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

487,806

by: bb

29 Aug 2025, 13:27

ER

All of the seats in a lecture hall are arranged in 15 rows.

505-555 (Easy) | Sequences, Word Problems

505-555 (Easy) | Sequences, Word Problems hide tags

fozzzy

17 Sep 2013, 01:40

4

6,091

30 Sep 2018, 13:55

ER

Is the point (x,y) in the fourth quadrant?

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

1, 2

Jones105

23 Nov 2017, 23:59

8

21

8,023

30 Sep 2018, 14:25

ER

Is x greater than 1.8? (1) x > 1.7 (2) x > 1.9

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

23 Sep 2018, 21:00

2

7,752

01 Oct 2018, 02:53

ER

If a and b are integers, what is the value of (8a^6b − 2)?

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

Bunuel

01 Oct 2018, 04:33

1

1,780

01 Oct 2018, 04:45

ER

If x and y are integers, is y an odd integer?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

01 Oct 2018, 04:29

6

2

2,439

by: harsha3699

01 Oct 2018, 04:49

ER

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

605-655 (Medium) | Algebra, Exponents

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

Bunuel

01 Oct 2018, 04:50

1

1,620

by: harsha3699

01 Oct 2018, 04:59

ER

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

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

01 Oct 2018, 04:48

2

1,837

by: BrentGMATPrepNow

01 Oct 2018, 10:41

ER

If x and z are positive integers, is at least one of them a prime numb

705-805 (Hard) | Algebra, Number Properties

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

Bunuel

01 Oct 2018, 04:53

9

3

1,840

by: harsha3699

01 Oct 2018, 23:28

ER

If a>b>0

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Poor Quality hide tags

rheabiswal

01 Oct 2018, 21:38

1

6

1,841

by: rheabiswal

02 Oct 2018, 07:05

What is the standard deviation of the age of 30 students in a class?

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

reynaldreni

03 Oct 2018, 19:43

1

1,544

by: Chethan92

03 Oct 2018, 19:49

ER

If the maximum number of identical cylinders, standing upright and tou

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

17 Sep 2018, 22:06

16

10

2,130

by: chetan2u

03 Oct 2018, 20:39

ER

P and Q are positive integers. Is P odd?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

23 Feb 2015, 03:19

2

3

4,875

04 Oct 2018, 08:12

ER

If P and Q are Positive Integers, is P/Q terminating?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

stonecold

06 Nov 2016, 09:22

4

3

4,232

04 Oct 2018, 08:19

ER

If rectangle ABCD can be divided into two equal squares, what is the

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

04 Sep 2018, 23:42

3

5

2,370

by: CounterSniper

07 Oct 2018, 05:12

ER

If 2 < x < 6, what is the value of x? (1) 15 is a multiple of x. (2) 2

505-555 (Easy) | Multiples and Factors

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

Bunuel

25 Sep 2018, 05:26

6

14

3,051

08 Oct 2018, 02:16

ER

A broker charges a brokerage which is a fixed percent of the value of

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

09 Oct 2018, 03:17

4

1,750

09 Oct 2018, 05:42

ER

Is xy > 0 ? (1) x – y > 2 (2) x + y > –2

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

26 Feb 2017, 09:12

3

4

1,860

09 Oct 2018, 09:50

ER

If the product of X and Y is a positive number, is the sum of X and Y

605-655 (Medium) | Inequalities, Number Properties

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

Bunuel

31 May 2016, 05:46

5

4

7,098

09 Oct 2018, 11:40

ER

Every month an insurance agent is paid a fixed salary of $500 and a co

605-655 (Medium) | Percent and Interest Problems, Word Problems

605-655 (Medium) | Percent and Interest Problems, Word Problems hide tags

Bunuel

10 Oct 2018, 04:52

1

2,329

10 Oct 2018, 05:07

ER

If p, q and r are three consecutive integers, in that order and p > 1,

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DHAR

10 Oct 2018, 06:12

20

10

12,806

by: Gaagi1406

10 Oct 2018, 10:55

ER

If p and r are positive, is 25 percent of p equal to 10 percent of r ?

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

11 Oct 2018, 04:16

2

1

2,544

11 Oct 2018, 04:36

ER

In the diagram above each of the letters represents an odd single-digi

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

Bunuel

10 Apr 2017, 02:18

3

1,592

11 Oct 2018, 09:11

ER

If x=0.abcabc........(a repeating infinite decimal), what is the value

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

MathRevolution

10 Oct 2018, 00:58

5

1,758

12 Oct 2018, 14:19

ER

If m, n, p are positive integers, is (m2 + n)(2m + p) odd

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

goodyear2013

13 Jan 2014, 05:38

6

2

4,417

by: Helium

12 Oct 2018, 21:57

ER

What is the area of the above circle?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

GMATBusters

13 Oct 2018, 10:25

8

3

1,559

by: GMATBusters

13 Oct 2018, 21:09

ER

What is the units digit of Y?

