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

973

22

257,253

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

2,849

0

1,181,076

by: bb

22 Feb 2012, 11:27

ER

If a and b are integers and (3√a*√b)^6 = 500, then

655-705 Level | Algebra, Roots

655-705 Level | Algebra, Roots hide tags

Bunuel

21 Nov 2017, 01:59

64

11

13,568

by: Oppenheimer1945

09 Jan 2024, 12:21

ER

A firm decides to inspect 48 of its distribution

655-705 Level | Algebra

655-705 Level | Algebra hide tags

DHAR

30 Jul 2017, 08:36

23

7

5,138

by: bumpbot

09 Jan 2024, 12:27

ER

Which of the following is equivalent to (265)(247)?

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

10 Aug 2018, 03:41

42

17

7,137

by: Malar95

10 Jan 2024, 04:43

ER

Bunuel's Algebra PS Diagnostic Test

505-555 Level | Absolute Values +11 tags

505-555 Level, 555-605 Level, 655-705 Level | Absolute Values, Algebra, Arithmetic, Exponents, Fractions/Ratios/Decimals, Functions and Custom Characters, Inequalities, Min-Max Problems, Must or Could be True Questions, Percent and Interest Problems hide tags

1 ... 4, 5, 6

Bunuel

02 Oct 2022, 04:59

328

107

33,694

by: Bunuel

11 Jan 2024, 04:56

ER

A certain theater has 100 balcony seats. For every $2

655-705 Level | Arithmetic, Word Problems

655-705 Level | Arithmetic, Word Problems hide tags

boomtangboy

28 Apr 2012, 21:39

171

9

27,707

by: bumpbot

11 Jan 2024, 07:42

ER

If 4y^4 − 41y^2 + 100 = 0, then what is the sum of

655-705 Level | Algebra

655-705 Level | Algebra hide tags

alex1233

12 May 2012, 07:23

38

11

11,294

by: Abhishek009

14 Jan 2024, 11:39

ER

If x -2 = x^(1/2) + 2x^(1/2), what is the value of x?

