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

487,848

by: bb

29 Aug 2025, 13:27

ER

Is positive integer x prime?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

14 Aug 2017, 02:17

1

3

1,587

by: sun90

14 Aug 2017, 03:42

ER

If a and b are integers and a*b=2, is a>b?

605-655 (Medium) | Inequalities, Number Properties

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

chetan2u

15 Jul 2017, 21:54

4

2,105

by: stonecold

14 Aug 2017, 04:54

ER

There is a n-polygon, what is the value of n?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

MathRevolution

18 Feb 2016, 18:56

8

7

2,858

by: MathRevolution

14 Aug 2017, 11:03

ER

If x is an integer, is 9^x + 9^-^x = b ? (1) 3^x + 3^-^x = b

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TehJay

17 Sep 2010, 17:05

3

6

3,441

15 Aug 2017, 05:21

ER

If b is an integer, is a|a| < 2^b

555-605 (Medium) | Absolute Values +2 tags

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

harish1986

14 Oct 2015, 09:47

6

4

2,667

15 Aug 2017, 07:35

ER

p is an integer between 10 and 99. Is p less than 80?

605-655 (Medium) | Multiples and Factors, Number Properties

605-655 (Medium) | Multiples and Factors, Number Properties hide tags

Bunuel

26 May 2016, 11:11

9

5

3,493

17 Aug 2017, 06:35

ER

Is xy < 5 ? (1) x is prime and y is the reciprocal of a

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

surendar26

08 Dec 2010, 04:20

2

3,950

22 Aug 2017, 03:43

ER

What is the value of x?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

22 Aug 2017, 01:43

2

2,226

by: septwibowo

22 Aug 2017, 04:17

ER

What is the value of integer k?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

22 Aug 2017, 03:20

4

2,635

by: Luckisnoexcuse

23 Aug 2017, 03:22

ER

Is 70/7^n an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

chetan2u

03 May 2016, 04:48

4

2

2,010

24 Aug 2017, 07:22

ER

Is x = y?

555-605 (Medium) | Absolute Values, Algebra

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

Bunuel

14 Aug 2017, 06:18

3

5

2,235

by: ScottTargetTestPrep

24 Aug 2017, 13:36

ER

What is the remainder when the positive integer x is divided by 31?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

14 Aug 2017, 03:51

4

6

2,858

by: ScottTargetTestPrep

24 Aug 2017, 13:37

ER

Is x/y < 0?

505-555 (Easy) | Algebra, Inequalities

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

Bunuel

14 Aug 2017, 05:54

2

2,651

by: ScottTargetTestPrep

24 Aug 2017, 13:41

ER

Is x = 5?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

14 Aug 2017, 06:18

5

4

2,668

by: antztheman

26 Aug 2017, 03:35

ER

If x and y are positive integers and x < y, what is the value of x?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

28 Aug 2017, 04:03

2

9

2,086

28 Aug 2017, 21:41

ER

In how many ways can N! be written as the product of 2 integers?

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gmatsam123

29 Aug 2017, 21:38

2

1

1,804

29 Aug 2017, 21:48

ER

If x ≠ 0, is x > 1?

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

21 May 2017, 11:18

4

3

2,188

by: streetking

31 Aug 2017, 09:20

ER

If x is an integer, is y an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

banksy

03 Sep 2017, 06:44

2

4

6,489

03 Sep 2017, 06:43

ER

If a and b are positive integers, is 3a^2*b divisible by 60?

555-605 (Medium) | Multiples and Factors

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

Bunuel

20 Dec 2015, 06:00

5

4

4,423

by: septwibowo

05 Sep 2017, 07:59

ER

Rectangle ABCD is inscribed in circle P. What is the area of circle P?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

AccipiterQ

24 Feb 2018, 00:34

10

4

14,955

05 Sep 2017, 16:25

ER

If 5^m = 25^n, what is m?

