GMAT Club Forum

767

ER

100 Hardest and easiest questions for DS as of March 2024

Bunuel

19

160133

by: bumpbot

28 Nov 2023, 14:32

1413

ER

DS Question Directory by Topic and Difficulty

Tags: Difficulty: 655-705 Level

bb

0

445758

by: bb

07 Mar 2012, 08:58

150

ER

If x and y are integers, is xy + 1 divisible by 3 ?

Tags: Difficulty: 505-555 Level, Remainders

Bunuel

12

19367

by: bumpbot

13 Apr 2024, 07:58

41

ER

If x, y and z are integers and xyz is divisible by 8, is x e

Tags: Difficulty: 655-705 Level, Divisibility/Multiples/Factors, Number Properties

enigma123

11

9059

by: bumpbot

13 Apr 2024, 05:42

28

ER

Is positive integer n – 1 a multiple of 3?

Tags: Difficulty: 655-705 Level, Divisibility/Multiples/Factors

ShreeCS

8

7129

by: bumpbot

13 Apr 2024, 05:40

67

ER

If n is a positive integer greater than 6, what is the remai

Tags: Difficulty: 655-705 Level, Divisibility/Multiples/Factors, Remainders

russ9

11

13983

by: bumpbot

13 Apr 2024, 05:35

63

ER

Is the sum of integers a and b divisible by 7?

Tags: Difficulty: 655-705 Level, Divisibility/Multiples/Factors, Remainders

gmatjon

17

12763

by: bumpbot

13 Apr 2024, 05:33

22

ER

If x, y, and z are positive integers such that x < y < z, is x a facto

Tags: Difficulty: 655-705 Level, Divisibility/Multiples/Factors, Number Properties

Bunuel

9

4490

by: bumpbot

13 Apr 2024, 05:31

48

ER

n is an integer such that n ≥ 0. For n > 0, the sequence tn is defined

Tags: Difficulty: 655-705 Level, Divisibility/Multiples/Factors, Number Properties, Sequences

Bunuel

9

8947

by: bumpbot

13 Apr 2024, 05:25

32

ER

Is positive integer z greater than 275?

Tags: Difficulty: 555-605 Level, Divisibility/Multiples/Factors

shasadou

9

8164

by: bumpbot

13 Apr 2024, 04:24

18

ER

If Q is a positive integer, is 300 a factor of Q?

Tags: Difficulty: 605-655 Level, Divisibility/Multiples/Factors

Bunuel

3

4716

by: bumpbot

13 Apr 2024, 04:15

4

ER

If x is an integer, is 72/x an integer?

Tags: Difficulty: 555-605 Level, Divisibility/Multiples/Factors

Bunuel

3

4218

by: bumpbot

13 Apr 2024, 03:52

24

ER

If d and e are positive integers, is d a multiple of 9?

Tags: Difficulty: Sub 505 Level, Fractions/Ratios/Decimals, Number Properties

cdrectenwald

7

7893

by: bumpbot

13 Apr 2024, 03:47

43

ER

If r and s are nonzero integers, is r/s an integer ?

Tags: Difficulty: 505-555 Level, Algebra, Number Properties

Bunuel

4

12681

by: bumpbot

13 Apr 2024, 03:46

208

ER

If x is a positive integer greater than 1, what is the value of x?

Tags: Difficulty: 505-555 Level, Divisibility/Multiples/Factors

Bunuel

19

45308

by: bumpbot

13 Apr 2024, 03:28

48

ER

A store sells two types of birdfeeder: Alphas and Bravos.

Tags: Difficulty: 805+ Level, Word Problems

Maxswe

10

6873

by: bumpbot

13 Apr 2024, 02:58

91

ER

Set S consists of more than two integers. Are all the integers in set

Tags: Difficulty: 805+ Level, Number Properties

ZArslan

15

13667

by: bumpbot

13 Apr 2024, 02:35

12

ER

If z is a positive integer, is z + 1 a factor of 105?

