GMAT Club Forum

ER

100 Hardest and easiest questions for DS as of April

Bunuel

21 Aug 2015, 03:42

773

19

161,933

by: bumpbot

28 Nov 2023, 14:32

ER

DS Question Directory by Topic and Difficulty

655-705 Level

655-705 Level hide tags

bb

07 Mar 2012, 08:58

1,418

0

447,982

by: bb

07 Mar 2012, 08:58

ER

What was the average production rate of cups of

555-605 Level | Work Problems

555-605 Level | Work Problems hide tags

Bunuel

25 Jun 2021, 01:30

3

5

1,673

by: Showmeyaa

25 Jun 2021, 23:47

ER

What is the standard deviation of a set of numbers

555-605 Level | Statistics and Sets Problems

555-605 Level | Statistics and Sets Problems hide tags

Bunuel

25 Jun 2021, 01:30

9

4

3,170

by: Showmeyaa

25 Jun 2021, 23:43

ER

Is the positive integer A divisible by 3?

655-705 Level | Divisibility/Multiples/Factors, Number Properties

655-705 Level | Divisibility/Multiples/Factors, Number Properties hide tags

Bunuel

25 Nov 2019, 02:21

3

4

1,836

by: bumpbot

25 Jun 2021, 10:14

ER

On a certain test, Linda’s score was twice as high

505-555 Level | Word Problems

505-555 Level | Word Problems hide tags

Bunuel

03 Nov 2015, 13:47

1

4

1,852

by: bumpbot

25 Jun 2021, 06:31

ER

Drug Y is the active ingredient in medicine M. Jeff

505-555 Level | Word Problems

505-555 Level | Word Problems hide tags

Bunuel

23 Jun 2021, 03:00

2

702

by: GMATWhizTeam

25 Jun 2021, 04:41

ER

What is the area of quadrilateral ABCD? (1) The

655-705 Level | Geometry

655-705 Level | Geometry hide tags

Bunuel

08 Apr 2020, 03:11

10

11

3,167

by: yashikaaggarwal

24 Jun 2021, 23:03

ER

Alice bought a certain number of 30 cent stamps, 35

705-805 Level | Word Problems

705-805 Level | Word Problems hide tags

Bunuel

27 Mar 2020, 02:08

18

3,433

by: KarishmaB

24 Jun 2021, 22:36

ER

What is the ratio of the average (arithmetic mean)

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

15 Jan 2020, 02:28

3

2

2,175

by: bumpbot

24 Jun 2021, 19:12

ER

If x and y are integers, and x - y + 2 > 0, is x

705-805 Level | Inequalities

705-805 Level | Inequalities hide tags

BrentGMATPrepNow

24 Jun 2021, 07:29

7

3

1,296

by: BrentGMATPrepNow

24 Jun 2021, 16:30

ER

If 5^x = y, what is x?

555-605 Level | Exponents

555-605 Level | Exponents hide tags

Bunuel

04 Nov 2014, 10:03

18

7

7,408

by: bumpbot

24 Jun 2021, 08:11

ER

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

555-605 Level | Percent and Interest Problems

555-605 Level | Percent and Interest Problems hide tags

Bunuel

15 May 2018, 01:47

2

6

3,571

by: bumpbot

24 Jun 2021, 02:22

ER

An integer x divided by nine gives a number f, where

655-705 Level | Divisibility/Multiples/Factors

655-705 Level | Divisibility/Multiples/Factors hide tags

Bunuel

07 Apr 2020, 04:21

8

5

1,839

by: bumpbot

24 Jun 2021, 01:13

ER

If x^3 + x^2 = abx^2 + abx, is x = ab? 1) x > 0 2)

605-655 Level | Algebra

605-655 Level | Algebra hide tags

Russ19

23 Jun 2021, 06:48

3

2

1,098

by: Showmeyaa

23 Jun 2021, 14:03

ER

A thoroughly mixed beverage consists only of certain

Sub 505 Level | Mixture Problems

Sub 505 Level | Mixture Problems hide tags

Bunuel

07 Apr 2020, 07:28

4

2

1,655

by: bumpbot

23 Jun 2021, 09:02

ER

Mary goes from her house to the library at a constant

605-655 Level | Distance Problems

605-655 Level | Distance Problems hide tags

indu1954

22 Feb 2019, 13:51

9

7

2,502

by: bumpbot

23 Jun 2021, 07:35

ER

If P and Q are positive integers, is P divisible by 12?

