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

969

22

256,552

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

2,845

0

1,180,084

by: bb

22 Feb 2012, 11:27

ER

Of the 13 employees in a certain department, 1 has an

505-555 Level | Statistics and Sets Problems

505-555 Level | Statistics and Sets Problems hide tags

DelSingh

24 Feb 2013, 07:47

22

7

16,476

by: bumpbot

03 Apr 2023, 05:32

ER

The subsets of the set {s, t, u} consisting of the

705-805 Level | Statistics and Sets Problems

705-805 Level | Statistics and Sets Problems hide tags

saxenarahul021

27 Nov 2012, 00:54

34

13

7,826

by: bumpbot

03 Apr 2023, 05:56

ER

How many numbers of the form a × b, where a and b are

705-805 Level | Number Properties

705-805 Level | Number Properties hide tags

Bunuel

15 Oct 2021, 08:45

4

3

1,698

by: bumpbot

03 Apr 2023, 06:37

ER

In a race, the speeds of A and B are in the ratio 3:4,

605-655 Level | Distance/Rate Problems

605-655 Level | Distance/Rate Problems hide tags

Bunuel

12 Oct 2022, 09:08

7

2

1,613

by: Muskangupta0223

03 Apr 2023, 07:52

ER

If the lengths of the sides of a triangle are x, x + 1

505-555 Level | Geometry

505-555 Level | Geometry hide tags

Bunuel

24 Aug 2017, 02:06

8

6

2,532

by: bumpbot

03 Apr 2023, 08:09

ER

The point R in the xy-plane with coordinates (–8, 3)

555-605 Level | Coordinate Geometry

555-605 Level | Coordinate Geometry hide tags

shridhar786

28 Sep 2019, 12:03

32

6

4,325

by: bumpbot

03 Apr 2023, 08:28

ER

If √√√(3x) = 4√(2x), what is the greatest

555-605 Level | Algebra, Roots

555-605 Level | Algebra, Roots hide tags

Bunuel

07 Dec 2018, 02:35

27

10

6,780

by: bumpbot

03 Apr 2023, 09:23

ER

If |x| < 20 and |x – 8| > |x + 4|, which of

555-605 Level | Absolute Values/Modulus, Inequalities

555-605 Level | Absolute Values/Modulus, Inequalities hide tags

mikemcgarry

25 Nov 2016, 11:44

199

19

15,237

by: gmatophobia

03 Apr 2023, 09:43

ER

For integers x and y, 25^(10)*100^x=2^y. What is the

555-605 Level | Exponents/Powers

555-605 Level | Exponents/Powers hide tags

Bunuel

09 Mar 2022, 04:15

13

2

1,659

by: bumpbot

03 Apr 2023, 10:06

ER

2(x 2)/5 + (24 12x)/6 + 2x = 4x/5 + 3, what is the

555-605 Level | Algebra

555-605 Level | Algebra hide tags

Bunuel

10 Mar 2022, 02:30

6

2

1,991

by: bumpbot

03 Apr 2023, 10:08

ER

If 100 < x^2 < 225, what is the greatest

605-655 Level | Divisibility/Multiples/Factors

605-655 Level | Divisibility/Multiples/Factors hide tags

Bunuel

09 Feb 2022, 03:45

4

3

1,507

by: bumpbot

03 Apr 2023, 10:14

ER

A car part is made using two metals: A and B. Metal A

605-655 Level | Word Problems

605-655 Level | Word Problems hide tags

Bunuel

10 Feb 2022, 08:45

3

2

1,183

by: bumpbot

03 Apr 2023, 10:17

ER

Which of the following is NOT a prime factor of

605-655 Level | Divisibility/Multiples/Factors, Exponents/Powers

605-655 Level | Divisibility/Multiples/Factors, Exponents/Powers hide tags

HarveyS

19 Jan 2014, 01:15

35

7

12,255

by: bumpbot

03 Apr 2023, 10:36

ER

In a row of 30 seats, six team of 4 persons each will

805+ Level | Combinations

805+ Level | Combinations hide tags

mikemcgarry

15 Sep 2016, 16:11

24

6

3,245

by: bumpbot

03 Apr 2023, 11:44

ER

If k is a multiple of 3 and k = (m^2)n, where m and n

605-655 Level | Divisibility/Multiples/Factors +2 tags

605-655 Level | Divisibility/Multiples/Factors, Must or Could be True Questions, Number Properties hide tags

