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

491,464

by: bb

29 Aug 2025, 13:27

ER

Is y an integer? (1) When y is divided by two, the result is the squar

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

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

Bunuel

31 Dec 2017, 12:18

8

5

3,030

06 May 2023, 13:29

ER

Is a positive integer x divisible by 12? (1) x is divisible by 8

505-555 (Easy) | Multiples and Factors

505-555 (Easy) | Multiples and Factors hide tags

Bunuel

27 Apr 2023, 10:30

1

1,158

by: hloonker

07 May 2023, 02:21

ER

What is x ? (1) x^2 - 1 = x + 1 (2) x + 3 is a prime number

605-655 (Medium) | Algebra, Number Properties

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

Bunuel

14 Aug 2017, 09:22

9

8

5,219

by: Bunuel

07 May 2023, 06:59

ER

In the figure above, △IGH is inscribed in △ABC in such a way that HG||

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

05 Oct 2020, 03:30

7

2

2,191

08 May 2023, 03:01

ER

Is the length of rectangular field F greater than the length of rectan

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

26 Apr 2019, 07:16

19

6

10,121

08 May 2023, 06:52

ER

Is x > 1? (1) 1/x < 1 (2) x > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

08 May 2023, 03:30

1

794

08 May 2023, 10:08

ER

What is the value of (p - q)(p + q) ?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

08 May 2023, 09:30

1

1,141

08 May 2023, 10:27

ER

Is x = y? (1) x^4 + y^4 = 2x^2y^2 (2) x^4 + y^4 = 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

09 May 2023, 03:30

1

813

by: mcmoorthy

09 May 2023, 05:58

ER

If a, b and c are integers, is 3c/2 an integer?

555-605 (Medium) | Multiples and Factors

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

Bunuel

09 May 2023, 01:30

2

1

1,076

by: szcz

09 May 2023, 06:05

ER

If a and b are integers, is b/a even? (1) b/a^2 is odd. (2) a is ev

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

09 May 2023, 01:30

3

2

1,184

by: szcz

09 May 2023, 06:10

ER

Is a^2 < 7a 1? (1) a > 0 (2) a > 7

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

08 May 2023, 01:30

1

2

1,032

09 May 2023, 08:50

ER

In the xy-plane, line k intercepts x-axis at (a, 0) and y-axis at (b,

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

03 Oct 2019, 03:04

4

3

3,827

09 May 2023, 09:44

ER

What was the average number of miles per gallon of gasoline consumed

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

11 Sep 2017, 00:31

2

7

3,093

by: jim441

09 May 2023, 11:27

ER

Is |x^2| - |y^2| = |x^2–y^2| ? (1) x > 0 (2) y < 0

655-705 (Hard) | Absolute Values, Inequalities

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

Bunuel

06 Nov 2019, 02:06

11

5

4,859

by: Fdambro294

09 May 2023, 18:52

ER

X and Y, two computer engineers, built identical websites at different

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

06 Nov 2019, 02:21

11

5

4,639

by: Fdambro294

09 May 2023, 19:13

ER

What is the value of 1/k + 1/r ? (1) k + r = 20 (2) kr = 64

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

23 Sep 2018, 21:15

10

5

7,349

09 May 2023, 23:20

ER

A florist found that 60% of his customers on Valentine's Day bought ro

805+ (Hard) | Statistics and Sets Problems

805+ (Hard) | Statistics and Sets Problems hide tags

Bunuel

06 Nov 2019, 02:23

22

7

4,567

by: SCismynightmare

10 May 2023, 01:18

ER

What is the value of (x - y)^2 - (x + y)^2 ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

09 May 2023, 06:30

2

1,312

by: Sristishaw

10 May 2023, 03:13

ER

In the above triangle, if AB = 6, what is the length of AD ?

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

Bunuel

02 Dec 2019, 00:34

6

7

2,830

10 May 2023, 03:42

ER

Is a^b > 0? (1) a is positive (2) b is a prime number

505-555 (Easy) | Exponents, Inequalities

505-555 (Easy) | Exponents, Inequalities hide tags

Bunuel

10 May 2023, 03:30

2

1

1,152

10 May 2023, 04:20

ER

How many of the 60 balls in the basket are green?

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

Bunuel

10 May 2023, 01:30

1

1,528

by: szcz

10 May 2023, 06:13

ER

If n is positive integer, is 35 a factor of n?

