Data Sufficiency (DS)

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,004

by: bb

29 Aug 2025, 13:27

ER

A researcher collected n readings from a scientific experiment. Is the

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

06 Sep 2019, 10:55

3

2

1,051

by: Bunuel

09 Sep 2019, 03:10

ER

Is a > b ? (1) The arithmetic mean of a and b is 25. (2) The geometric

555-605 (Medium) | Statistics and Sets Problems

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

Sajjad1994

06 Sep 2019, 07:33

1

1,583

by: firas92

09 Sep 2019, 00:48

ER

In triangle PQR, if PQ = x, QR = x + 3, and PR = y, which one of the

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

06 Sep 2019, 10:55

1

1,358

by: firas92

09 Sep 2019, 00:43

ER

If y = –x, then is y > –1 ? (1) x^4 > x^2 (2) x^3 < x^2

605-655 (Medium) | Exponents, Number Properties

605-655 (Medium) | Exponents, Number Properties hide tags

Sajjad1994

06 Sep 2019, 06:29

1

1,420

by: ccooley

08 Sep 2019, 12:31

ER

What is the value of x + y^2 ? (1) x + y = 7 (2) x^2 + y^2 = 25

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Sajjad1994

06 Sep 2019, 07:24

1

2

1,504

by: ccooley

08 Sep 2019, 12:20

ER

What number is 25 percent of x ? (1) 50 percent of x is 50. (2) 9/100

Sub 505 (Easy) | Percent and Interest Problems

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

Sajjad1994

06 Sep 2019, 06:47

1

2

1,706

by: ccooley

08 Sep 2019, 12:14

ER

Is x^3 – 6x2 + 11x – 6 > 0? (1) 2 < x < 3 (2) 1 ≤ x < 2

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

12 Jul 2019, 02:25

4

6

1,642

by: stne

08 Sep 2019, 04:37

ER

If q > 1, what is the value of integer q?

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

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

Bunuel

25 Dec 2016, 02:35

20

12

3,532

07 Sep 2019, 09:42

ER

Which one of the expressions x^2y and x^2/y is greater? (1) y > x (2)

655-705 (Hard) | Algebra, Inequalities

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

Sajjad1994

05 Sep 2019, 06:17

1

3

1,721

by: Sajjad1994

07 Sep 2019, 08:19

ER

What is the value of (x + 3y - 10z)/(a + 3b - 10c) ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

06 Sep 2019, 10:51

4

1

1,249

07 Sep 2019, 02:10

ER

Is m^2n + mn^2 = 0 ?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

14 Jul 2015, 00:55

23

18

5,003

07 Sep 2019, 01:56

ER

Is (a - b) + (c - b)/d > 0 ? (1) a + c < 2b (2) d < 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

06 Sep 2019, 10:56

3

1

1,599

07 Sep 2019, 00:01

ER

Is (x – 2)(x – 3) > 0 ? (1) x < 2 (2) x < 3

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

06 Sep 2019, 10:56

2

1

734

06 Sep 2019, 23:44

ER

If x^2 – y^2 = 15, is x + y > x – y ? (1) x – y = 5 (2) x + y = 3

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

06 Sep 2019, 10:56

2

1,229

by: Kinshook

06 Sep 2019, 19:35

ER

In the figure, is the quadrilateral ABCD a square? (1) x = y = z = p

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

06 Sep 2019, 10:55

1

948

06 Sep 2019, 12:33

ER

What is the average score of the test takers on a test? (1) Exactly ha

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

06 Sep 2019, 10:56

1

1,508

06 Sep 2019, 11:50

ER

Is x > y ? (1) x = y + 1 (2) x + y = 1

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

06 Sep 2019, 10:56

1

787

06 Sep 2019, 11:42

ER

What is the area of the equilateral triangle shown in the figure?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

06 Sep 2019, 10:56

1

895

06 Sep 2019, 11:35

ER

If the value of (x – y)(x + y) is 15, then what is the value of x/y ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

06 Sep 2019, 10:56

1

1,268

06 Sep 2019, 11:27

ER

What is the value of ab + bc ? (1) b = a + c (2) b = 3

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

06 Sep 2019, 10:57

1

1,398

06 Sep 2019, 11:23

ER

In figure, ABC is a triangle. What is the length of side AB ?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