megafan

04 Feb 2013, 13:34

42

8

8,112

by: bumpbot

03 Apr 2023, 12:07

ER

Tom will cultivate bacteria. The number of bacteria he

605-655 Level | Percent and Interest Problems

605-655 Level | Percent and Interest Problems hide tags

srij13

26 May 2019, 23:43

13

7

1,810

by: bumpbot

03 Apr 2023, 17:04

ER

In a survey about potential presidential candidates A

655-705 Level | Overlapping Sets

655-705 Level | Overlapping Sets hide tags

IEsailor

14 Jun 2011, 13:29

39

14

8,540

by: FarhinR

03 Apr 2023, 23:04

ER

How many 8 digit cell phone numbers are there in which

805+ Level | Probability

805+ Level | Probability hide tags

LMP

01 Aug 2019, 07:16

16

6

4,105

by: bumpbot

03 Apr 2023, 23:40

ER

In the diagram to the left, squares A, B, and C have

505-555 Level | Geometry

505-555 Level | Geometry hide tags

Bunuel

13 Feb 2023, 00:27

2

1,096

by: yannichc

04 Apr 2023, 00:14

ER

A certain family consists of 8 adult members,

555-605 Level | Probability

555-605 Level | Probability hide tags

Gian

31 Jul 2013, 13:44

13

8

4,093

by: bumpbot

04 Apr 2023, 00:32

ER

ACME hardware is going to make a new soil blend by

Sub 505 Level | Mixture Problems

Sub 505 Level | Mixture Problems hide tags

Bunuel

13 Jan 2021, 03:00

11

4

2,513

by: KIP22

04 Apr 2023, 00:56

ER

Seven ducks, an adult male, an adult female, and 5

505-555 Level | Combinations

505-555 Level | Combinations hide tags

Bunuel

27 Apr 2017, 02:18

10

5

2,574

by: bumpbot

04 Apr 2023, 01:50

ER

If n is an integer, which of the following must be

Sub 505 Level | Must or Could be True Questions, Number Properties

Sub 505 Level | Must or Could be True Questions, Number Properties hide tags

1, 2

Bunuel

18 Sep 2012, 02:55

40

23

60,760

by: bumpbot

04 Apr 2023, 02:15

ER

A student scored 78% in X number of tests. If she was

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Dojima

03 Apr 2023, 02:01

2

4

1,431

by: rxb266

04 Apr 2023, 04:28

ER

A parking lot has 16 spaces in a row. Twelve cars

805+ Level | Probability

805+ Level | Probability hide tags

Noshad

20 Mar 2019, 05:59

16

6

5,468

by: bumpbot

04 Apr 2023, 05:02

ER

A scientist placed ten bacteria cells in a glass jar.

