GMAT Club Forum

769

ER

100 Hardest and easiest questions for DS as of March 2024

Bunuel

19

160607

by: bumpbot

28 Nov 2023, 14:32

1416

ER

DS Question Directory by Topic and Difficulty

Tags: Difficulty: 655-705 Level

bb

0

446393

by: bb

07 Mar 2012, 08:58

1

ER

Is this a rt triangle

Tags: Poor Quality

agnok

5

2894

by: trunksli

20 Aug 2010, 21:34

19

ER

If n is an integer, what is the remainder when n is divided

Tags: Poor Quality

vcbabu

5

13543

by: IanStewart

21 Jun 2009, 10:40

1

Who is the fastest among the three workers a, b and c? (1) a

Tags: Poor Quality

gmatblast

5

17750

by: gmatblast

21 Jan 2004, 09:33

4

ER

w, x and y are positive integers such that w ≤ x ≤ y. If the average (

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

Bunuel

4

5382

by: bumpbot

25 Apr 2024, 13:42

7

ER

Are integers a and b consecutive?

Tags: Difficulty: Sub 505 Level, Number Properties

Bunuel

4

3854

by: bumpbot

25 Apr 2024, 06:05

9

ER

Ten different items are for sale in a store, and each is

Tags: Difficulty: 655-705 Level, Statistics and Sets Problems

manimani

4

5552

by: thelastskybender

25 Apr 2024, 00:59

3

ER

Is the sum of four different positive prime integers an odd integer?

Tags: Difficulty: Sub 505 Level, Number Properties

Bunuel

4

4265

by: bumpbot

24 Apr 2024, 23:11

7

ER

For integers a and b, is the expression ab – b even?

Tags: Difficulty: 555-605 Level, Number Properties

Bunuel

4

5719

by: bumpbot

24 Apr 2024, 22:56

15

ER

If p and q are both positive integers, then is p divisible by 9?

Tags: Difficulty: 605-655 Level, Fractions/Ratios/Decimals, Number Properties

KSBGC

4

1951

by: bumpbot

24 Apr 2024, 05:29

20

ER

A store purchased a Brand C computer for the same amount that it paid

Tags: Difficulty: 705-805 Level, Percent and Interest Problems, Word Problems

Bunuel

4

6449

by: nisen20

24 Apr 2024, 02:09

11

ER

Is the integer n even? (1) n – 5 is an odd integer (2) n/5 is an even

Tags: Difficulty: Sub 505 Level, Number Properties

Orange08

4

11541

by: bumpbot

23 Apr 2024, 19:47

10

ER

Last month Alex spent $91 on video game rentals, spending $5 for each

Tags: Difficulty: 805+ Level, Word Problems

MclLaurent

4

1911

by: Roisavillow

23 Apr 2024, 13:18

7

ER

If A = abc, a three digit number where a is the hundreds digit, b is t

Tags: Difficulty: 705-805 Level, Number Properties

Bunuel

4

2537

by: Bunuel

22 Apr 2024, 06:58

17

ER

Event E and event F are independent. Is the probability that both even

Tags: Difficulty: 655-705 Level, Probability

MathRevolution

4

3129

by: bumpbot

21 Apr 2024, 21:50

8

ER

Company Y employs c women and d men. Do the women at Company Y earn an

Tags: Difficulty: 655-705 Level, Word Problems

Bunuel

4

4676

by: bumpbot

21 Apr 2024, 11:12

31

ER

The average (arithmetic mean) cost of three computer models is $900.

Tags: Difficulty: 705-805 Level, Word Problems

GinGMAT

4

6439

by: bumpbot

21 Apr 2024, 00:10

20

ER

If John produces n units of an item in t hours, what is the value of

Tags: Difficulty: 805+ Level, Work/Rate Problems

Bunuel

4

2537

by: bumpbot

20 Apr 2024, 17:01

7

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

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

PriyankaPalit7

4

2646

by: bumpbot

19 Apr 2024, 16:40

8

ER

Ed has some fish, and the combined weight of all the fish is 100 pound

Tags: Difficulty: 805+ Level, Word Problems

Bunuel

4

2268

by: bumpbot

19 Apr 2024, 16:24

7

ER

At a certain fiorist shop, roses can be purchased either individually

Tags: Difficulty: 805+ Level, Word Problems

Bunuel

4

1954

by: bumpbot

19 Apr 2024, 16:08

10

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

Tags: Difficulty: 705-805 Level, Percent and Interest Problems, Word Problems

PriyankaPalit7

4

3486

by: bumpbot

18 Apr 2024, 07:53

2

ER

A stock returned what percent of its cost in a dividend at the end of

Tags: Difficulty: 555-605 Level, Word Problems

Bunuel

4

350

by: EDDIE98

17 Apr 2024, 04:34

4

ER

What is the largest number of rectangular boxes which can be stored in

Tags: Difficulty: 605-655 Level, Geometry

soumya170293

4

1778

by: bumpbot

16 Apr 2024, 20:19

14

ER

b, c, d and e are positive integers. When b is divided by c, the quoti

Tags: Difficulty: 805+ Level, Remainders

BrentGMATPrepNow

4

2771

by: bumpbot

16 Apr 2024, 08:56

37

ER

12 Days of Christmas GMAT Competition - Day 7: j, 9, k, and m are in a

Tags: Difficulty: 805+ Level, Sequences

Bunuel

4

2900

by: bumpbot

16 Apr 2024, 03:37

10

ER

x^n + x^n + x^n + x^n = x^(n + 1). What is the value of n?