06 Sep 2019, 10:57

1

1,535

06 Sep 2019, 11:17

ER

Is x = y ? (1) (x + y)(1/x + 1/y) = 4 (2) x – 100 = y – 100

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

06 Sep 2019, 10:55

1

1,324

06 Sep 2019, 11:11

ER

Is the product of two numbers x and y a prime number?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

06 Sep 2019, 11:00

1

1,348

by: charlie23

06 Sep 2019, 11:11

ER

Is x greater than y ? (1) x = 2y (2) y = 2k

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Sajjad1994

06 Sep 2019, 06:26

1

1,294

by: Bombsante

06 Sep 2019, 10:07

ER

On each lab that René completed he received either 100 points or 85 po

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

14 Apr 2015, 04:49

9

11

5,536

06 Sep 2019, 04:24

ER

If a and b are integers and |b| < a, is (a^2 + b^2)^(1/2) =

805+ (Hard) | Absolute Values +2 tags

805+ (Hard) | Absolute Values, Algebra, Number Properties hide tags

freedom128

09 Sep 2019, 04:07

8

6

2,177

by: Prasannathawait

05 Sep 2019, 05:04

ER

If b does not equal 0, what is the value of 4a/(3b)?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

04 Sep 2019, 23:14

3

8

2,669

by: exc4libur

05 Sep 2019, 03:59

ER

What is the volume of the solid if e

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

EncounterGMAT

04 Sep 2019, 22:39

2

3

1,594

by: Archit3110

05 Sep 2019, 01:28

ER

What is the value of x? (1) 5x - 3 = 7 (2) x/10 = 1/5

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

GMATBusters

04 Dec 2018, 07:10

5

4,288

by: TheNightKing

04 Sep 2019, 17:06

ER

If a, b, and c are consecutive 2-digit positive integers in that order

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

MathRevolution

09 Aug 2018, 01:30

8

6

1,829

04 Sep 2019, 11:58

ER

Is the positive Integer x a perfect square? 1) Sum of all factors of

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

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

GMATinsight

19 Jan 2018, 07:30

6

3,529

by: CrackverbalGMAT

03 Sep 2019, 23:22

ER

How long does it take to drive from the factory to the warehouse?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

02 Sep 2019, 23:19

5

10

2,336

by: Archit3110

03 Sep 2019, 22:38

ER

What is the value of x^3 + y^3?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

vikasp99

21 Feb 2017, 19:58

4

3

4,964

03 Sep 2019, 09:48

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

4,512

03 Sep 2019, 06:32

ER

For a charity, each of m people pledged to run 25 kilometers in a fund

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Sajjad1994

29 Aug 2019, 06:28

3

2

1,152

by: Sajjad1994

03 Sep 2019, 05:39

ER

Mr Tolstoy bought 100 CDs at $x and sold them at $y. Did Mr

555-605 (Medium) | Percent and Interest Problems

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

udaymathapati

31 Oct 2010, 06:19

2

6

4,031

03 Sep 2019, 03:35

ER

What is the equation of the line L?

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

vaibhav1221

02 Sep 2019, 00:14

4

12

2,731

by: vanam52923

02 Sep 2019, 23:10

ER

Is the probability of choosing a student in class X who has scored

655-705 (Hard) | Fractions and Ratios, Probability

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

chetan2u

27 Nov 2017, 09:12

6

2,894

by: prakhar992

02 Sep 2019, 10:18

ER

What is 20 percent of x? (1) Sixty percent of 50/x is less than 2x.

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Sajjad1994

29 Aug 2019, 01:17

2

6,564

02 Sep 2019, 02:43

ER

If p, q and r are digits, is (p + q + r) a multiple of 9? (1) The thr

555-605 (Medium) | Multiples and Factors

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

Bunuel

12 Aug 2019, 01:21

2

5

2,371

by: MathRevolution

31 Aug 2019, 17:29

ER

If ab >0, is (ab)^2 < (ab)^(1/2) ?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

Abhi077

16 Feb 2019, 03:18

9

5

2,645

by: exc4libur

31 Aug 2019, 09:32

ER

How many integers are there between integers i and k, inclusive?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

29 Aug 2019, 23:39

4

10

4,719

by: Bunuel

31 Aug 2019, 07:24

ER

Is s = r?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

11 Aug 2016, 06:57

6

5

4,649