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

10 Jul 2020, 03:50

5

1,409

by: bumpbot

04 Apr 2023, 05:55

ER

During an experiment, the growth rate of a bacteria

555-605 Level | Word Problems

555-605 Level | Word Problems hide tags

Bunuel

04 May 2021, 02:15

2

4

1,658

by: bumpbot

04 Apr 2023, 05:57

ER

A certain population of bacteria doubles every 10

505-555 Level | Exponents/Powers, Word Problems

505-555 Level | Exponents/Powers, Word Problems hide tags

Bunuel

03 Dec 2014, 08:23

22

9

11,361

by: bumpbot

04 Apr 2023, 05:58

ER

Out of 5.5 billion bacteria grown for an experiment, 1

555-605 Level | Arithmetic

555-605 Level | Arithmetic hide tags

Bunuel

16 Jun 2018, 00:20

6

12

8,682

by: bumpbot

04 Apr 2023, 07:18

ER

If the area of an equilateral triangle is x square

555-605 Level | Geometry

555-605 Level | Geometry hide tags

1, 2

m990540

29 Dec 2010, 18:25

15

23

14,016

by: Jr2000wharton

04 Apr 2023, 07:49

ER

16 ounces of birdseed mix contains 10% sesame seed by

555-605 Level | Mixture Problems

555-605 Level | Mixture Problems hide tags

Bunuel

05 Jun 2018, 22:06

10

7

8,780

by: bumpbot

04 Apr 2023, 09:09

ER

In what ratio should a 20% methyl alcohol solution be

505-555 Level | Mixture Problems

505-555 Level | Mixture Problems hide tags

Bunuel

15 Mar 2016, 12:34

26

10

27,864

by: bumpbot

04 Apr 2023, 09:54

ER

Seven boxes numbered 1 to 7 are arranged in a row.Each

705-805 Level | Combinations

705-805 Level | Combinations hide tags

Yogananda

17 May 2020, 00:44

20

7

6,200

by: bumpbot

04 Apr 2023, 10:02

ER

If (2 - sqrt(5))x = -1, then x =

505-555 Level | Algebra, Roots

505-555 Level | Algebra, Roots hide tags

vrajesh

25 Nov 2010, 16:17

22

7

10,611

by: BrushMyQuant

04 Apr 2023, 10:26

ER

The price of a dress was first discounted by a certain

505-555 Level | Percent and Interest Problems

505-555 Level | Percent and Interest Problems hide tags

Bunuel

13 Jun 2017, 05:55

60

8

13,529

by: bumpbot

04 Apr 2023, 10:37

ER

If <d> denotes the area of a circle with

555-605 Level | Functions and Custom Characters, Geometry

555-605 Level | Functions and Custom Characters, Geometry hide tags

Bunuel

03 Oct 2019, 20:37

8

2

6,841

by: bumpbot

04 Apr 2023, 10:39

ER

Two pumps, working alone, can fill an empty pool in 10

555-605 Level | Work/Rate Problems

555-605 Level | Work/Rate Problems hide tags

Bunuel

15 Apr 2021, 07:45

22

5

5,098

by: bumpbot

04 Apr 2023, 11:36

ER

If when a certain integer x is divided by 5, the

555-605 Level | Remainders

555-605 Level | Remainders hide tags

carollu

04 May 2011, 10:38

10

6

4,459

by: bumpbot

04 Apr 2023, 11:46

ER

A pool which was 2/3 full to begin with, was filled at

555-605 Level | Fractions/Ratios/Decimals, Work/Rate Problems

555-605 Level | Fractions/Ratios/Decimals, Work/Rate Problems hide tags

macjas

02 Jun 2012, 23:51

43

12

8,497

by: bumpbot

04 Apr 2023, 12:23

ER

How many seconds will it take for a bus that is

505-555 Level | Distance/Rate Problems

505-555 Level | Distance/Rate Problems hide tags

Bunuel

15 Sep 2020, 07:45

10

5

4,054

by: bumpbot

04 Apr 2023, 12:58

ER

In 2004, the cost of 1 year-long print subscription to

Sub 505 Level | Word Problems

Sub 505 Level | Word Problems hide tags

parkhydel

27 Apr 2020, 15:40

6

7,634

by: bumpbot

04 Apr 2023, 14:07

ER

In the equation ax^2 + bx + c = 0 a, b, and c are

555-605 Level | Algebra

555-605 Level | Algebra hide tags

alex1233

05 Mar 2013, 11:32

18

5

10,527

by: bumpbot

04 Apr 2023, 19:40

ER

What is the value of m in the equation below?

505-555 Level | Algebra +2 tags

505-555 Level | Algebra, Exponents/Powers, Fractions/Ratios/Decimals hide tags

zxcvbnmas

12 Feb 2016, 18:57

41

8

18,784

by: bumpbot

04 Apr 2023, 22:36

If l1 || l2 in the figure above, what is the value of

555-605 Level | Geometry

555-605 Level | Geometry hide tags

HKD1710

19 Nov 2018, 09:24

48

5

8,483

by: yannichc

05 Apr 2023, 01:54

ER

30% of all fishermen in Piscataquis County are also

555-605 Level | Overlapping Sets, Percent and Interest Problems

555-605 Level | Overlapping Sets, Percent and Interest Problems hide tags

Bunuel

17 Jul 2015, 01:31

38

11

5,861

by: bumpbot

05 Apr 2023, 02:35

ER

How many digits are there in the product 2^23*5^24*7^3?

555-605 Level | Exponents/Powers

555-605 Level | Exponents/Powers hide tags

Bunuel

03 Feb 2015, 09:53

63

12

14,572

by: HarishKumar

05 Apr 2023, 03:55

ER

A certain company expects quarterly earnings of $0.80

505-555 Level | Word Problems

505-555 Level | Word Problems hide tags

puma

24 May 2008, 12:42

50

13

20,119

by: bumpbot

05 Apr 2023, 05:18

ER

A bag contains 5 red balls and some blue balls. If the

Sub 505 Level | Probability

Sub 505 Level | Probability hide tags

Bunuel

05 Apr 2023, 01:30

3

1,292

by: ScottTargetTestPrep

05 Apr 2023, 06:30

ER

A pack contains 4 blue, 2 red and 3 black pens. If a

655-705 Level | Probability

655-705 Level | Probability hide tags

Bunuel

05 Apr 2023, 01:30

7

2

1,391

by: ScottTargetTestPrep

05 Apr 2023, 07:00

ER

Jessica and Darren are painting a fence. Working alone

505-555 Level | Work/Rate Problems

505-555 Level | Work/Rate Problems hide tags

Bunuel

24 Sep 2018, 22:04

25

7

4,799

by: bumpbot

05 Apr 2023, 07:24

Problem Solving (PS)