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

488,477

by: bb

29 Aug 2025, 13:27

ER

Is a + b = 0?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

16 Jul 2017, 23:14

3

2,112

30 Oct 2022, 09:10

ER

If y and z are positive integers, is yz a multiple of 64?

605-655 (Medium) | Multiples and Factors, Roots

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

Bunuel

24 Feb 2020, 03:45

15

3

5,642

02 Nov 2022, 13:26

ER

Is h t > 0 ? (1) 10 < t < 6 (2) 5 < h < 2

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

da2897

02 Nov 2022, 09:53

1

3

2,065

by: av1901

03 Nov 2022, 09:24

ER

Is x greater than zero?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

29 Oct 2017, 01:44

3

4,696

05 Nov 2022, 04:30

ER

If n is an integer, is n odd? (1) n/3 is divisible by 3 (2)

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

TheUltimateWinner

23 Jan 2020, 09:16

2

3

2,139

by: chetan2u

05 Nov 2022, 05:06

ER

In a certain law firm there are five senior partners and five junior..

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

GKomoku

09 Apr 2020, 11:41

10

3

4,049

05 Nov 2022, 21:09

ER

Does a = 0? (1) a^3 = a^4 (2) ab ≠ b

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

25 Sep 2017, 00:07

1

3

1,827

08 Nov 2022, 00:49

ER

Is x < 1.2?

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

Russ19

18 Sep 2021, 10:04

12

3

2,343

08 Nov 2022, 07:28

ER

If z~ denotes the greatest integer less than or equal to z, is z~ = 1

555-605 (Medium) | Functions and Custom Characters

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

Bunuel

25 May 2022, 01:30

2

3

1,654

by: GMATCoachBen

10 Nov 2022, 23:24

ER

If the area of the circle above with center O is 64π, what is the area

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

30 Apr 2019, 01:43

3

2,754

by: ScottTargetTestPrep

14 Nov 2022, 11:56

ER

Is x an integer ? (1) x/3 is an integer (2) 3x is an integer

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

06 Dec 2016, 07:07

2

3

6,559

15 Nov 2022, 02:08

ER

If N is an integer, is 2N a multiple of 7? (1) N - 7 is a multiple of

505-555 (Easy) | Multiples and Factors

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

Bunuel

28 Apr 2022, 02:35

3

4,380

by: Stanindaw

15 Nov 2022, 04:56

ER

Is x < 0 ? (1) x^5 < x^6 (2) 5^x > 6^x

505-555 (Easy) | Exponents, Inequalities

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

Bunuel

15 Nov 2022, 02:30

4

3

1,394

15 Nov 2022, 05:20

ER

Mrs. Brown is dividing 50 students into 3 groups for a class project.

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

15 Jan 2020, 02:20

3

3,925

by: ScottTargetTestPrep

16 Nov 2022, 14:50

ER

If a, b, and c are prime numbers, what is the value of c?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

17 Nov 2022, 10:55

3

1,289

17 Nov 2022, 13:24

ER

Is a two-digit number XY even? (1) LCM of X and Y is even (2) X is ev

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

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

Bunuel

10 Nov 2022, 13:15

3

1,136

17 Nov 2022, 22:40

ER

Given a quadrilateral ABCD with angle ABC = 90. Is angle BCD = 90?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

06 Oct 2021, 02:30

4

3

3,735

19 Nov 2022, 04:05

ER

If ABCE is a rectangle, is the area of AED greater than the area of

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

02 Aug 2018, 01:03

3

4,718

21 Nov 2022, 04:09

ER

If B is a positive integer such that the difference between its only t

505-555 (Easy) | Multiples and Factors, Number Properties

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

rencsee

10 Oct 2018, 02:04

1

3

1,881

21 Nov 2022, 13:44

ER

If n and k are a positive integer, what is the remainder when 3^(4n +

555-605 (Medium) | Exponents, Remainders

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

Bunuel

22 Nov 2022, 02:30

6

3

1,219

22 Nov 2022, 07:46

ER

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

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

02 May 2018, 01:33

2

3

2,876

22 Nov 2022, 10:29

ER

If n is a positive integer is n equal to 100?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

18 Nov 2022, 09:06

3

2,171

by: sumit99kr

23 Nov 2022, 03:52

ER

If 0 < x < 1, is the tenth digit of x nonzero?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

23 Nov 2022, 02:30

1

3

1,317

23 Nov 2022, 14:01

ER

If m is a two-digit positive integer and 2*m is a three-digit positive

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

24 Nov 2022, 02:30

3

1,513

by: rahulgG

24 Nov 2022, 23:29

ER

If x and y are positive integers, is y!/x! an integer?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

25 Nov 2022, 02:30

2

3

961

25 Nov 2022, 03:22

ER

If x and y are positive integers greater than two then what is the

605-655 (Medium) | Exponents, Remainders

605-655 (Medium) | Exponents, Remainders hide tags

Bunuel

25 Nov 2022, 02:30

3

1,176

25 Nov 2022, 10:36

ER

For any number x, [x] denotes the least integer greater than or equal

555-605 (Medium) | Functions and Custom Characters

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

rohan2345

11 May 2019, 06:09

4

3

3,088

26 Nov 2022, 13:23

ER

Is x^2 x 12 = 0? (1) x^2 + x 6 = 0 (2) x < 0

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

26 Nov 2022, 10:15

3

1,463

by: ScottTargetTestPrep

26 Nov 2022, 19:35

ER

If a, b are the integers, is b divisible by 7 ?

