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

488,558

by: bb

29 Aug 2025, 13:27

ER

Joseph had to type an article containing 10,000 words. How many minute

Sub 505 (Easy) | Work and Rate Problems

Sub 505 (Easy) | Work and Rate Problems hide tags

Bunuel

17 Mar 2017, 03:07

2

2,414

17 Apr 2022, 03:12

ER

Is ax = (7 + 5bx)/4 ? (1) x(4a - 5b) = 7 (2) a = 1

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

17 Jun 2018, 06:27

1

3

2,995

17 Apr 2022, 04:20

ER

A set of positive integers contains twice as many even integers as odd

805+ (Hard) | Multiples and Factors +2 tags

805+ (Hard) | Multiples and Factors, Number Properties, Probability hide tags

Bunuel

31 Aug 2015, 10:31

39

7

7,059

17 Apr 2022, 18:16

ER

Is x > 0? (1) |3x30|<20 (2) 3x 30 is greater than zero.

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

29 Apr 2016, 02:40

18

5

3,882

by: KarishmaB

17 Apr 2022, 22:02

ER

If r = (x+y)/2 and s = (x-y)/2, what is the value of r + s?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

11 Nov 2017, 07:39

4

2

2,544

18 Apr 2022, 10:03

ER

If xyz ≠ 0, is x^3 + y^3 + z^3 = 0?

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

Bunuel

11 Nov 2019, 04:53

17

2

3,896

18 Apr 2022, 12:34

ER

How many red balls are in the barrel?

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Bunuel

29 Mar 2017, 04:47

9

3

3,359

19 Apr 2022, 07:42

ER

If 5x + 10y = 65, what is the value of x? (1) x + y = 8 (2) x is an

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

02 May 2019, 06:33

2

4

2,473

19 Apr 2022, 08:50

ER

In the figure below, AB and BC are parallel to the X-axis and Y-axis,

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

07 Nov 2018, 02:04

7

3

2,957

20 Apr 2022, 00:40

ER

The hexagon ABCDEF is inscribed in the circle with center O. What is

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

05 Nov 2017, 01:57

1

3

4,645

20 Apr 2022, 01:00

ER

What is the value of x^5?

505-555 (Easy) | Algebra, Inequalities

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

Bunuel

23 Nov 2017, 05:51

5

3

2,381

by: PranavChadha

20 Apr 2022, 01:32

ER

In corporation X, the finance division has an average annual salary of

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

20 Apr 2022, 03:00

1

1,098

by: PyjamaScientist

20 Apr 2022, 03:12

ER

The figure above shows line l intersecting line m. What is the value

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

20 Apr 2022, 04:30

2

1,390

by: Arup04

20 Apr 2022, 09:45

ER

What is the value of x ? (1) (|x| - 1)(x - 2) = 0 (2) -1 ≤ x ≤ 1

505-555 (Easy) | Absolute Values, Algebra

505-555 (Easy) | Absolute Values, Algebra hide tags

Bunuel

07 Nov 2017, 23:50

5

6

5,015

20 Apr 2022, 10:19

ER

Is the value of a^3 + 3ab equal to 0? (1) a = 0 (2) b = 0

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

20 Apr 2022, 06:30

2

1,132

20 Apr 2022, 11:10

ER

What is the value of x? (1) |x+2| ≤ 4 (2) x^2 = 36

505-555 (Easy) | Absolute Values +2 tags

505-555 (Easy) | Absolute Values, Algebra, Inequalities hide tags

Bunuel

07 Nov 2017, 23:28

10

3

3,175

21 Apr 2022, 02:21

ER

If sequence S has 250 terms, what is the 243rd term of S ?

Sub 505 (Easy) | Sequences

Sub 505 (Easy) | Sequences hide tags

Bunuel

20 Nov 2017, 00:13

1

4

4,343

21 Apr 2022, 12:50

ER

Is the product of six consecutive positive integers a multiple of 576?

705-805 (Hard) | Multiples and Factors

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

Bunuel

21 Apr 2022, 01:30

1

3

2,027

22 Apr 2022, 01:37

ER

a and b are positive integers. What is the value of b?

555-605 (Medium) | Multiples and Factors

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

Bunuel

21 Apr 2022, 01:30

1

984

by: paulrahul

22 Apr 2022, 13:36

ER

If x ≠ y, is x + y = xy?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 Nov 2017, 09:39

9

5

7,469

23 Apr 2022, 05:56

ER

What is 2x ? (1) |2x – 2| + |2x + 2| = 4 (2) |3x – 1| + |3x + 1| = 6

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Bunuel

12 Jul 2019, 01:11

7

3

2,898

23 Apr 2022, 05:58

ER

Is y^2 = 0?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

11 Nov 2017, 09:34

1

2

3,043

23 Apr 2022, 09:46

ER

Is x equal to –1? (1) |3x – 2| + |3x + 2| = 6 (2) |x – 1| + |3x + 2| =

705-805 (Hard) | Absolute Values

705-805 (Hard) | Absolute Values hide tags

Bunuel

14 Jul 2019, 23:27

13

5

2,340

by: Zyanpandit25

23 Apr 2022, 21:53

ER

If Dr. Jones had started practicing medicine 12 years later than he

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

05 Apr 2017, 03:23

5

2

3,064

24 Apr 2022, 04:49

ER

Is 3^n > 2^k ? (1) k = n + 1 (2) n is a positive integer.

