GMAT Club Forum

772

ER

100 Hardest and easiest questions for DS as of April 2024

Bunuel

19

161547

by: bumpbot

28 Nov 2023, 14:32

1418

ER

DS Question Directory by Topic and Difficulty

Tags: Difficulty: 655-705 Level

bb

0

447671

by: bb

07 Mar 2012, 08:58

150

ER

In triangle ABC above, what is the length of side BC?

Tags: Difficulty: 655-705 Level, Geometry

Bunuel

19

39476

by: bumpbot

30 Apr 2024, 05:59

9

Q and X are positive integers greater than 1. Is it possible...

Tags: Difficulty: 805+ Level, Number Properties

akshayk

8

2747

by: bumpbot

30 Apr 2024, 06:09

11

ER

Each of the 120 students in a certain dormitory is either a junior or

Tags: Difficulty: Sub 505 Level, Word Problems

parkhydel

2

5658

by: bumpbot

30 Apr 2024, 06:18

21

A group of friends dined at a restaurant and paid a total of $132 for

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

ShortcutoSpeed

5

2520

by: Freddy12

30 Apr 2024, 07:03

29

ER

Sets A and B each consist of three terms selected from the 5

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

daviesj

7

8087

by: bumpbot

30 Apr 2024, 08:08

5

ER

For a finite sequence of nonzero integers, the percentage of variation

Tags: Difficulty: 705-805 Level, Sequences

filipembribeiro

2

1519

by: bumpbot

30 Apr 2024, 08:33

54

ER

If a and b are positive itegers, what is the value of a + b?

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

Stiv

8

12664

by: bumpbot

30 Apr 2024, 10:03

18

ER

If y is an integer, is y^3 divisible by 8? (1) y is even. (2) y^3 - y

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

Bunuel

7

5604

by: bumpbot

30 Apr 2024, 10:07

6

ER

Vijay made a telephone call. If Vijay's total cost for the call was

Tags: Difficulty: 555-605 Level, Word Problems

Bunuel

5

395

by: stne

30 Apr 2024, 11:43

1

ER

50% of the factory workers are not older than 30 years old. What perce

Tags: Difficulty: 555-605 Level, Percent and Interest Problems

Bunuel

2

3181

by: bumpbot

30 Apr 2024, 14:59

3

ER

The sum of the lengths of two pieces of rope is 65 feet. How long is

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

Bunuel

3

3166

by: bumpbot

30 Apr 2024, 15:31

140

ER

After winning 50 percent of the first 20 games it played, Team A won

Tags: Difficulty: 555-605 Level, Percent and Interest Problems

Bunuel

12

39978

by: bumpbot

30 Apr 2024, 15:44

22

ER

If a, b, and c are positive integers, what is the remainder

Tags: Difficulty: 555-605 Level, Remainders

thevenus

4

6282

by: bumpbot

30 Apr 2024, 18:59

198

ER

At a two-day seminar, 90 percent of those registered attended the semi

Tags: Difficulty: 555-605 Level, Overlapping Sets

TeHCM

9

51591

by: bumpbot

30 Apr 2024, 23:20

7

ER

In the period between 1975 and 1985, the population of each of the …ve

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

Noshad

2

1931

by: bumpbot

30 Apr 2024, 23:39

13

ER

The table above shows the results of a survey of 100 customers of a pa

Tags: Difficulty: 655-705 Level, Word Problems

Bunuel

6

3100

by: bumpbot

30 Apr 2024, 23:46

Harry is a salesman. Is the time taken by Harry to sell a box of

Tags: Difficulty: 605-655 Level, Work/Rate Problems

Pranjall8

3

301

by: nikaro

01 May 2024, 02:21

40

ER

If |x + 2| = 4, what is the value of x ? (1) x^2 ≠ 4 (2) x^2 = 36

Tags: Difficulty: 505-555 Level, Absolute Values/Modulus

Bunuel

6

29107

by: bumpbot

01 May 2024, 02:25

9

ER

Of the people stand in a line waiting for service, 20% have waited for

Tags: Difficulty: 655-705 Level, Word Problems

Bunuel

4

475

by: Nidzo

01 May 2024, 05:52

29

ER

Two people are to be selected at random from a certain group that

Tags: Difficulty: 805+ Level, Probability

asdfghjkl5271

7

3281

by: MartyMurray

01 May 2024, 09:01

175

ER

A country's per capita national debt is its national debt divided by

Tags: Difficulty: 705-805 Level, Word Problems

gmatt1476

19

19380

by: GMATGuruNY

01 May 2024, 13:07

102

ER

Bunuel's Algebra DS Diagnostic Test

Tags: Difficulty: 505-555 Level, Difficulty: 555-605 Level, Difficulty: 655-705 Level, Absolute Values/Modulus, Algebra, Combinations, Exponents/Powers, Fractions/Ratios/Decimals, Functions and Custom Characters, Inequalities, Min/Max Problems, Percent and Interest Problems, Roots

Go to page: 1, 2, 3

Bunuel

45

15542

by: unicornilove

01 May 2024, 17:13

95

ER

A scientist is studying bacteria whose cell population doubles at

Tags: Difficulty: 705-805 Level, Word Problems

mun23

12

21256

by: bumpbot

01 May 2024, 22:49

149

ER

What is the average (arithmetic mean) height of the n people in a cert

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

sandalphon

14

58395

by: bumpbot

01 May 2024, 22:57

25

ER

Two teams, X and Y played against each other in a tournament

Tags: Difficulty: 605-655 Level, Word Problems

eybrj2

5

8200

by: bumpbot

02 May 2024, 01:00

50

ER

What is the units digit of the three-digit integer N ?