Tags: Difficulty: 605-655 Level, Number Properties

d999

3

3203

by: bumpbot

13 Apr 2024, 01:44

14

ER

Is 12 a factor of the positive integer n?

Tags: Difficulty: 555-605 Level, Divisibility/Multiples/Factors

Bunuel

6

6285

by: bumpbot

13 Apr 2024, 01:42

9

ER

Is 4 + n/6 an integer?

Tags: Difficulty: Sub 505 Level, Divisibility/Multiples/Factors, Number Properties

calvinhobbes

14

6216

by: bumpbot

13 Apr 2024, 01:31

33

ER

Is the integer p divisible by 5 ? (1) p is divisible by 10. (2) p is

Tags: Difficulty: Sub 505 Level, Divisibility/Multiples/Factors

Bunuel

9

14630

by: bumpbot

13 Apr 2024, 01:22

5

ER

All but 5 students in a certain calculus class took the final exam on

Tags: Difficulty: 555-605 Level, Statistics and Sets Problems

guddo

5

1382

by: Aryaa03

13 Apr 2024, 00:08

10

ER

If positive integer n<=3 and n is the number of times a coin is flippe

Tags: Difficulty: 805+ Level, Probability

Bunuel

3

2590

by: bumpbot

12 Apr 2024, 21:42

6

ER

Diana is traveling from Morristown to Lotusville in a car that average

Tags: Difficulty: 555-605 Level, Word Problems

Bunuel

1

311

by: Edoua

12 Apr 2024, 21:37

3

ER

Principal of a school recorded the number of students in each of 15 cl

Tags: Difficulty: 505-555 Level, Statistics and Sets Problems

Bunuel

7

1795

by: bumpbot

12 Apr 2024, 18:27

6

ER

Yesterday each coat in a store was offered on sale price.

Tags: Difficulty: 555-605 Level, Word Problems

Starburst10

5

754

by: Bunuel

12 Apr 2024, 13:47

41

ER

If a and b are non-negative integers, is ab prime?

Tags: Difficulty: 605-655 Level, Number Properties

zxcvbnmas

8

11970

by: bumpbot

12 Apr 2024, 12:36

28

ER

If j > 1, is integer j a prime number? (1) When j is divided by 3, th

Tags: Difficulty: 605-655 Level, Number Properties, Remainders

shasadou

8

9669

by: bumpbot

12 Apr 2024, 12:26

11

ER

12 Days of Christmas GMAT Competition - Day 10: Is m+10 positive?

Tags: Difficulty: 605-655 Level, Number Properties

Bunuel

6

2975

by: bumpbot

12 Apr 2024, 11:04

6

ER

If n is a one-digit positive integer, what is n ?

Tags: Difficulty: 605-655 Level, Exponents/Powers, Number Properties

Bunuel

3

3764

by: bumpbot

12 Apr 2024, 10:06

40

ER

For positive integers x and y, x^2 = 350y. Is y divisible

Tags: Difficulty: 705-805 Level, Divisibility/Multiples/Factors

jayaddula

11

8303

by: bumpbot

12 Apr 2024, 10:02

31

ER

If x and y are positive integers such that the product of x

Tags: Difficulty: 605-655 Level, Exponents/Powers, Number Properties

saikiranx

8

6811

by: bumpbot

12 Apr 2024, 10:00

349

ER

If m is a positive integer, then m^3 has how many digits?