555-605 (Medium) | Multiples and Factors

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

Bunuel

10 May 2023, 09:30

1

958

10 May 2023, 12:34

ER

What is the value of |m - n|? (1) m and n are integers (2) mn = 13

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Bunuel

10 May 2023, 06:30

1

1,378

10 May 2023, 12:42

ER

If the ratio of the number of men to the number of women is the same

555-605 (Medium) | Fractions and Ratios

555-605 (Medium) | Fractions and Ratios hide tags

Bunuel

01 Jan 2021, 09:45

5

3

2,637

10 May 2023, 22:26

ER

In the equation x^2 - bx + c = 0, b and c are constants. What is the

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

10 Dec 2017, 01:04

7

4

5,170

11 May 2023, 02:55

ER

If x and y are integers, is xy an even integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

11 May 2023, 03:30

1

1,193

by: ChandlerBong

11 May 2023, 07:06

ER

If (x a)(x b) = 0, is b = s? (1) s < a (2) s is a root of x^2

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

11 May 2023, 01:30

4

1

1,026

by: Nabneet

11 May 2023, 07:43

ER

What is the fraction of oil in the solution?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

11 May 2023, 01:30

2

1

1,098

by: BrushMyQuant

11 May 2023, 09:21

ER

The interest paid by Red State Reserve Bank is three times the interes

655-705 (Hard) | Percent and Interest Problems

655-705 (Hard) | Percent and Interest Problems hide tags

Bunuel

10 Jun 2018, 04:47

3

2

2,281

11 May 2023, 09:38

ER

If n is positive integer, is 21 a factor of n ?

555-605 (Medium) | Multiples and Factors

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

Bunuel

09 May 2023, 09:30

1

942

by: BrushMyQuant

11 May 2023, 09:57

ER

Is 0 between x and y? (1) x - y > 0 (2) x^2 - y^2 > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

11 May 2023, 09:30

1

942

11 May 2023, 12:50

ER

Is x > 0 ? (1) x = |x| (2) x^2 - x = 0

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Bunuel

11 May 2023, 06:30

2

1,003

11 May 2023, 13:11

ER

If n is a positive integer, is n(n^2 - 1) divisible by 42?

555-605 (Medium) | Multiples and Factors

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

Bunuel

12 May 2023, 03:06

2

1,745

by: Archit3110

12 May 2023, 07:04

ER

If a and b are prime numbers, is ab even?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

12 May 2023, 01:30

1

2,146

by: Archit3110

12 May 2023, 07:42

ER

If p is a positive integer and r is a negative integer, what is the va

705-805 (Hard) | Exponents, Number Properties

705-805 (Hard) | Exponents, Number Properties hide tags

Bunuel

07 Jan 2021, 09:51

3

2

1,952

12 May 2023, 08:56

ER

If (|x| - 2)(x -1) = 0, then x = ? (1) x > 0 (2) -1 x 1

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

12 May 2023, 06:30

4

2

1,391

12 May 2023, 22:24

ER

Does x^2 + px + q = 0 have a root? (1) p < 0 (2) q < 0

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

12 May 2023, 03:30

2

1,341

by: TheBipedalHorse

13 May 2023, 06:26

ER

Is x greater than 3.25?

505-555 (Easy) | Fractions and Ratios, Number Properties

505-555 (Easy) | Fractions and Ratios, Number Properties hide tags

Bunuel

28 Feb 2016, 09:50

14

3

5,413

by: Engineer1

13 May 2023, 08:35

ER

(x1)(1y)=? (1) x+y=xy (2) xy=0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

12 May 2023, 01:30

1

1,043

by: Gauravji21

13 May 2023, 08:42

ER

If x and y are integers, what are the values of x and y?

505-555 (Easy) | Algebra, Exponents

505-555 (Easy) | Algebra, Exponents hide tags

Bunuel

12 May 2023, 09:30

1

1,325

by: gmattyfatty

13 May 2023, 15:11

ER

If a and b are non-zero single digit integers such that a^b = 1, what

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

Bunuel

07 Nov 2019, 03:17

40

10

6,706

by: Fdambro294

13 May 2023, 23:49

ER

Is quadrilateral ABCD a square? (1) A = C = 90º (2) AB = AD

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

14 Feb 2018, 03:44

60

9

9,357

14 May 2023, 07:07

ER

If x dollars are placed in a savings account that earns y% annual inte

655-705 (Hard) | Percent and Interest Problems

655-705 (Hard) | Percent and Interest Problems hide tags

Bunuel

07 Nov 2019, 03:19

18

8

5,519

14 May 2023, 23:32

ER

If a and b are two numbers such that a*b = 10, is a an integer ?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

14 Dec 2020, 01:15

8

6

2,424

15 May 2023, 05:47

ER

Are integers r and s consecutive ? (1) r is odd and s is even.

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

15 Oct 2022, 08:34

1

2,592

by: $!vakumar.m

15 May 2023, 10:13

ER

If R, S, & T are numbers on the number line, not necessarily in that

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Bunuel

26 Sep 2018, 05:29

3

2,829

15 May 2023, 11:03

ER

What is the value of 1 - c - d ? (1) c + d = -1 (2) c = -1 - d

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

15 May 2023, 06:30

1

1,008

15 May 2023, 13:23

ER

If x and y are integers greater than 1 and x>y, what are the values of

555-605 (Medium) | Multiples and Factors

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

Bunuel

30 Apr 2023, 06:30

1

1,250

15 May 2023, 20:44

ER

If nk 0, n is what percent of k? (1) k = 0.2n (2) (k + n)/n = 1.2

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

Bunuel

26 Apr 2023, 06:30

1

1,268

15 May 2023, 21:09

ER

If x, y are positive integers, is xy = 1? (1) x^2y^2 = xy (2) 1/y = x

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

25 Apr 2023, 10:30

1

1,301