (2) The

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Carcass

01 Nov 2018, 05:04

1

3,704

by: nkin

01 Nov 2018, 05:46

ER

What is the tenths digit of the decimal d ?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Carcass

01 Nov 2018, 03:54

2

5,069

by: dollytaneja51

01 Nov 2018, 05:52

ER

Is |x| > |y|?

555-605 (Medium) | Absolute Values, Inequalities

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

anupamgreat

26 Aug 2014, 13:57

6

7

4,301

by: bumpbot

01 Nov 2018, 16:58

ER

If k is an integer, is k even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

18 Feb 2015, 04:47

12

17

7,749

by: bumpbot

01 Nov 2018, 20:38

ER

If a^2 − b = n, what is the value of a? (1) n + b = 4 (2) b = 1

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

01 Nov 2018, 00:07

2

1,097

by: Arushit

01 Nov 2018, 23:50

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If x/6 = y/3, is y = 10? (1) x + y = 30 (2) 3x = 60

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

29 Oct 2018, 04:59

3

1,161

by: ankitnoida2018

02 Nov 2018, 00:57

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If x + y = 2p and x − y = 2q, what is the value of (p + q)? (1) y = 8

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

29 Oct 2018, 04:58

2

1,461

by: ankitnoida2018

02 Nov 2018, 01:15

ER

In the figure above, a circle is inscribed in square WXYZ. What is the

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

06 Jun 2017, 11:27

4

6,124

by: Bunuel

02 Nov 2018, 02:31

ER

How many prime factors does N have?

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

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

piyush26

29 Oct 2018, 21:47

15

8

3,360

by: gmatexam439

02 Nov 2018, 04:12

ER

If xy < 2, is y < 1? (1) x > 2 (2) y < 3

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

05 Nov 2018, 00:12

2

1

1,026

by: KSBGC

05 Nov 2018, 00:30

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If x and y are integers, is x + y > 2? (1) x^2 < 1 (2) y < 1

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

05 Nov 2018, 00:20

2

1,311

by: mcmoorthy

05 Nov 2018, 01:16

ER

If x and y are positive, is 3x > 8y? (1) x − y > 4 (2) x > 14y/5

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

05 Nov 2018, 00:23

1

1,730

by: DavidTutorexamPAL

05 Nov 2018, 02:25

ER

If x and y are integers, is x > 0? (1) x + y > 60 (2) y > 58

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

05 Nov 2018, 00:11

2

4

1,538

by: martinod20

05 Nov 2018, 08:06

ER

If x is positive, is x^2 < x? (1) 1/10 < x < 2/5 (2) x^3 < x^2

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

05 Nov 2018, 00:13

3

2,021

by: BrentGMATPrepNow

05 Nov 2018, 11:33

ER

If the total price for n copies of a book is $31.5, what is the per

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

gmatretest

07 Mar 2016, 01:45

1

3

2,051

by: fskilnik

05 Nov 2018, 19:53

ER

In the figure below, PQRS is a rectangle. What is the area of the semi

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

06 Nov 2018, 01:36

1

1,862

by: saurabh9gupta

06 Nov 2018, 02:16

ER

If x ≠ 0, is x^2 < |x|? (1) x < 1 (2) x > −1

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

05 Nov 2018, 00:17

1

2

1,772

by: Mo2men

06 Nov 2018, 03:36

ER

If x > 0, is y > 0? (1) 2y < 7x (2) y > −x

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

05 Nov 2018, 00:18

1

2

2,122

by: Mo2men

06 Nov 2018, 03:41

ER

In the parallelogram ABCD shown below, what is the value of x?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

06 Nov 2018, 01:43

6

3

3,187

by: Nighat Bano

06 Nov 2018, 04:53

ER

In the XY-plane, does the point (m, n) lie below the line y = x?