555-605 (Medium) | Exponents, Inequalities

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

Bunuel

03 Jan 2016, 13:51

12

9

4,003

24 Apr 2022, 06:51

ER

If n is a positive integer, what is the value of the hundreds digit of

555-605 (Medium) | Exponents +2 tags

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

Bunuel

19 Nov 2017, 23:40

17

7

4,150

24 Apr 2022, 07:39

ER

If x > 0, does f(x^2) = f(x)^2 ? (1) f(x) = x (2) x = 9

555-605 (Medium) | Algebra, Functions and Custom Characters

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

Bunuel

07 Mar 2016, 03:25

35

6

17,837

24 Apr 2022, 07:59

ER

If |m + 4| = 2, what is the value of m?

555-605 (Medium) | Absolute Values, Algebra

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

Bunuel

22 Oct 2016, 01:33

6

4

5,091

24 Apr 2022, 08:05

ER

If M and N are positive integers, is M divisible by N?

705-805 (Hard) | Multiples and Factors

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

Bunuel

22 Apr 2022, 01:30

3

2

2,022

24 Apr 2022, 21:39

ER

If the average (arithmetic mean) of three positive integers is 35, how

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

20 Apr 2022, 09:00

4

3

2,032

by: WizakoBaskar

24 Apr 2022, 22:42

ER

If x is a positive number is x^(1/2) an integer?

555-605 (Medium) | Algebra +3 tags

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

Bunuel

24 Apr 2022, 14:00

1

1,339

by: thkkrpratik

24 Apr 2022, 23:35

ER

If x^2 – y = w, what is the value of x? (1) w + y = 4 (2) y = 1

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

05 Jul 2018, 05:50

3

6

4,450

25 Apr 2022, 00:22

ER

When 15n where n is a positive integer, is divided by 6, the remainder

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

12 Nov 2017, 23:40

1

4

4,258

25 Apr 2022, 00:43

ER

What is the greatest common divisor of a + b and 4?

505-555 (Easy) | Multiples and Factors

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

Bunuel

25 Apr 2022, 01:30

2

1

902

25 Apr 2022, 03:12

ER

If x is a multiple of 3, is xy divisible by 48? (1) x is divisible by

505-555 (Easy) | Multiples and Factors

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

Bunuel

22 Apr 2022, 01:30

1

2

1,326

25 Apr 2022, 03:45

ER

What is the remainder when the sum of the positive integers x and y is

Sub 505 (Easy) | Remainders

Sub 505 (Easy) | Remainders hide tags

Bunuel

12 Nov 2017, 23:37

8

3

7,224

25 Apr 2022, 04:59

ER

What is the remainder when positive integer x is divided by 52?

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

Bunuel

12 Jun 2017, 02:35

17

6

5,387

25 Apr 2022, 06:50

ER

Is 1/m < 1/n ? (1) m - n = 3 (2) 3n = m + 2

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

24 Jun 2017, 12:49

5

4

3,334

25 Apr 2022, 10:14

ER

Is x divisible by y? (1) x leave the remainder 0 when divided by 6.

505-555 (Easy) | Multiples and Factors

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

Bunuel

26 Apr 2022, 01:30

1

1,131

26 Apr 2022, 03:38

ER

When positive integer n is divided by 7, the remainder is 2. What is

555-605 (Medium) | Multiples and Factors

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

Bunuel

26 Apr 2022, 01:30

5

1

1,214

26 Apr 2022, 03:46

ER

Is the positive integer x an even number? (1) If x is divided by 5

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

27 Apr 2022, 01:30

5

4

3,515

27 Apr 2022, 11:44

ER

If x and y are integers, is k the square of an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

27 Apr 2022, 02:30

2

1

1,286

27 Apr 2022, 12:00

ER

If a positive odd integer n has 8 positive factors, how many distinct

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

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

Bunuel

28 Apr 2022, 02:16

6

1

4,479

by: Nidzo

28 Apr 2022, 03:21

ER

If, for the 199192 academic year, Bill and his parents shared the ent

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

20 Apr 2022, 06:00

1

1,283

by: vivek1810971

28 Apr 2022, 09:15

ER

If p + q = 2r + 3, what is the value of p?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

14 Apr 2015, 05:03

3

5

5,704

28 Apr 2022, 09:32

ER

Given that (P + 2Q) is a positive number, what is the value of (P + 2Q

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

05 Mar 2015, 09:53

10

7

29,011

28 Apr 2022, 10:04

ER

Is the three-digit positive integer ABC divisible by 7?

705-805 (Hard) | Multiples and Factors

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

Bunuel

18 Nov 2020, 06:53

21

6

5,027

28 Apr 2022, 10:07

ER

Is xy a multiple of 48? (1) x is a multiple of 4 (2) y is a multiple

505-555 (Easy) | Multiples and Factors

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

Bunuel

09 Aug 2019, 02:20

2

4

3,059

28 Apr 2022, 10:56

ER

How much is Y percent of X?

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

20 Jul 2016, 11:47

3

3,248