705-805 Level | Algebra

705-805 Level | Algebra hide tags

Bunuel

08 Feb 2021, 01:15

19

11

11,247

by: GMATBusters

23 Jun 2021, 07:27

ER

Paul, a painter, paints only flowers or cats in his

655-705 Level | Overlapping Sets

655-705 Level | Overlapping Sets hide tags

Bunuel

23 Jun 2021, 01:20

1

2

902

by: IanStewart

23 Jun 2021, 07:17

ER

The tax Jim paid on a shipment of Cognac brandy

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

23 Jun 2021, 04:00

3

1,109

by: BrentGMATPrepNow

23 Jun 2021, 06:55

ER

P is a circle with radius r. If AB is a chord in

605-655 Level | Geometry

605-655 Level | Geometry hide tags

Bunuel

23 Jun 2021, 02:00

1

1,074

by: TestPrepUnlimited

23 Jun 2021, 06:07

ER

Stewie deposits $5000 at a compounded interest rate.

505-555 Level | Percent and Interest Problems

505-555 Level | Percent and Interest Problems hide tags

Bunuel

23 Jun 2021, 02:30

2

1

1,719

by: TestPrepUnlimited

23 Jun 2021, 05:59

ER

If m is a positive integer, is m^(1/2) an integer?

Sub 505 Level | Number Properties, Roots

Sub 505 Level | Number Properties, Roots hide tags

Bunuel

15 May 2018, 03:50

6

4,674

by: CrackverbalGMAT

23 Jun 2021, 04:52

ER

If r, a and b are positive integers, is r a product of

555-605 Level | Number Properties

555-605 Level | Number Properties hide tags

Bunuel

27 Feb 2020, 00:24

18

3

1,958

by: bumpbot

23 Jun 2021, 03:23

ER

Is integer x prime?

555-605 Level | Divisibility/Multiples/Factors, Number Properties

555-605 Level | Divisibility/Multiples/Factors, Number Properties hide tags

Bunuel

23 Apr 2015, 03:44

14

6

4,850

by: bumpbot

22 Jun 2021, 23:42

ER

Is r greater than 0.27? (1) r is greater than 1/4 (2)

Sub 505 Level | Inequalities

Sub 505 Level | Inequalities hide tags

Bunuel

23 Sep 2018, 05:03

2

3

5,642

by: CrackverbalGMAT

22 Jun 2021, 12:38

ER

Two sets, M and Q, include only consecutive multiples

605-655 Level | Statistics and Sets Problems

605-655 Level | Statistics and Sets Problems hide tags

guerrero25

21 Mar 2013, 10:06

7

6

3,353

by: IanStewart

22 Jun 2021, 08:23

ER

The arithmetic mean (average) of a set of 10 numbers

705-805 Level | Statistics and Sets Problems

705-805 Level | Statistics and Sets Problems hide tags

Bunuel

20 May 2016, 00:19

17

3

8,435

by: bumpbot

22 Jun 2021, 02:08

ER

A bag contains r red, g green, and w white marbles,

705-805 Level | Probability

705-805 Level | Probability hide tags

Bunuel

13 May 2020, 01:57

18

5

2,665

by: bumpbot

22 Jun 2021, 00:42

ER

Is 500 the average (arithmetic mean) score on the GMAT?

505-555 Level | Statistics and Sets Problems

505-555 Level | Statistics and Sets Problems hide tags

Bunuel

28 May 2017, 02:05

1

5

12,429

by: bumpbot

21 Jun 2021, 23:27

ER

If list P contains more than two numbers, is every

555-605 Level | Statistics and Sets Problems

555-605 Level | Statistics and Sets Problems hide tags

Bunuel

06 May 2021, 22:00

3

1,154

by: PgRaul

21 Jun 2021, 20:43

ER

In a rectangular coordinate system, are the points (x,

655-705 Level | Absolute Values, Geometry

655-705 Level | Absolute Values, Geometry hide tags

Bunuel

21 Jun 2021, 01:30

9

4

1,844

by: TarunKumar1234

21 Jun 2021, 12:18

ER

Set P consists of 5 items. The standard deviation of

655-705 Level | Statistics and Sets Problems

655-705 Level | Statistics and Sets Problems hide tags

Bunuel

21 Jun 2021, 01:30

8

6

2,975

by: Showmeyaa

21 Jun 2021, 12:04

ER

If p is a positive integer, what is the remainder when

705-805 Level | Divisibility/Multiples/Factors, Remainders

705-805 Level | Divisibility/Multiples/Factors, Remainders hide tags

GMATWhizTeam

05 Apr 2020, 09:39

10

9

3,595

by: pk6969

21 Jun 2021, 06:17

ER

Paul, a painter, paints only flowers or cats in his

605-655 Level | Overlapping Sets

605-655 Level | Overlapping Sets hide tags

Bunuel

16 Jun 2021, 07:00

2

1,528

by: IanStewart

21 Jun 2021, 03:35

ER

Is |a| = |ab|

655-705 Level | Absolute Values, Algebra

655-705 Level | Absolute Values, Algebra hide tags

Abhi077

12 Feb 2019, 11:07

13

2

1,914

by: bumpbot

21 Jun 2021, 00:35

ER

If n is an integer from 1 to 9. Is n prime?

