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

79,453

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

188,936

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

488,608

by: bb

29 Aug 2025, 13:27

ER

If m and n are positive integers, is m/n < 3/7 ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

21 Mar 2018, 05:39

2

1,209

by: Madhavi1990

27 Mar 2018, 00:51

ER

If X and Y are non-zero integers, Is X/Y >= 5/7 ? (1) X^3 >= 125

655-705 (Hard) | Algebra, Inequalities

655-705 (Hard) | Algebra, Inequalities hide tags

amanvermagmat

12 Mar 2018, 04:51

1

2

1,317

by: EgmatQuantExpert

19 Mar 2018, 12:32

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The figure shows all the available routes between stations A and C

655-705 (Hard) | Geometry, Inequalities

655-705 (Hard) | Geometry, Inequalities hide tags

Asifpirlo

15 Mar 2018, 23:22

6

3

3,509

by: bumpbot

15 Mar 2018, 23:18

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V1, V2 are two rectangular tanks. Is total surface area of V1 < V2?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

amanvermagmat

14 Mar 2018, 23:36

2

1

1,246

by: DavidTutorexamPAL

15 Mar 2018, 02:51

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Is |x| + |y| = 0 (1) x + 2|y| = 0 (2) y + 2|x| = 0

655-705 (Hard) | Absolute Values, Algebra

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

Bunuel

05 Mar 2018, 09:45

3

4

2,011

by: rohail7869

12 Mar 2018, 05:18

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If a is a positive number less than 10, is c greater than the average

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

08 Jan 2018, 23:39

1

3

2,034

by: chetan2u

04 Mar 2018, 08:41

ER

If a is a positive number less than 10, is c greater than the average

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

08 Jan 2018, 23:38

2

1,545

by: dineshril

03 Mar 2018, 10:14

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If a < b < c < d, is abcd > 0? (1) abc > 0 (2) bcd < 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

29 Dec 2016, 11:56

5

6

3,564

by: bumpbot

27 Feb 2018, 09:55

ER

If the average (arithmetic mean) of positive integers x and y is a pos

655-705 (Hard) | Multiples and Factors

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

Bunuel

08 Jan 2018, 23:40

3

1,892

by: Bunuel

11 Feb 2018, 08:21

ER

If A, B and C are distinct points, do line segments AB and BC have the

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

metallicafan

04 Jul 2012, 17:22

14

13

8,620

by: amanvermagmat

09 Feb 2018, 22:58

ER

If a^5+7a+2b+b^2 is even and a and b are integers, is

655-705 (Hard) | Algebra, Number Properties

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

chetan2u

08 Feb 2018, 19:28

3

2

1,503

by: amanvermagmat

08 Feb 2018, 22:50

ER

Is x is divisible by 25? (1) x^2 is a multiple of 50 (2) x^3 is

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

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

GMATinsight

05 Feb 2018, 07:11

4

3

1,447

by: jrk23

05 Feb 2018, 08:28

ER

If x < 20, How many distinct factors does odd number x have? 1) 16x

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

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

GMATinsight

23 Jan 2018, 03:58

7

17

4,095

by: amanvermagmat

23 Jan 2018, 23:19

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Is x greater than x^3? (1) x is negative. (2) x^2 - x^3 > 2

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

19 Jan 2018, 10:57

2

3

2,069

by: MathRevolution

22 Jan 2018, 23:05

ER

If 6 positive integers have a sum less than 10, what is the value of

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

09 Jan 2018, 23:38

3

2,177

by: chetan2u

11 Jan 2018, 08:24

ER

If a is a positive number less than 10, is c greater than the average

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

09 Jan 2018, 23:39

1

1,768

by: amanvermagmat

10 Jan 2018, 00:33

ER

On the x-y coordinate plane, a point (1,2) is on a parabola y=ax^2+bx+

655-705 (Hard) | Functions and Custom Characters

655-705 (Hard) | Functions and Custom Characters hide tags

MathRevolution

31 Jan 2016, 21:39

10

4

3,607

by: luffy_ueki

02 Jan 2018, 22:13

ER

If r and s are consecutive even integers, is r greater than s ?

655-705 (Hard) | Inequalities, Number Properties

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

Bunuel

17 Dec 2017, 01:35

3

8

3,341

by: Bunuel

28 Dec 2017, 07:28

ER

For a certain set of n numbers, where n > 2, is the average (arithmeti

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

24 Dec 2017, 01:23

1

1,574

by: niks18

24 Dec 2017, 05:08

ER

if | r | != 1 is integer r even 1 r is not positive 2 2r

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

rxs0005

16 Apr 2014, 01:13

6

11

4,284

by: bumpbot

21 Dec 2017, 14:06

ER

Can a circle be drawn so that its circumference includes all four vert

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Sajjad1994

21 Dec 2017, 03:33

2

1,619

by: DavidTutorexamPAL

21 Dec 2017, 10:31

ER

Is a < -1?