Tags: Difficulty: 705-805 Level, Fractions/Ratios/Decimals

Bunuel

10

39336

by: bumpbot

12 Apr 2024, 09:46

2

ER

What is the probability of selecting a white ball from a jar at random

Tags: Difficulty: Sub 505 Level, Probability

Bunuel

2

2967

by: bumpbot

12 Apr 2024, 06:20

3

ER

Jonathan would like to visit one of the 12 gyms in his area. If he

Tags: Difficulty: Sub 505 Level, Probability

Bunuel

2

1638

by: Rebaz

12 Apr 2024, 06:13

4

The positive integers p, q, and r each have the same remainder when

Tags: Difficulty: 555-605 Level, Number Properties, Remainders

TBT

3

1105

by: Rohan271

12 Apr 2024, 05:37

9

ER

A certain company received applications from 95 people for a job it ha

Tags: Difficulty: 705-805 Level, Overlapping Sets

Russ19

4

1816

by: Rohan271

12 Apr 2024, 05:13

2

ER

The ratio of men to women employed by Company X in 1995 was 1 to 2

Tags: Difficulty: 555-605 Level, Fractions/Ratios/Decimals, Word Problems

Bunuel

1

231

by: Nidzo

12 Apr 2024, 04:58

3

ER

A box has some red and some green balls in it. There are no balls of

Tags: Difficulty: 505-555 Level, Probability

Bunuel

2

2086

by: bumpbot

12 Apr 2024, 03:48

4

ER

If a bottle is to be selected at random from a certain

Tags: Difficulty: Sub 505 Level, Probability

banksy

2

9562

by: bumpbot

12 Apr 2024, 03:42

30

ER

How many sides does polygon P have? (1) All sides of P have equal len

Tags: Difficulty: Sub 505 Level, Geometry

Nanobotstv

6

9371

by: bumpbot

11 Apr 2024, 20:58

160

ER

If digit h is the hundredths' digit in the decimal d=0.2h6,

Tags: Difficulty: 555-605 Level, Fractions/Ratios/Decimals

Go to page: 1, 2

vanidhar

20

28967

by: bumpbot

11 Apr 2024, 17:09

8

ER

If x and y are positive integers such that x > y and the least common

Tags: Difficulty: 555-605 Level, Divisibility/Multiples/Factors, Number Properties

Kritisood

4

1327

by: bumpbot

11 Apr 2024, 15:06

7

ER

Is y a positive integer? (1) y^2 - 1 = 0 (2) y < 1

Tags: Difficulty: 555-605 Level, Algebra, Number Properties

Sanya15

4

1638

by: bumpbot

11 Apr 2024, 14:58

7

ER

Mallory estimated both the number of pages and the number of days requ

Tags: Difficulty: 555-605 Level, Fractions/Ratios/Decimals, Number Properties

mangamma

2

2732

by: bumpbot

11 Apr 2024, 14:55

22

ER

If N is a positive integer

Tags: Difficulty: 555-605 Level, Divisibility/Multiples/Factors, Number Properties

EgmatQuantExpert

10

5265

by: bumpbot

11 Apr 2024, 14:53

14

ER

Each of the letters in the table above represents one of the numbers 1

Tags: Difficulty: 555-605 Level, Graphs and Illustrations, Number Properties

GMATBusters

9

4829

by: bumpbot

11 Apr 2024, 14:47

3

ER

Profit ratio is defined as the ratio of the profit in dollars to the

Tags: Difficulty: 555-605 Level, Fractions/Ratios/Decimals, Word Problems

Bunuel

3

277

by: anushridi

11 Apr 2024, 13:05

68

ER

Is x > 0? (1) x^6 > x^7 (2) x^7 > x^8

Tags: Difficulty: 555-605 Level, Inequalities

aDAMS

14

12750

by: bumpbot

11 Apr 2024, 11:33

390

ER

Of the four numbers represented on the number line above, is

Tags: Difficulty: 555-605 Level, Number Properties

Go to page: 1, 2

devinawilliam83

21

55942

by: bumpbot

11 Apr 2024, 11:27

5

ER

What is the remainder when 7 + 10n is divided by 3, if n is a single

Tags: Difficulty: 505-555 Level, Number Properties, Remainders

unraveled

4

2479

by: bumpbot

11 Apr 2024, 09:42

4

ER

Is the product of two positive integers x and y divisible by 8?

Tags: Difficulty: 505-555 Level, Divisibility/Multiples/Factors, Number Properties

kiran120680

4

2403

by: bumpbot

11 Apr 2024, 09:35

GMAT Data Sufficiency (DS)