GMAT Club Forum

ER

100 Hardest and easiest questions for DS as of April

Bunuel

21 Aug 2015, 03:42

774

19

162,031

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

1,419

0

448,119

by: bb

07 Mar 2012, 08:58

Set X consists of 9 positive elements. Set Y consists

805+ Level | Statistics and Sets Problems

805+ Level | Statistics and Sets Problems hide tags

kevincan

19 Sep 2006, 13:49

46

8

17,467

by: bumpbot

20 Apr 2024, 06:51

ER

How many positive factors does the positive integer x

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

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

Nevernevergiveup

26 Dec 2015, 03:12

28

9

10,147

by: bumpbot

20 Apr 2024, 06:51

ER

Is positive integer p even?

805+ Level | Divisibility/Multiples/Factors

805+ Level | Divisibility/Multiples/Factors hide tags

BrentGMATPrepNow

20 May 2019, 06:22

41

10

4,456

by: bumpbot

20 Apr 2024, 06:51

ER

Is x even? (1) x^5 is even. (2) 4x – 2 is even.

805+ Level | Number Properties

805+ Level | Number Properties hide tags

Bunuel

23 Jan 2017, 09:30

15

7

2,715

by: bumpbot

20 Apr 2024, 06:49

ER

Yesterday Bookstore B sold twice as many softcover

805+ Level | Statistics and Sets Problems, Word Problems

805+ Level | Statistics and Sets Problems, Word Problems hide tags

parkhydel

28 Apr 2020, 04:59

294

16

27,410

by: GMATinsight

20 Apr 2024, 06:43

ER

a, b, c, d, and e are five numbers such that

805+ Level | Statistics and Sets Problems

805+ Level | Statistics and Sets Problems hide tags

Bunuel

03 Apr 2021, 04:00

10

2

2,771

by: bumpbot

20 Apr 2024, 06:35

ER

A music festival took place over two days, Saturday

705-805 Level | Overlapping Sets

705-805 Level | Overlapping Sets hide tags

Bunuel

30 Jun 2018, 23:54

32

14

10,601

by: bumpbot

20 Apr 2024, 06:19

ER

A retailer buys t-shirts from a wholesaler in lots of

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

19 Apr 2024, 01:30

2

407

by: GMATinsight

20 Apr 2024, 05:54

ER

If y is an integer, is y^3 divisible by 9 ?

505-555 Level | Divisibility/Multiples/Factors

505-555 Level | Divisibility/Multiples/Factors hide tags

Bunuel

29 Jan 2014, 02:18

88

11

20,023

by: bumpbot

20 Apr 2024, 05:46

ER

The sequence s1, s2, s3, ..., sn, ... is such that Sn

605-655 Level | Sequences

605-655 Level | Sequences hide tags

Bunuel

17 Aug 2010, 12:46

486

14

63,556

by: bumpbot

20 Apr 2024, 05:44

ER

In a certain set of five numbers the median is 200

705-805 Level | Statistics and Sets Problems

705-805 Level | Statistics and Sets Problems hide tags

tom09b

03 Mar 2012, 12:39

91

13

10,693

by: bumpbot

20 Apr 2024, 05:24

ER

Is 3 a factor of the positive integer m?

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

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

Stardust Chris

23 Feb 2015, 14:00

19

7

4,522

by: bumpbot

20 Apr 2024, 05:09

ER

If the integers a and n are greater than 1 and the

655-705 Level | Exponents

655-705 Level | Exponents hide tags

dominion

19 Jan 2008, 15:04

359

17

73,936

by: bumpbot

20 Apr 2024, 05:06

ER

Is x a multiple of 72?

505-555 Level | Divisibility/Multiples/Factors

505-555 Level | Divisibility/Multiples/Factors hide tags

MHIKER

30 Oct 2018, 15:23

11

3

3,494

by: bumpbot

20 Apr 2024, 04:39

ER

Data Sufficiency Pack 4, Question 2) Z is a positive

605-655 Level | Arithmetic, Number Properties

605-655 Level | Arithmetic, Number Properties hide tags

EMPOWERgmatRichC

20 Nov 2015, 15:21

21

5

6,500

by: bumpbot

20 Apr 2024, 03:24

ER

What fraction of this year's graduating students at a

605-655 Level | Fractions/Ratios/Decimals

605-655 Level | Fractions/Ratios/Decimals hide tags

sunland

22 Jul 2010, 06:32

167

19

31,599

by: bumpbot

20 Apr 2024, 03:06

ER

The sum of positive integers x and y is 77. What is

555-605 Level | Number Properties

555-605 Level | Number Properties hide tags

andrewnorway

08 Nov 2006, 11:14

128

15

46,271

by: bumpbot

20 Apr 2024, 01:37

If n is an integer, is 3^n+1 divisible by 10?