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sudhir18n

29 Jun 2011, 01:25

5

9

7,820

by: tann412

14 Oct 2018, 07:32

ER

The sum of the digits of a three-digit number is 11. What is the produ

555-605 (Medium) | Fractions and Ratios

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

Bunuel

09 Jul 2015, 04:07

13

11

9,806

14 Oct 2018, 18:23

ER

Julie runs a small art museum. How many paintings does her museum have

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

01 Oct 2015, 01:42

6

5

5,631

14 Oct 2018, 22:50

ER

How long would it take Joan to count the books in a small library?

Sub 505 (Easy) | Word Problems, Work and Rate Problems

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

Bunuel

24 Jan 2016, 05:37

2

5

3,731

17 Oct 2018, 10:25

ER

Hoses X and Y simultaneously fill an empty swimming pool that has a ca

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

11 Apr 2017, 01:08

5

4

3,060

17 Oct 2018, 10:34

ER

The above figure shows a sector of a circle. What is the area of the s

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

MathRevolution

11 Oct 2018, 01:35

5

9

2,584

17 Oct 2018, 12:12

ER

Set Q contains p numbers, where p > 1. What is the ratio of the averag

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

31 Jan 2017, 10:23

7

3

2,706

18 Oct 2018, 00:13

ER

If Steve and David each bought some candies, did Steve buy more candie

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

17 Oct 2018, 00:30

2

1,388

by: KrishnakumarKA1

18 Oct 2018, 23:58

ER

Tub A and Tub B contain milk and Tub B was half full. If all of the mi

505-555 (Easy) | Fractions and Ratios

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

Bunuel

17 Oct 2018, 00:25

1

1,915

19 Oct 2018, 06:23

ER

If line M passes through the coordinate system shown above, does line

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Bunuel

07 Sep 2018, 01:26

8

2

3,486

by: BrentGMATPrepNow

19 Oct 2018, 11:29

ER

If c is a positive integer between 1 and 9 inclusive

555-605 (Medium) | Multiples and Factors

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

jgk

01 Nov 2014, 07:25

7

3

4,485

19 Oct 2018, 12:15

ER

What is the remainder when positive integer x is divided by 5?

Sub 505 (Easy) | Remainders

Sub 505 (Easy) | Remainders hide tags

Bunuel

17 Jun 2015, 06:04

9

4,648

19 Oct 2018, 14:31

ER

How many milliliters of Chemical X were added to the Chemical Y in a

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

17 Oct 2018, 00:27

2

1,451

by: varun4s

20 Oct 2018, 05:36

ER

A large-size battery pack contains more numbers of batteries and costs

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

22 Oct 2018, 00:21

2

1,456

by: Archit3110

22 Oct 2018, 04:33

ER

What is the value of x^4y^2 - x^4y^2 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

24 Mar 2015, 04:48

5

8

4,682

22 Oct 2018, 12:42

ER

Vishwanathan Anand & Gary Kasparov play a series of 5 chess games. The

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

Bunuel

10 Jun 2018, 05:17

12

10

8,594

by: ShankSouljaBoi

22 Oct 2018, 21:31

ER

The function f is defined by f(x) = p^x, where x is an integer and p

505-555 (Easy) | Functions and Custom Characters

505-555 (Easy) | Functions and Custom Characters hide tags

Bunuel

24 Oct 2018, 05:03

1

1,911

by: nkin

24 Oct 2018, 05:57

ER

If h and j are positive integers, is j a multiple of 9?

705-805 (Hard) | Multiples and Factors

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

Bunuel

15 Jan 2017, 09:18

10

3

1,899

24 Oct 2018, 09:50

ER

If the average (arithmetic mean) of the scores of x students of class

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

25 Oct 2018, 02:26

3

2

2,570

by: EgmatQuantExpert

25 Oct 2018, 06:25

ER

If the average (arithmetic mean) of four unequal numbers is 40, how ma

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

25 Oct 2018, 02:26

3

2,251

by: EgmatQuantExpert

25 Oct 2018, 06:27

ER

If each of the 10 students working with an NGO received cash prize, wa

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

Bunuel

25 Oct 2018, 02:24

3

1,677

by: EgmatQuantExpert

25 Oct 2018, 06:31

ER

If the average (arithmetic mean) of seven unequal numbers is 20, what

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

25 Oct 2018, 02:25

11

13

3,287

by: DavidTutorexamPAL

26 Oct 2018, 05:23

ER

Ram can push a certain cart 4 times as fast as Rahim can. If they take

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

GMATBusters

27 Oct 2018, 10:14

1

1,520

by: TestTaker9

27 Oct 2018, 10:22

ER

N is a two-digit number, whose tens digit is 9. If the units digit of

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

EgmatQuantExpert

16 Dec 2016, 05:32

22

5

5,363