655-705 (Hard) | Absolute Values, Inequalities

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

chetan2u

02 Nov 2017, 09:51

3

5

2,519

by: amanvermagmat

11 Dec 2017, 05:44

ER

Are x and y both negative? (1) 3x - 3y = 1 (2) x/y < 1

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

26 Nov 2017, 23:27

2

5

2,465

by: amanvermagmat

28 Nov 2017, 23:24

ER

If the Perimeter of Quadrilateral ABCD is P then find P? 1) The maxim

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

GMATinsight

18 Nov 2017, 05:33

5

2

2,531

by: amanvermagmat

27 Nov 2017, 23:34

ER

ab = 0?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Creeper300

07 Nov 2010, 13:49

11

3

4,475

by: MathRevolution

24 Nov 2017, 16:25

ER

The vertices of a triangle are on points A(a,b), B(2,2)

655-705 (Hard) | Coordinate Plane, Geometry

655-705 (Hard) | Coordinate Plane, Geometry hide tags

kenguva

30 Jan 2012, 03:35

7

5

4,453

by: bumpbot

30 Oct 2017, 16:10

ER

Is x greater than 2? (You may assume y is not equal to zero.)

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

22 Oct 2017, 06:50

6

2,261

by: PK32

25 Oct 2017, 10:37

ER

If x is a two-digit number (so x = ba with b and a digits), what is th

655-705 (Hard) | Fractions and Ratios

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

Bunuel

22 Oct 2017, 06:37

2

5

2,248

by: reachskishore

24 Oct 2017, 00:03

ER

Is a/b < 2?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Creeper300

07 Nov 2010, 13:41

3

2

3,294

by: bumpbot

19 Oct 2017, 04:08

ER

In the figure above, if DE is parallel to , what is the sum

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

banksy

15 Feb 2011, 08:04

3

4

5,074

by: bumpbot

18 Oct 2017, 08:35

ER

What is the value of |x - y|?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

10 Oct 2017, 00:55

3

2,207

by: shushman14

11 Oct 2017, 13:53

ER

If the product of 7 consecutive integers is not zero, is the product

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

05 Oct 2017, 04:47

2

6

2,462

by: pra1785

11 Oct 2017, 10:38

ER

Is the area of the triangle ABC ≥ 24 ? 1) Two of the Sides of the tri

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

GMATinsight

08 Oct 2017, 21:36

1

1,717

by: jedit

08 Oct 2017, 21:56

ER

If x is an integer, is (3x - y)^(1/2) = (2x - 2y)^(1/2) ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

02 Oct 2017, 00:01

5

2,155

by: Raksat

07 Oct 2017, 10:25

ER

Does (x^2 - y^2)^(1/2) = x + y?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

02 Oct 2017, 23:50

4

2

1,959

by: kaulshanx

07 Oct 2017, 09:30

ER

Does b = 2b - a ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

02 Oct 2017, 23:49

2

5

2,164

by: Shobhit7

05 Oct 2017, 21:34

ER

If a and b are integers, Is b = 0? (1) a = ab – 1 (2) a is NOT equa

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

GMATinsight

03 Oct 2017, 00:35

1

2

1,630

by: Nikkb

03 Oct 2017, 00:52

ER

Is xy = x^2 ? (1) x + y < 0 (2) xy < 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

24 Sep 2017, 23:53

2

6

2,201

by: kunalsinghNS

25 Sep 2017, 02:57

ER

Is (6a + x^2)^(1/2) = a + x?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

10 Sep 2017, 21:53

2

4

2,040

by: testcracker

23 Sep 2017, 22:59

ER

Is 10x > x^10 ? (1) x is a positive number. (2) x^2 – 1 < 0

655-705 (Hard) | Exponents, Inequalities

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

Bunuel

21 Sep 2017, 05:03

3

6

2,614

by: Mo2men

22 Sep 2017, 05:18

ER

Is x+y<180?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

MathRevolution

25 May 2016, 18:35

5

4

2,917

by: bumpbot

07 Sep 2017, 03:40

ER

Which is greater, cf or fg?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

24 Jan 2016, 06:16

1

2

2,173

by: Nikkb

07 Sep 2017, 01:15

ER

N is an integer. Is N negative ?

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

guerrero25

18 Jun 2013, 15:49

10

11

3,182

by: akshayk

12 Aug 2017, 05:42

ER

Two Tangent circles A and B have radii r1 and r2, respectively. What

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

21 Jan 2015, 02:46

42

15

12,437

by: Samuelboyle96

09 Aug 2017, 14:19

ER

If a and b are odd natural numbers, is 7/2 + a/2 + b/3 an integer?

655-705 (Hard) | Multiples and Factors

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

Gnpth

04 Aug 2017, 09:21

1

1,484

by: IanStewart

04 Aug 2017, 09:43

ER

If x and y are positive integers, is the number (x^2 + 3x + y^2) even?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

30 Jul 2017, 22:46

2

1,547

by: mohshu

31 Jul 2017, 09:51

ER

What is the value of x? (1) |y| ≤ −3x (2) |5x − 1| = x + 7

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

24 Jul 2017, 23:22

5

9

2,546

by: mehrotrayashraj

29 Jul 2017, 07:13

ER

In the diagram below, P = g + c − e and Q = a + f . What is the value

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

17 Jul 2017, 23:28

2

6

2,487

by: Shobhit7

25 Jul 2017, 01:34

ER

The area of a rectangular lot is 900 feet. What is the

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

metallicafan

09 Mar 2012, 09:26

6

2

3,837

by: IdiomSavant

12 Jul 2017, 14:51

ER

Is (a^2 + b^2)^1/2 an integer

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

jedit

05 Jul 2017, 00:14

4

2

2,171

by: jedit

05 Jul 2017, 00:00