805+ Level | Divisibility/Multiples/Factors

805+ Level | Divisibility/Multiples/Factors hide tags

PriyankaPalit7

17 Mar 2019, 03:24

7

4

2,708

by: bumpbot

19 Apr 2024, 16:40

ER

Ed has some fish, and the combined weight of all the

805+ Level | Word Problems

805+ Level | Word Problems hide tags

Bunuel

21 May 2017, 06:12

8

4

2,354

by: bumpbot

19 Apr 2024, 16:24

ER

If n is a positive integer and the tens digit of n+8

805+ Level | Fractions/Ratios/Decimals, Number Properties

805+ Level | Fractions/Ratios/Decimals, Number Properties hide tags

fozzzy

18 Aug 2013, 05:31

10

13

5,880

by: bumpbot

19 Apr 2024, 16:13

ER

At a certain fiorist shop, roses can be purchased

805+ Level | Word Problems

805+ Level | Word Problems hide tags

Bunuel

11 Aug 2021, 08:30

7

4

2,057

by: bumpbot

19 Apr 2024, 16:08

ER

There are 1,280 books at a library. Everyone borrows

705-805 Level | Overlapping Sets

705-805 Level | Overlapping Sets hide tags

BillyZ

13 Mar 2017, 23:25

14

12

4,272

by: bumpbot

19 Apr 2024, 16:02

ER

If there is a bag containing less than 30 balls, how

655-705 Level | Probability, Word Problems

655-705 Level | Probability, Word Problems hide tags

chetan2u

23 Nov 2017, 06:16

10

7

2,069

by: bumpbot

19 Apr 2024, 15:15

ER

Warehouse W's revenue from the sale of sofas was what

555-605 Level | Percent and Interest Problems

555-605 Level | Percent and Interest Problems hide tags

young_gun

08 Oct 2007, 17:51

421

19

90,337

by: DanTheGMATMan

19 Apr 2024, 09:34

ER

There is a sequence such that an = a(n-2) + 12, where

805+ Level | Sequences

805+ Level | Sequences hide tags

Bunuel

15 Nov 2019, 02:35

15

2

2,444

by: bumpbot

19 Apr 2024, 08:17

ER

n is an integer between 80 and 200, inclusive. When n

705-805 Level | Remainders

705-805 Level | Remainders hide tags

Bunuel

28 Apr 2022, 01:30

6

2

1,173

by: bumpbot

19 Apr 2024, 02:05

ER

What is the mean of the exams taken by a group of

505-555 Level | Statistics and Sets Problems

505-555 Level | Statistics and Sets Problems hide tags

Bunuel

05 Feb 2015, 09:13

13

6

5,956

by: bumpbot

19 Apr 2024, 01:01

What is the 14th term of the sequence?

655-705 Level | Sequences

655-705 Level | Sequences hide tags

Evo23

27 Apr 2020, 05:27

4

2

1,443

by: bumpbot

19 Apr 2024, 00:57

ER

If a and b are distinct positive integers, what is the

705-805 Level | Divisibility/Multiples/Factors, Fractions/Ratios/Decimals

705-805 Level | Divisibility/Multiples/Factors, Fractions/Ratios/Decimals hide tags

Postal

26 Nov 2011, 02:13

55

14

8,517

by: bumpbot

19 Apr 2024, 00:45

ER

If q is a six-digit integer between 200,000 and

655-705 Level | Number Properties, Remainders

655-705 Level | Number Properties, Remainders hide tags

Bunuel

09 May 2017, 23:54

25

6

5,458

by: bumpbot

19 Apr 2024, 00:26

ER

A bookstore that sells used books sells each of its

505-555 Level | Algebra, Word Problems

505-555 Level | Algebra, Word Problems hide tags

Bunuel

23 Feb 2014, 07:48

50

9

30,227

by: DanTheGMATMan

18 Apr 2024, 14:01

ER

If m and n are positive integers such that m > n,

705-805 Level | Divisibility/Multiples/Factors, Number Properties

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

Bunuel

06 Apr 2015, 07:55

26

7

8,657

by: GMATGuruNY

18 Apr 2024, 12:21

ER

What is the sum of the first four terms of sequence S?