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

Bunuel

07 Nov 2018, 02:09

2

2,190

by: u1983

07 Nov 2018, 05:01

ER

Set A and Set B both include 10 distinct terms. Is Standard deviation

505-555 (Easy) | Statistics and Sets Problems

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

GMATinsight

08 Nov 2018, 06:48

3

2

1,270

by: vishalkazone

08 Nov 2018, 09:34

ER

A circular pipe falls from the back of a truck and rolls. If the pipe

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

02 Sep 2018, 22:10

1

2

1,397

by: GMAT215

10 Nov 2018, 10:34

ER

If circles A and B are concentric, what is the ratio of the area of th

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

02 Sep 2018, 22:09

1

2

1,413

by: GMAT215

10 Nov 2018, 10:37

ER

If the ratio x: y:z is 3:5:7, what is the value of z

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

ritumaheshwari02

19 Mar 2015, 05:38

6

3

21,092

by: bumpbot

10 Nov 2018, 15:38

ER

In a thoroughly blended mix of chocolate and vanilla, what is

555-605 (Medium) | Percent and Interest Problems

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

Tan2017

30 Apr 2017, 23:59

11

3

2,385

by: bumpbot

11 Nov 2018, 02:27

ER

Is the radius of circle with center O an integer?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

21 Aug 2017, 23:38

2

4

2,103

by: bumpbot

11 Nov 2018, 07:57

ER

In the XY-plane, the point (a, b) lies on a circle with centre at the

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Bunuel

12 Nov 2018, 00:16

3

1

2,958

by: Gladiator59

12 Nov 2018, 00:21

ER

In the XY-plane, what is the slope of line m?

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

Bunuel

12 Nov 2018, 00:37

1

2

1,738

by: Archit3110

12 Nov 2018, 03:10

ER

In the XY-plane, the line with equation ax + by + c = 0, where abc ≠ 0

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Bunuel

12 Nov 2018, 00:33

5

4

3,476

by: Gladiator59

12 Nov 2018, 03:45

ER

In PQR, what is the measure of angle P?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

GMATBusters

01 Nov 2018, 07:57

2

5,128

by: mbaafter30

12 Nov 2018, 18:51

ER

What is the slope of line m ? (1) The points (1,5) and (5,−7) lie on

Sub 505 (Easy) | Coordinate Plane

Sub 505 (Easy) | Coordinate Plane hide tags

Bunuel

13 Nov 2018, 00:42

3

1,867

by: EgmatQuantExpert

13 Nov 2018, 04:38

ER

The greatest number in a set of 4 numbers is 70. What is the average

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

13 Nov 2018, 02:06

3

2,098

by: Archit3110

13 Nov 2018, 04:44

ER

If x&y = x^2 − 2y, what is the value of a&2 ?

555-605 (Medium) | Functions and Custom Characters

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

Bunuel

13 Nov 2018, 02:13

1

4

2,145

by: Archit3110

13 Nov 2018, 04:55

ER

If X is a set of four numbers, a, b, c, and d, is the range of the num

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

12 Jan 2015, 11:07

12

9

3,118

by: bumpbot

13 Nov 2018, 08:54

ER

What is the value of a + b ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

03 Sep 2017, 06:26

8

4

1,975

by: bumpbot

13 Nov 2018, 08:59

ER

The table above shows quantities of the mobile phone models sold by a

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

16 Jul 2015, 01:33

12

9

4,775

by: bumpbot

13 Nov 2018, 09:38

ER

Is 3^(x+2)/9 >1 ? (1) 9^x > 1 (2) x > 0

555-605 (Medium) | Exponents, Inequalities

555-605 (Medium) | Exponents, Inequalities hide tags

metallicafan

26 Jun 2012, 12:25

8

9

5,759

by: Bunuel

13 Nov 2018, 11:53

ER

In the fraction a/b, where a and b are positive integers, what is the

655-705 (Hard) | Fractions and Ratios

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

Bunuel

11 Jan 2015, 12:24

11

8

3,643

by: bumpbot

13 Nov 2018, 20:27

ER

A new students joins a class, which has average weight 40 kg. By what

555-605 (Medium) | Statistics and Sets Problems

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

GMATinsight

08 Nov 2018, 06:59

6

4

2,278

by: storm1327

13 Nov 2018, 22:43

ER

If a bicycle has two wheels one twice as wide as the other, at how man

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

12 Sep 2018, 00:23

6

3

1,962

by: Kezia9

14 Nov 2018, 07:50

ER

Two intersecting lines form four angles. Are the lines

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

arjtryarjtry

26 Jul 2008, 01:52

6

3

5,139

by: bumpbot

14 Nov 2018, 17:14