555-605 (Medium) | Multiples and Factors

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

Bunuel

28 Nov 2022, 02:30

4

3

1,132

28 Nov 2022, 09:25

ER

Is x < 1 ? (1) x = 1/(3 + y^2) (2) y = -2

605-655 (Medium) | Multiples and Factors

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

Bunuel

28 Nov 2022, 02:30

4

3

999

28 Nov 2022, 09:37

ER

If a and b are integers, what is the value of b?

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

Bunuel

05 May 2021, 06:30

7

3

2,279

29 Nov 2022, 00:38

ER

In the figure above, if PQ = x, is the area of triangle PQR equal to

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

29 Aug 2019, 06:40

5

3

2,608

29 Nov 2022, 03:10

ER

If a and x are integers and a > x what is the value of x ?

605-655 (Medium) | Exponents, Inequalities

605-655 (Medium) | Exponents, Inequalities hide tags

Bunuel

29 Nov 2022, 02:30

6

3

1,192

by: cat2010

29 Nov 2022, 10:39

ER

What is the value of a^4 – b^4 ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

25 Sep 2017, 00:03

2

3

2,095

29 Nov 2022, 11:07

ER

If both a and b have odd number of factors, what is the value of a/b ?

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

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

Bunuel

01 Dec 2022, 09:00

2

3

1,025

01 Dec 2022, 23:15

ER

What is the value of 5a + 10b, if a and b are positive integers such

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

30 Nov 2022, 10:15

3

1,469

by: chetan2u

02 Dec 2022, 03:03

ER

Is ac + bd + bc + ad > 0?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

27 Nov 2019, 02:03

3

2,456

03 Dec 2022, 05:00

ER

If x and y are integers, is 5x + y divisible by 5?

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

Bunuel

30 Mar 2016, 03:54

5

3

5,457

04 Dec 2022, 04:31

ER

If sqrt(x) is an integer, what is the value of sqrt(x)?

555-605 (Medium) | Inequalities, Number Properties

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

Bunuel

29 Sep 2021, 01:00

6

3

5,238

by: Bunuel

04 Dec 2022, 07:27

ER

A supplier sold two types of water heaters in 2017, tankless water hea

505-555 (Easy) | Percent and Interest Problems

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

mira93

03 Jul 2020, 05:09

15

3

4,873

05 Dec 2022, 04:09

ER

If x and y are positive, is x + y> 2xy

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

05 Dec 2022, 02:30

2

3

1,111

06 Dec 2022, 11:08

ER

In the xy-plane above, is angle BAC greater than 90 degrees?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

06 Dec 2022, 02:30

2

3

1,323

06 Dec 2022, 22:57

ER

In the xy-plane, if line k passes through the point (-5, a), where a

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

Bunuel

06 Dec 2022, 02:30

5

3

1,540

06 Dec 2022, 23:10

ER

What is the value of the integer r ? (1) The only prime factors of r

555-605 (Medium) | Multiples and Factors

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

Bunuel

03 Feb 2020, 05:01

7

3

3,083

08 Dec 2022, 03:25

ER

What is the area of the shaded quadrilateral in the figure above?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

07 Feb 2020, 06:11

5

3

5,201

08 Dec 2022, 12:11

ER

The "spin" of any two-digit number is defined as double the amount of

555-605 (Medium) | Multiples and Factors

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

Princ

29 Jul 2018, 01:27

3

1,979

08 Dec 2022, 23:58

ER

In(on) the xy coordinate plane, what is the area of a circle K?

Sub 505 (Easy) | Functions and Custom Characters

Sub 505 (Easy) | Functions and Custom Characters hide tags

MathRevolution

07 Nov 2016, 03:09

4

3

2,741

09 Dec 2022, 00:57

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

shyind

11 Nov 2015, 02:14

3

2,463

11 Dec 2022, 08:28

ER

If x + y + z = 8 and 3x + 2y + 4z = 25, what is the value of z ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

03 Nov 2021, 08:00

4

3

2,759

11 Dec 2022, 15:28

ER

If n is an integer and 2 < n < 6, what is the value of n?

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

Bunuel

06 Oct 2016, 00:57

3

8,723