Tags: Difficulty: 605-655 Level, Algebra, Exponents/Powers

Bunuel

4

4825

by: Bunuel

16 Apr 2024, 03:06

10

ER

Ted and Rali run one lap on a circular track. Ted runs in a circular

Tags: Difficulty: 655-705 Level, Distance/Rate Problems, Divisibility/Multiples/Factors, Word Problems

Bunuel

4

2479

by: bumpbot

14 Apr 2024, 23:42

7

ER

If 3 years ago Jennifer was 22 years old, how old is Carmen now?

Tags: Difficulty: Sub 505 Level, Word Problems

Bunuel

4

5723

by: bumpbot

14 Apr 2024, 07:31

18

In a class, teacher decides to choose two students for a certain exper

Tags: Difficulty: 555-605 Level, Arithmetic, Combinations

amanvermagmat

4

6358

by: bumpbot

14 Apr 2024, 06:51

8

ER

If n is a positive integer, are n and 1 the only positive divisors of

Tags: Difficulty: Sub 505 Level, Number Properties

GMATBusters

4

7448

by: bumpbot

13 Apr 2024, 23:29

2

ER

X, Y, Z, W are all positive.. What is the value of the ratio Z:W ?

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

amanvermagmat

4

1375

by: bumpbot

13 Apr 2024, 13:31

15

ER

If a^n ≠ 0 and n is a positive integer, is n odd?

Tags: Difficulty: 655-705 Level, Exponents/Powers

jellybean23

4

4271

by: bumpbot

13 Apr 2024, 13:01

1

Gregory wants to invest in two shares Alpha and Beta. If the share

Tags: Difficulty: 705-805 Level, Number Properties

Kritisood

4

1305

by: Fish181

13 Apr 2024, 11:21

44

ER

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

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

Bunuel

4

12792

by: bumpbot

13 Apr 2024, 03:46

9

ER

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

Tags: Difficulty: 705-805 Level, Overlapping Sets

Russ19

4

1870

by: Rohan271

12 Apr 2024, 05:13

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

1351

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

1714

by: bumpbot

11 Apr 2024, 14:58

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

2548

by: bumpbot

11 Apr 2024, 09:42

4

ER

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

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

kiran120680

4

2462

by: bumpbot

11 Apr 2024, 09:35

6

ER

Is the product of the range and median of the set of 10

Tags: Difficulty: 605-655 Level, Statistics and Sets Problems

Kaushik786

4

1008

by: bumpbot

11 Apr 2024, 05:55

3

ER

If P and Q are sectors in two different circles such that the area of

Tags: Difficulty: 705-805 Level, Geometry

Bunuel

4

1062

by: bumpbot

10 Apr 2024, 01:36

17

ER

What is the average of x, y, and z?

Tags: Difficulty: 555-605 Level, Algebra

Bunuel

4

9476

by: bumpbot

09 Apr 2024, 02:42

13

ER

What is the remainder when a three-digit integer ABC (where A, B, and

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

Bunuel

4

2625

by: Fish181

05 Apr 2024, 12:41

20

ER

If q is a positive integer less than 17 and r is the remainder when 17

Tags: Difficulty: 655-705 Level, Number Properties, Remainders

rraggio

4

15001

by: bumpbot

04 Apr 2024, 01:31

14

ER

John starts reading a book from the first page onwards and reads eac

Tags: Difficulty: 655-705 Level, Word Problems, Work/Rate Problems

rheam25

4

5749

by: bumpbot

03 Apr 2024, 06:40

1

ER

A set of numbers has a property that for any number t in the set, t+1

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

sset92

4

407

by: Bunuel

03 Apr 2024, 01:27

12

ER

Fifty percent of all the students attending a school on a certain day

Tags: Difficulty: 605-655 Level, Word Problems

Bunuel

4

4770

by: bumpbot

02 Apr 2024, 11:33

5

If m and n are integers, is m^2n^2 an odd?

Tags: Difficulty: 555-605 Level, Number Properties

QuantMadeEasy

4

1378

by: bumpbot

02 Apr 2024, 10:23

5

ER

If a = 100, what is the value of c?

Tags: Difficulty: Sub 505 Level, Geometry

BrentGMATPrepNow

4

3510

by: bumpbot

31 Mar 2024, 06:39

102

ER

If k is a positive integer and the tens digit of k+5 is 4

Tags: Difficulty: 605-655 Level, Fractions/Ratios/Decimals, Number Properties

bekbek

4

21150

by: bumpbot

31 Mar 2024, 03:12

GMAT Data Sufficiency (DS)