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

Bunuel

15

7702

by: Bunuel

02 May 2024, 01:17

134

ER

At the beginning of the year, the Finance Committee and the Planning C

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

Bunuel

14

36115

by: Bunuel

02 May 2024, 02:48

212

ER

Any decimal that has only a finite number of nonzero digits

Tags: Difficulty: 505-555 Level, Fractions/Ratios/Decimals

Walkabout

12

41992

by: bumpbot

02 May 2024, 03:13

43

ER

What is the ratio of c to d?

Tags: Difficulty: 505-555 Level, Fractions/Ratios/Decimals

RSOHAL

11

34960

by: bumpbot

02 May 2024, 03:26

14

ER

How many more first-time jobless claims were filed in week P than in

Tags: Difficulty: Sub 505 Level, Word Problems

Bunuel

2

4694

by: bumpbot

02 May 2024, 04:45

2

ER

Jack is 4 years older than Daniel. What are their ages now?

Tags: Difficulty: Sub 505 Level, Word Problems

Bunuel

2

325

by: Nidzo

02 May 2024, 05:59

166

ER

Maria left home 1/4 hour after her husband and drove over the same rou

Tags: Difficulty: 555-605 Level, Distance/Rate Problems

parkhydel

16

17290

by: ScottTargetTestPrep

02 May 2024, 07:43

3

ER

Is p^2 divisible by 24? p is an integer. 1) p is divisible by 6 2) p^3

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

TheUltimateWinner

3

1616

by: Bunuel

02 May 2024, 10:13

2

ER

A bank compounds interest for its customers annually. How much

Tags: Difficulty: 505-555 Level, Percent and Interest Problems

Bunuel

2

348

by: Akkiiii

02 May 2024, 10:27

7

ER

Is √(56x) an integer?

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

honchos

4

5222

by: bumpbot

02 May 2024, 12:08

16

ER

Are the standard deviations of set A and set B the same? 1) n=6 2) S

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

BillyZ

4

2717

by: bumpbot

02 May 2024, 12:11

19

ER

Chris was in an electronic appliances store to buy an LED computer

Tags: Difficulty: 805+ Level, Non-Math Related

dpchen

11

2623

by: Bunuel

02 May 2024, 14:38

24

ER

Is the number of different prime factors of the positive integer p mor

Tags: Difficulty: 805+ Level, Number Properties

Bunuel

10

5927

by: bumpbot

02 May 2024, 18:40

130

ER

If -2x > 3y, is x negative? (1) y > 0 (2) 2x + 5y - 20 = 0

Tags: Difficulty: 705-805 Level, Inequalities

dimitri92

11

21225

by: bumpbot

02 May 2024, 21:21

49

ER

For Manufacturer M, the cost C of producing X units of its

Tags: Difficulty: 655-705 Level, Word Problems

anandsebastin

12

21328

by: bumpbot

03 May 2024, 00:55

6

ER

If a and b are single digits from 0 to 9, inclusive, what is the value

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

Bunuel

8

1835

by: bumpbot

03 May 2024, 04:38

3

ER

An old man distributed his estate worth x dollars to his three sons

Tags: Difficulty: 655-705 Level, Word Problems

Bunuel

2

397

by: Nidzo

03 May 2024, 05:12

43

ER

For nonnegative integers x and y, what is the remainder when

Tags: Difficulty: 805+ Level, Remainders

JJ2014

19

10019

by: bumpbot

03 May 2024, 11:12

70

ER

The difference between positive two-digit integer A and the smaller tw

Tags: Difficulty: 805+ Level, Divisibility/Multiples/Factors, Number Properties

Bunuel

12

6271

by: bumpbot

03 May 2024, 11:19

112

ER

In a certain senior class, 72 percent of the male students and 80 perc

Tags: Difficulty: 655-705 Level, Overlapping Sets

tejal777

11

30436

by: bumpbot

03 May 2024, 15:31

57

ER

The sum of two positive integers, m and n, is a multiple of

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

sps1604

9

8058

by: bumpbot

03 May 2024, 17:33

96

ER

When the positive number a is rounded to the nearest tenth

Tags: Difficulty: 705-805 Level, Number Properties

frankiegar

13

23380

by: bumpbot

03 May 2024, 21:56

83

ER

In the correctly-worked multiplication problem above, each symbol repr

Tags: Difficulty: 805+ Level, Arithmetic, Number Properties

Bunuel

7

12082

by: bumpbot

04 May 2024, 00:05

3

ER

Pat has coins worth either $0.10 or $0.50. If she has more than five

Tags: Difficulty: 605-655 Level, Word Problems

Bunuel

2

863

by: Bunuel

04 May 2024, 02:15

58

ER

In a certain year the United Nations' total expenditures were $1.6 bil

Tags: Difficulty: 605-655 Level, Percent and Interest Problems

GHIBI

7

19730

by: bumpbot

04 May 2024, 02:36

GMAT Data Sufficiency (DS)