GMAT Club Forum

ER

100 Hardest and easiest questions for PS as of April

655-705 Level

655-705 Level hide tags

1, 2

Bunuel

21 Aug 2015, 03:49

972

22

257,080

by: bb

30 Mar 2024, 10:13

ER

GMAT PS Question Directory by Topic & Difficulty

505-555 Level +6 tags

505-555 Level, 555-605 Level, 605-655 Level, 655-705 Level, 705-805 Level, 805+ Level, Sub 505 Level hide tags

bb

22 Feb 2012, 11:27

2,848

0

1,180,788

by: bb

22 Feb 2012, 11:27

ER

How many different 5-letter groups can be selected

805+ Level | Combinations

805+ Level | Combinations hide tags

Bunuel

24 Jun 2023, 05:39

6

1

1,187

by: gmatophobia

24 Jun 2023, 07:07

ER

What is the value of 1*1! + 2*2! + 3*3! + ... + n*n! ?

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

24 Jun 2023, 12:48

5

1

1,144

by: gmatophobia

24 Jun 2023, 13:11

ER

In how many ways can 3 identical blue roses and 3

705-805 Level | Combinations

705-805 Level | Combinations hide tags

Bunuel

24 Jun 2023, 13:40

6

1

964

by: gmatophobia

25 Jun 2023, 01:46

ER

3969^(1/2)/0.003969^(1/2) =

555-605 Level | Arithmetic, Roots

555-605 Level | Arithmetic, Roots hide tags

Bunuel

25 Jun 2023, 01:42

1

1,238

by: TheBipedalHorse

25 Jun 2023, 07:52

ER

A fresh water aquarium contains Molly fish and Guppy

505-555 Level | Fractions/Ratios/Decimals

505-555 Level | Fractions/Ratios/Decimals hide tags

Bunuel

26 Jun 2023, 01:30

2

1

943

by: 8.toastcrunch

26 Jun 2023, 02:18

ER

A number of tournament games is represented as G(n)

555-605 Level | Combinations

555-605 Level | Combinations hide tags

Bunuel

26 Jun 2023, 11:00

1

814

by: gmatophobia

26 Jun 2023, 11:15

ER

Sixty stones are placed into four jars in such a way

555-605 Level | Fractions/Ratios/Decimals

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

Bunuel

08 Jul 2022, 18:30

2

1

1,080

by: $!vakumar.m

26 Jun 2023, 20:34

ER

What is the value of 1/(2 + 1) + 1/(3 + 2) + 1/(4 + 3)

605-655 Level | Algebra +2 tags

605-655 Level | Algebra, Arithmetic, Roots hide tags

Bunuel

28 Jun 2023, 03:00

6

1

1,473

by: chetan2u

28 Jun 2023, 05:07

ER

Working alone, an apprentice bricklayer takes twice as

555-605 Level | Work Problems

555-605 Level | Work Problems hide tags

Bunuel

28 Jun 2023, 01:46

1

1,001

by: GMATinsight

28 Jun 2023, 09:27

ER

It takes three laborers ten hours to install four

505-555 Level | Work Problems

505-555 Level | Work Problems hide tags

Bunuel

28 Jun 2023, 02:41

2

1

1,022

by: GMATinsight

28 Jun 2023, 09:30

ER

If n is an integer number, and m=115n, then m must be

Sub 505 Level | Divisibility/Multiples/Factors

Sub 505 Level | Divisibility/Multiples/Factors hide tags

Bunuel

29 Jun 2023, 01:30

2

1

881

by: 8.toastcrunch

29 Jun 2023, 05:44

In a class of 100 students, the students are given a

605-655 Level | Overlapping Sets

605-655 Level | Overlapping Sets hide tags

rn1112

30 Jun 2023, 09:42

2

1

970

by: gmatophobia

30 Jun 2023, 10:11

ER

Adam, Ben, and Charles take an exam, and their average

505-555 Level | Statistics and Sets Problems

505-555 Level | Statistics and Sets Problems hide tags

Bunuel

30 Jun 2023, 11:45

4

1

693

by: Crater

30 Jun 2023, 17:00

ER

In a certain district, the minimum of the monthly

655-705 Level | Statistics and Sets Problems

655-705 Level | Statistics and Sets Problems hide tags

Bunuel

28 Jun 2023, 00:12

4

1

754

by: $!vakumar.m

01 Jul 2023, 05:08

If the median of 127 numbers is 35, which of the

705-805 Level | Statistics and Sets Problems

705-805 Level | Statistics and Sets Problems hide tags

Laila12618

02 Jul 2023, 06:36

1

903

by: gmatophobia

02 Jul 2023, 08:36

ER

[x] is the greatest integer less than or equal to x.