655-705 Level | Number Properties

655-705 Level | Number Properties hide tags

Bunuel

07 Jan 2020, 05:52

10

9

3,590

by: bumpbot

20 Jun 2021, 17:16

ER

In a certain factory, 20 employees work in five

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

Bunuel

16 Jun 2021, 05:30

4

2

1,071

by: TestPrepUnlimited

20 Jun 2021, 14:25

ER

Sets S and T contain an equal number of elements, all

605-655 Level | Statistics and Sets Problems

605-655 Level | Statistics and Sets Problems hide tags

Bunuel

16 Jun 2021, 02:00

7

3

1,025

by: ReedArnoldMPREP

20 Jun 2021, 11:59

ER

In set P above, if y is the median and z is the mode,

555-605 Level | Statistics and Sets Problems

555-605 Level | Statistics and Sets Problems hide tags

Bunuel

16 Jun 2021, 02:30

3

1,955

by: Kinshook

20 Jun 2021, 09:41

ER

ab and ba are two-digit numbers. Find these numbers.

805+ Level | Algebra, Number Properties

805+ Level | Algebra, Number Properties hide tags

sherxon

18 Jun 2021, 22:03

9

2

2,658

by: IanStewart

20 Jun 2021, 08:59

ER

Last week, Rubi worked five days, from Monday to

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

Bunuel

16 Jun 2021, 06:00

2

1,437

by: IanStewart

20 Jun 2021, 08:19

ER

a, b, x and y are positive integers. If ay = bx, is 7

555-605 Level | Divisibility/Multiples/Factors, Number Properties

555-605 Level | Divisibility/Multiples/Factors, Number Properties hide tags

Bunuel

26 Jun 2018, 06:24

2

6

2,935

by: bumpbot

20 Jun 2021, 05:11

ER

In a class with 12 children, q of the children are

705-805 Level | Probability

705-805 Level | Probability hide tags

Bunuel

28 Jan 2018, 23:40

10

3

2,352

by: CrackverbalGMAT

20 Jun 2021, 04:50

ER

If sides of a quadrilateral X are integers, then is X

655-705 Level | Geometry

655-705 Level | Geometry hide tags

Bunuel

11 Jun 2020, 02:55

14

6

1,931

by: bumpbot

20 Jun 2021, 04:15

At State University, the average (arithmetic mean)

555-605 Level | Statistics and Sets Problems

555-605 Level | Statistics and Sets Problems hide tags

rxs0005

21 Nov 2010, 08:19

5

7

4,634

by: bumpbot

20 Jun 2021, 04:03

ER

If xy ≠ 0 and (xy/3)^(1/2) = x, what is y ? (1)

505-555 Level | Algebra, Roots

505-555 Level | Algebra, Roots hide tags

Bunuel

09 Mar 2020, 06:08

11

3

3,305

by: Bunuel

20 Jun 2021, 01:33

ER

A certain bakery sells rye bread in 10-ounce loaves

505-555 Level | Word Problems

505-555 Level | Word Problems hide tags

Bunuel

03 Jan 2017, 02:35

2

1,902

by: bumpbot

19 Jun 2021, 21:26

ER

Last year, 'Crazy Matt's Electronics' earned 90% more

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

Bunuel

16 Jun 2021, 06:30

1

3,444

by: MarmikUpadhyay

19 Jun 2021, 19:44

Does a = b ? (1) a^5 - b^5 = 0 (2) a^2 + b^2 = 0

605-655 Level | Algebra

605-655 Level | Algebra hide tags

Ashokvardhan

18 Jun 2021, 21:21

3

932

by: Kinshook

19 Jun 2021, 09:03

ER

What is the value of n? 1). The tens’ digit of 11^n

705-805 Level | Exponents

705-805 Level | Exponents hide tags

PriyankaPalit7

20 Mar 2019, 09:31

7

5

2,289

by: bumpbot

18 Jun 2021, 07:11

ER

If x is a positive integer less than 10, is 14,743 + x

655-705 Level | Number Properties

655-705 Level | Number Properties hide tags

Bunuel

08 Oct 2015, 08:13

24

14

6,670

by: bumpbot

18 Jun 2021, 06:45

Data Sufficiency (DS)