505-555 (Easy) | Algebra, Exponents

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

Bunuel

03 Sep 2017, 06:19

2

1,728

by: Madhavi1990

06 Sep 2017, 13:18

ER

If E is the midpoint of AD, what is the length of EB?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

21 May 2017, 10:57

3

4

5,678

06 Sep 2017, 22:23

ER

How long is MN?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

31 Jan 2016, 08:19

4

2

1,981

06 Sep 2017, 23:40

ER

Is the product xy > 27?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

24 Jan 2016, 05:34

2

2,288

by: Nikkb

07 Sep 2017, 01:00

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

2,154

by: Nikkb

07 Sep 2017, 01:15

ER

If n is a positive integer, is n equal to 6?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

HKD1710

15 Jan 2017, 07:54

2

1,818

by: Nikkb

07 Sep 2017, 01:24

ER

Is x+y<180?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

MathRevolution

25 May 2016, 18:35

5

4

2,901

07 Sep 2017, 03:40

ER

A Wagstaff prime is a prime number p such that p =

705-805 (Hard) | Algebra, Exponents

705-805 (Hard) | Algebra, Exponents hide tags

pratikshr

12 Aug 2014, 06:03

20

17

5,004

by: cledgard

07 Sep 2017, 14:54

ER

ABC and AED are triangles with BC parallel to ED. Find the a

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

obs23

11 Oct 2013, 03:43

6

9

6,932

08 Sep 2017, 18:18

ER

If js – k = m, what is s? (1) ms = k (2) j/m = 4

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

07 Sep 2017, 23:59

2

3

2,140

by: Mo2men

09 Sep 2017, 05:07

ER

What is the perimeter of a certain right triangle?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

MathRevolution

06 Mar 2017, 01:13

3

6

1,973

by: MathRevolution

09 Sep 2017, 21:29

ER

If S is a data set of three numbers x, y and z, is the range of the nu

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

Bunuel

05 Sep 2017, 00:18

1

3

2,089

by: Mehemmed

10 Sep 2017, 01:01

ER

The function f is defined for all positive integers p by the following

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

10 Sep 2017, 04:56

2

2,021

by: pushkarajnjadhav

10 Sep 2017, 09:50

ER

If K = (1/(3a) + 1/b)/(5/(ab)) and ab ≠ 0, what is the value of K ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

18 Jun 2015, 02:53

5

3

3,924

10 Sep 2017, 13:31

ER

Does b^(1/3) = (2b - a)^(1/3)?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

10 Sep 2017, 21:56

2

1,632

by: reachskishore

12 Sep 2017, 09:08

ER

Is N=W ?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Poma777

30 Nov 2011, 19:54

15

6

4,754

by: BloomingLotus

12 Sep 2017, 09:12

ER

What is the value of b?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

12 Sep 2017, 05:21

2

2,157

by: sharadvatsey

12 Sep 2017, 14:33

ER

What is the value of x^2 – y^2 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 Sep 2017, 00:28

4

1,990

by: reachskishore

13 Sep 2017, 00:30

ER

Is p^2 > q^4 ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

13 Sep 2017, 00:02

5

2

1,933

by: niks18

13 Sep 2017, 10:59

ER

If y is negative, what is the value of x ?

605-655 (Medium) | Absolute Values, Algebra

605-655 (Medium) | Absolute Values, Algebra hide tags

Bunuel

12 Sep 2017, 05:08

2

4

2,739

by: MathRevolution

13 Sep 2017, 12:49

ER

If b is an integer what is the value of (4b + 1)/(2b) when rounded to

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

17 Sep 2017, 03:52

3

1,963

by: devanshu92

17 Sep 2017, 05:20

ER

If x ≠ –1 and y ≠ ±1, then what is the value of (xy)^2 − x^2/(x + 1)(y

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

28 May 2017, 01:47

2

3

2,543

by: niks18

19 Sep 2017, 08:53

ER

What is the value of (4a + 5)/a when rounded to the nearest integer?

555-605 (Medium) | Fractions and Ratios

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

Bunuel

19 Sep 2017, 01:29

2

2,253

by: souvonik2k

19 Sep 2017, 10:27

ER

What is the value of y?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

18 Sep 2017, 11:35

2

1,806

by: souvonik2k

19 Sep 2017, 11:11

ER

If x and y are integers, what is the ratio of 3y to x?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

01 Jun 2016, 04:32

4

10

4,186

21 Sep 2017, 10:58

ER

What is the value of x^2 – y^2 ?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

24 Jun 2017, 08:34

3

4

2,135

by: scabr

22 Sep 2017, 00:30

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

2,597

by: Mo2men

22 Sep 2017, 05:18

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

2,023

by: testcracker

23 Sep 2017, 22:59

ER

What is the value of a^4 – b^4 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

03 Sep 2017, 06:25

5

4

2,075

by: sasyaharry

24 Sep 2017, 11:08

ER

What is the value of positive number a?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

08 Dec 2016, 13:58

2

4

2,029