505-555 Level | Functions and Custom Characters

505-555 Level | Functions and Custom Characters hide tags

Bunuel

03 Jul 2023, 11:45

2

1

761

by: hinasingh

03 Jul 2023, 11:59

ER

When playing a coin-tossing game, Tom wins $5 when the

505-555 Level | Probability

505-555 Level | Probability hide tags

Bunuel

07 Jul 2023, 03:45

2

1

783

by: Can,Will

07 Jul 2023, 03:52

ER

If x^2 = x + 1, then which of the following must equal

555-605 Level | Algebra

555-605 Level | Algebra hide tags

Bunuel

10 Jul 2023, 07:45

6

1

1,093

by: TheBipedalHorse

10 Jul 2023, 08:23

ER

Taking 17 in place of 13 as the coefficient of x in

555-605 Level | Algebra

555-605 Level | Algebra hide tags

Bunuel

12 Jul 2023, 01:30

2

1

881

by: walterwhite756

12 Jul 2023, 02:29

ER

What is the value of (2^2020 + 2^2018)/(2^2020 -

505-555 Level | Exponents

505-555 Level | Exponents hide tags

Bunuel

12 Jul 2023, 07:45

1

631

by: Aishyk97

12 Jul 2023, 08:05

ER

(0.0004)(0.000005)/200,000 is equal to which of the

505-555 Level | Arithmetic

505-555 Level | Arithmetic hide tags

Bunuel

13 Jul 2023, 03:45

3

1

816

by: IshanSaini

13 Jul 2023, 04:12

ER

A safe lock is composed of three disks: the first disk

555-605 Level | Probability

555-605 Level | Probability hide tags

Bunuel

14 Jul 2023, 01:23

2

1

1,037

by: gmatophobia

14 Jul 2023, 04:10

ER

If A = 3^11, and B = -3^11, what is the value of 2^(A

Sub 505 Level | Exponents

Sub 505 Level | Exponents hide tags

Bunuel

11 Jul 2023, 03:45

1

798

by: BrushMyQuant

14 Jul 2023, 11:28

ER

If r is an integer, and 700 < 10!/(10 - r)! <

505-555 Level | Inequalities

505-555 Level | Inequalities hide tags

Bunuel

14 Jul 2023, 11:45

1

797

by: walterwhite756

14 Jul 2023, 11:56

ER

A builder decided to build a farmhouse in 40 days. He

555-605 Level | Work Problems

555-605 Level | Work Problems hide tags

Bunuel

15 Jul 2023, 05:21

4

1

2,254

by: hinasingh

15 Jul 2023, 06:13

Rohan took pure milk and started to dilute it with

705-805 Level | Fractions/Ratios/Decimals, Mixture Problems

705-805 Level | Fractions/Ratios/Decimals, Mixture Problems hide tags

pintukr

16 Jul 2023, 05:08

7

1

1,397

by: gmatophobia

16 Jul 2023, 08:10

ER

A list of 18 numbers is arranged from the least to the

655-705 Level | Algebra, Statistics and Sets Problems

655-705 Level | Algebra, Statistics and Sets Problems hide tags

Bunuel

16 Jul 2023, 10:04

5

1

1,287

by: gmatophobia

16 Jul 2023, 10:24

ER

If the average (arithmetic mean) of positive integers

505-555 Level | Min-Max Problems

505-555 Level | Min-Max Problems hide tags

Bunuel

14 Jul 2023, 03:45

1

954

by: $!vakumar.m

16 Jul 2023, 11:02

ER

How many positive integers less than 500 can be formed

655-705 Level | Combinations

655-705 Level | Combinations hide tags

Bunuel

17 Jul 2023, 02:10

4

1

1,213

by: gmatophobia

17 Jul 2023, 02:30

ER

An express train leaves New York at 3pm and reaches

655-705 Level | Distance Problems

655-705 Level | Distance Problems hide tags

Bunuel

16 Jul 2023, 14:14

3

1

1,114

by: IshanSaini

17 Jul 2023, 07:09

ER

In a poll, 1200 participants expressed their

605-655 Level | Overlapping Sets

605-655 Level | Overlapping Sets hide tags

Bunuel

16 Jul 2023, 05:51

4

1

1,105

by: Archit3110

17 Jul 2023, 23:42

What is the units digit of (23)^7 * (12)^8 * (517)^22 ?

505-555 Level | Exponents, Number Properties

505-555 Level | Exponents, Number Properties hide tags

8.toastcrunch

19 Jul 2023, 01:52

3

1

1,930

by: gmatophobia

19 Jul 2023, 02:42

ER

At a certain riding school, students are randomly

655-705 Level | Probability

655-705 Level | Probability hide tags

Bunuel

16 Jul 2023, 14:00

3

1

964

by: learnwithrohan

20 Jul 2023, 06:21

A hose fills half a bucket in 16 minutes.

