GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

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Bunuel

25 Oct 2022, 08:11

189

15

89,245

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of June 2026

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1, 2

Bunuel

01 Jan 2026, 05:45

872

24

194,331

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

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bb

23 Aug 2026, 13:03

1.6k

1

496,497

by: bb

23 Aug 2026, 13:01

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

3,732

by: bumpbot

13 Nov 2018, 20:27

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

5,894

by: Bunuel

13 Nov 2018, 11:53

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

01 May 2026, 11:33

12

9

4,882

by: bumpbot

13 Nov 2018, 09:38

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

2,043

by: bumpbot

13 Nov 2018, 08:59

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

3,210

by: bumpbot

13 Nov 2018, 08:54

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

2,240

by: Archit3110

13 Nov 2018, 04:55

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

2,176

by: Archit3110

13 Nov 2018, 04:44

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

1,933

by: EgmatQuantExpert

13 Nov 2018, 04:38

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

5,263

by: mbaafter30

12 Nov 2018, 18:51

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

505-555 (Easy) | Coordinate Plane

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Bunuel

12 Nov 2018, 00:33

5

4

3,603

by: Gladiator59

12 Nov 2018, 03:45

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

Sub 505 (Easy) | Coordinate Plane

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Bunuel

12 Nov 2018, 00:37

1

2

1,798

by: Archit3110

12 Nov 2018, 03:10

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

3,048

by: Gladiator59

12 Nov 2018, 00:21

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

2,168

by: bumpbot

11 Nov 2018, 07:57

ER

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

555-605 (Medium) | Percent and Interest Problems

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Tan2017

30 Apr 2017, 23:59

11

3

2,478

by: bumpbot

11 Nov 2018, 02:27

ER

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

Sub 505 (Easy) | Fractions and Ratios

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ritumaheshwari02

19 Mar 2015, 05:38

6

3

21,176

by: bumpbot

10 Nov 2018, 15:38

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

1,481

by: GMAT215

10 Nov 2018, 10:37

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

1,459

by: GMAT215

10 Nov 2018, 10:34

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

1,343

by: vishalkazone

08 Nov 2018, 09:34

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

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

07 Nov 2018, 02:09

2

2,267

by: u1983

07 Nov 2018, 05:01

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

3,264

by: Nighat Bano

06 Nov 2018, 04:53

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

2,200

by: Mo2men

06 Nov 2018, 03:41

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

1,857

by: Mo2men

06 Nov 2018, 03:36

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

1,944

by: saurabh9gupta

06 Nov 2018, 02:16

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

2,112

by: fskilnik

05 Nov 2018, 19:53

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

2,100

by: BrentGMATPrepNow

05 Nov 2018, 11:33

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

1,610

by: martinod20

05 Nov 2018, 08:06

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

1,811

by: DavidTutorexamPAL

05 Nov 2018, 02:25

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

1,383

by: mcmoorthy

05 Nov 2018, 01:16

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

1,083

by: KSBGC

05 Nov 2018, 00:30

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

3,465

by: gmatexam439

02 Nov 2018, 04:12

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

6,205

by: Bunuel

02 Nov 2018, 02:31

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

1,521

by: ankitnoida2018

02 Nov 2018, 01:15

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

1,224

by: ankitnoida2018

02 Nov 2018, 00:57

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

1,160

by: Arushit

01 Nov 2018, 23:50

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

7,869

by: bumpbot

01 Nov 2018, 20:38

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

4,377

by: bumpbot

01 Nov 2018, 16:58

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

5,235

by: dollytaneja51

01 Nov 2018, 05:52

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

3,833

by: nkin

01 Nov 2018, 05:46

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

2,132

by: Bunuel

01 Nov 2018, 02:08

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

1,241

by: AnisMURR

01 Nov 2018, 01:03

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

1,943

by: GMATinsight

31 Oct 2018, 20:24

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

5,196

by: Salsanousi

31 Oct 2018, 13:55

ER

If xy 0, is x/y < 0?

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janani28

06 Oct 2014, 09:35

1

3

4,768

by: Carcass

31 Oct 2018, 11:44

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

3,760

by: vishalkazone

31 Oct 2018, 10:47

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

1,380

by: jorgetomas9

31 Oct 2018, 08:36

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

3,681

by: Gladiator59

30 Oct 2018, 10:11

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

2,364

by: GMATinsight

29 Oct 2018, 22:50

ER

Is x < 0 ? (1) x^2 < 0.5 (2) |x - 0.1| = 0.05

555-605 (Medium) | Absolute Values, Inequalities

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

AnisMURR

29 Oct 2018, 07:12

2

1,551

by: Archit3110

29 Oct 2018, 09:42

ER

N is a two-digit number, whose tens digit is 9. If the units digit of

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

EgmatQuantExpert

16 Dec 2016, 05:32

22

5

5,469

by: fskilnik

28 Oct 2018, 15:08

Ram can push a certain cart 4 times as fast as Rahim can. If they take

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

GMATBusters

27 Oct 2018, 10:14

1

1,595

by: TestTaker9

27 Oct 2018, 10:22