655-705 Level | Sequences

655-705 Level | Sequences hide tags

AbdurRakib

01 Jul 2016, 04:57

85

7

21,460

by: Fish181

18 Apr 2024, 10:47

ER

A certain student sold exactly 40% of all the tickets

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

AnkitK

15 Jun 2011, 11:26

14

5,824

by: bumpbot

18 Apr 2024, 10:27

ER

x is a positive integer such as 4,095<x<4,105.

805+ Level | Number Properties

805+ Level | Number Properties hide tags

Bunuel

22 Feb 2023, 02:29

1

2

803

by: tanishqgirotra

18 Apr 2024, 09:38

ER

The difference between John's and Paul's heights is

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

Bunuel

17 May 2021, 01:30

19

2

9,040

by: chetan2u

18 Apr 2024, 08:50

ER

A certain salesperson earns a total sales commission

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

GMATNinja

13 Feb 2024, 01:15

9

3

804

by: GMATNinja

18 Apr 2024, 08:44

ER

A contractor combined x tons of a gravel mixture that

655-705 Level | Mixture Problems

655-705 Level | Mixture Problems hide tags

1, 2

ugimba

28 Jan 2010, 15:07

334

20

67,222

by: bumpbot

18 Apr 2024, 08:36

ER

What is the remainder when the positive integer X is

555-605 Level | Remainders

555-605 Level | Remainders hide tags

uday1409

15 Dec 2014, 09:54

10

6

5,068

by: bumpbot

18 Apr 2024, 08:06

A seller increased the price of an item by X% and then

655-705 Level | Percent and Interest Problems, Word Problems

655-705 Level | Percent and Interest Problems, Word Problems hide tags

PriyankaPalit7

24 Mar 2019, 08:53

10

4

3,609

by: bumpbot

18 Apr 2024, 07:53

ER

A line of people waiting to buy a device, 12% of the

805+ Level | Word Problems

805+ Level | Word Problems hide tags

Bunuel

31 Jul 2020, 00:51

12

9

3,593

by: devashish2407

18 Apr 2024, 07:00

ER

For which value of x will y=ax^2+100x+b have a maximum

605-655 Level | Algebra +2 tags

605-655 Level | Algebra, Functions and Custom Characters, Min-Max Problems hide tags

MathRevolution

28 Nov 2017, 00:55

44

3

4,527

by: bumpbot

18 Apr 2024, 06:32

ER

Each of six students, four girls and two boys, spent

505-555 Level | Word Problems

505-555 Level | Word Problems hide tags

Bunuel

18 Apr 2024, 01:30

4

2

427

by: GMATinsight

18 Apr 2024, 05:48

ER

There are only three kinds of books on a bookshelf,

555-605 Level | Fractions/Ratios/Decimals

555-605 Level | Fractions/Ratios/Decimals hide tags

Bunuel

18 Apr 2024, 01:30

4

1

360

by: Nidzo

18 Apr 2024, 04:41

ER

Kim and Sue each bought some roses and some daisies at

655-705 Level | Algebra, Word Problems

655-705 Level | Algebra, Word Problems hide tags

AbdurRakib

22 Jun 2017, 14:03

480

13

47,191

by: bumpbot

18 Apr 2024, 04:19

ER

A sandwich shop offers a sandwich menu, a soup menu,

805+ Level | Combinations

805+ Level | Combinations hide tags

nick13

07 Oct 2023, 15:56

23

7

3,731

by: Bunuel

18 Apr 2024, 00:44

ER

If, in the addition problem above, a, b, c, d, e, f,

805+ Level | Arithmetic

805+ Level | Arithmetic hide tags

1, 2

mn2010

18 Jul 2010, 15:59

439

20

52,180

by: bumpbot

17 Apr 2024, 22:01

ER

A box of light bulbs contains exactly 3 light bulbs

555-605 Level | Probability

555-605 Level | Probability hide tags

gmatt1476

21 Sep 2019, 16:00

145

15

21,310

by: gmatchile1

17 Apr 2024, 17:13

ER

If a certain city is losing 12 percent of its daily

Sub 505 Level | Word Problems

Sub 505 Level | Word Problems hide tags

Bunuel

16 Dec 2014, 05:24

5

7

6,709

by: gmatchile1

17 Apr 2024, 16:50

ER

The figure above shows an array of 30 square tiles,

655-705 Level | Word Problems

655-705 Level | Word Problems hide tags

Bunuel

17 Apr 2024, 14:32

4

1

520

by: Bunuel

17 Apr 2024, 14:39

Data Sufficiency (DS)