805+ Level | Word Problems, Work Problems

805+ Level | Word Problems, Work Problems hide tags

GianKR

19 Jul 2023, 15:00

10

1

1,934

by: GianKR

21 Jul 2023, 13:59

The length of a ladder is exactly equal to the height

555-605 Level | Geometry

555-605 Level | Geometry hide tags

pintukr

24 Jul 2023, 09:14

2

1

831

by: gmatophobia

24 Jul 2023, 10:44

ER

What is the value of (2^5 + 2^6 + 2^7 + 2^8)^2?

555-605 Level | Exponents

555-605 Level | Exponents hide tags

Bunuel

31 Jul 2023, 03:45

1

640

by: JeffTargetTestPrep

31 Jul 2023, 07:33

ER

In how many ways can the letters of the word DOUBLE be

655-705 Level | Combinations

655-705 Level | Combinations hide tags

Bunuel

31 Jul 2023, 05:59

3

1

1,147

by: JeffTargetTestPrep

31 Jul 2023, 07:59

ER

For which of the following lists of 5 numbers is the

505-555 Level | Statistics and Sets Problems

505-555 Level | Statistics and Sets Problems hide tags

Bunuel

01 Aug 2023, 01:30

1

835

by: nasgmatbag

01 Aug 2023, 08:35

ER

An inheritance is to be divided with heir A receiving

Sub 505 Level | Percent and Interest Problems

Sub 505 Level | Percent and Interest Problems hide tags

Bunuel

02 Aug 2023, 01:30

2

1

762

by: Paras96

02 Aug 2023, 05:32

ER

For which of the following integers n, is the number

555-605 Level | Number Properties

555-605 Level | Number Properties hide tags

Bunuel

03 Aug 2023, 01:30

3

1

973

by: Paras96

03 Aug 2023, 05:50

ER

A man is travelling on a boat upstream a certain

705-805 Level | Distance Problems

705-805 Level | Distance Problems hide tags

Bunuel

16 Jul 2023, 14:27

6

1

2,795

by: Regor60

04 Aug 2023, 13:29

ER

A particular stock is valued at $50 per share. If the

Sub 505 Level | Percent and Interest Problems

Sub 505 Level | Percent and Interest Problems hide tags

Bunuel

07 Aug 2023, 01:30

1

1,131

by: MannPatel

07 Aug 2023, 22:30

ER

If the mean of 6 consecutive integers is 8.5, what is

Sub 505 Level | Number Properties

Sub 505 Level | Number Properties hide tags

Bunuel

07 Aug 2023, 01:30

3

1

810

by: Archit3110

08 Aug 2023, 00:53

ER

Paul's average (arithmetic mean) for 3 tests was 85.

Sub 505 Level | Statistics and Sets Problems

Sub 505 Level | Statistics and Sets Problems hide tags

Bunuel

09 Aug 2023, 01:30

1

907

by: GMATinsight

09 Aug 2023, 02:29

ER

If the product of the roots of the equation x^2 8x + K

555-605 Level | Algebra

555-605 Level | Algebra hide tags

Bunuel

10 Aug 2023, 01:30

5

1

951

by: GMATinsight

10 Aug 2023, 01:37

ER

A data set contains three elements: a, b, and c. If a

605-655 Level | Statistics and Sets Problems

605-655 Level | Statistics and Sets Problems hide tags

RenB

10 Aug 2023, 19:41

3

1

648

by: chetan2u

10 Aug 2023, 21:33

ER

If st/u is an integer, which of the following must

555-605 Level | Number Properties

555-605 Level | Number Properties hide tags

Bunuel

01 Aug 2023, 01:30

2

1

1,168

by: AryaSwagat

15 Aug 2023, 09:21

ER

A theater sells childrens tickets for two-thirds of

Sub 505 Level | Word Problems

Sub 505 Level | Word Problems hide tags

Bunuel

04 Aug 2023, 01:30

1

747

by: AryaSwagat

15 Aug 2023, 10:11

ER

If \sqrt{1 + \sqrt{1 +\sqrt{ x} = 2, then x =

Sub 505 Level | Algebra, Roots

Sub 505 Level | Algebra, Roots hide tags

Bunuel

15 Aug 2023, 12:00

9

1

2,753

by: gmatophobia

15 Aug 2023, 13:22

ER

If a, b, and c, are positive integers such that 1 <

Sub 505 Level | Algebra, Number Properties

Sub 505 Level | Algebra, Number Properties hide tags

honchos

25 Aug 2014, 02:36

4

1

3,688

by: Bunuel

15 Aug 2023, 15:10

Problem Solving (PS)