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

14 Mar 2023, 10:45

14

2

1,434

by: mx39

15 Jan 2024, 21:09

ER

In a certain theatre, there are 300 seats. When the

655-705 Level | Algebra

655-705 Level | Algebra hide tags

souvonik2k

09 Jan 2018, 11:34

25

6

4,535

by: bumpbot

16 Jan 2024, 06:11

ER

If a – b = 16 and a^(1/2) + b^(1/2) = 8, what is the

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

03 May 2018, 01:54

19

3

3,220

by: JoeKan1234

16 Jan 2024, 07:59

ER

If 359/1650 = 0.2175, what is the 100th digit to the

655-705 Level | Arithmetic, Number Properties

655-705 Level | Arithmetic, Number Properties hide tags

Bunuel

22 Oct 2019, 03:22

25

5

3,869

by: bumpbot

16 Jan 2024, 23:03

ER

If

655-705 Level | Algebra, Roots

655-705 Level | Algebra, Roots hide tags

BrentGMATPrepNow

11 Aug 2019, 11:15

26

4

4,406

by: bumpbot

17 Jan 2024, 02:16

ER

Which of the following is the closest value of x such

655-705 Level | Algebra

655-705 Level | Algebra hide tags

MathRevolution

07 Jun 2017, 01:23

61

6

6,156

by: bumpbot

17 Jan 2024, 22:37

ER

Which of the following is NOT a root of the equation

655-705 Level | Algebra

655-705 Level | Algebra hide tags

BrentGMATPrepNow

25 Jul 2018, 07:13

30

7

4,862

by: bumpbot

18 Jan 2024, 04:03

ER

If the equation x^2−6x=k has at least one solution,

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

25 May 2021, 06:15

12

5

2,363

by: bumpbot

18 Jan 2024, 04:52

ER

If both roots of the equation x^2 - 39x +a = 0 are

655-705 Level | Algebra, Number Properties

655-705 Level | Algebra, Number Properties hide tags

Bunuel

29 Dec 2023, 02:30

9

7

1,380

by: Regor60

18 Jan 2024, 08:16

ER

Two pipes A and B can fill a tank in 24 minutes and 32

655-705 Level | Arithmetic, Work Problems

655-705 Level | Arithmetic, Work Problems hide tags

TheNightKing

17 Apr 2020, 19:39

27

5

4,008

by: bumpbot

18 Jan 2024, 09:21

ER

If Charlie decides to cut the salary per employee at

655-705 Level | Arithmetic, Word Problems

655-705 Level | Arithmetic, Word Problems hide tags

guerrero25

09 Jul 2013, 01:39

35

8

5,421

by: bumpbot

19 Jan 2024, 06:43

ER

There are 108 positive integers. 50% of the integers

655-705 Level | Arithmetic

655-705 Level | Arithmetic hide tags

Kaczet

05 Nov 2018, 13:22

14

12

2,485

by: bumpbot

20 Jan 2024, 02:13

ER

If (3x + 2y - 22)^2 + (4x - 5y + 9)^2 = 0 and 5x - 4y

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

29 May 2020, 10:07

39

6

7,157

by: bumpbot

20 Jan 2024, 04:15

ER

On a map, 1.5 inches represent 24 miles. How many

655-705 Level | Arithmetic

655-705 Level | Arithmetic hide tags

Bunuel

29 Jun 2016, 07:55

8

4

4,074

by: bumpbot

22 Jan 2024, 03:26

ER

a = 2^4·5^4 b = 3^4·11^2 c=2^2·5^6. Which of the

655-705 Level | Arithmetic

655-705 Level | Arithmetic hide tags

anandgoyal

17 Jul 2016, 20:03

13

4

2,979

by: bumpbot

22 Jan 2024, 03:46

ER

At an amusement park, tom bought a number of red

655-705 Level | Arithmetic, Word Problems

655-705 Level | Arithmetic, Word Problems hide tags

calreg11

30 Jan 2012, 21:06

197

10

18,423

by: krishna_sunder_

24 Jan 2024, 01:43

ER

In the infinite sequence A, An = X^(n-1) + X^n +

655-705 Level | Algebra, Sequences

655-705 Level | Algebra, Sequences hide tags

ksharma12

31 Mar 2010, 11:47

371

19

54,847

by: krishna_sunder_

25 Jan 2024, 00:34

ER

The temperature inside a certain industrial machine at

655-705 Level | Algebra

655-705 Level | Algebra hide tags

1, 2

oss198

17 Aug 2014, 09:31

146

21

25,012

by: krishna_sunder_

25 Jan 2024, 06:24

ER

What is the largest four digit number when it is

655-705 Level | Algebra, Remainders

655-705 Level | Algebra, Remainders hide tags

Supermaverick

10 Jul 2017, 14:17

54

9

6,354

by: bumpbot

31 Jan 2024, 14:25

ER

The digital sum of a number is the sum of its digits.

655-705 Level | Arithmetic, Divisibility/Multiples/Factors

655-705 Level | Arithmetic, Divisibility/Multiples/Factors hide tags

mmelendez

11 Nov 2015, 08:55

26

12

9,025

by: bumpbot

01 Feb 2024, 04:21

ER

A survey asked 1,150 people to choose their favorite

655-705 Level | Arithmetic, Percent and Interest Problems

655-705 Level | Arithmetic, Percent and Interest Problems hide tags

Bunuel

23 May 2019, 03:53

7

4

11,348

by: bumpbot

01 Feb 2024, 04:23

ER

The sum of the first k positive integers is equal to

655-705 Level | Algebra, Number Properties

655-705 Level | Algebra, Number Properties hide tags

MHIKER

19 Jan 2012, 11:16

154

7

30,870

by: tdrowberry

02 Feb 2024, 15:46

ER

How many solutions does the equation 0.25x4 – 0.75x2

655-705 Level | Algebra, Exponents

655-705 Level | Algebra, Exponents hide tags

rheam25

15 Mar 2020, 10:47

26

11

4,808

by: bumpbot

05 Feb 2024, 06:00

ER

If (3^4)(5^6)(7^3) = (35^n)(x), where x and n are both

655-705 Level | Algebra, Exponents

655-705 Level | Algebra, Exponents hide tags

roygush

25 Feb 2013, 14:13

83

19

13,570

by: bumpbot

05 Feb 2024, 06:37

ER

Which of the following are roots of an equation

655-705 Level | Algebra

655-705 Level | Algebra hide tags

MathRevolution

08 Nov 2018, 01:45

11

4

2,465

by: bumpbot

05 Feb 2024, 08:34

ER

If A = 2xyy2+1 and y ≥ 1, what is x + A + x - Ax + A

655-705 Level | Algebra

655-705 Level | Algebra hide tags

MathRevolution

21 May 2020, 19:08

12

5

2,365

by: bumpbot

05 Feb 2024, 09:22

ER

If 6x=8y=14z, then what is a possible sum of positive

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

19 Jan 2015, 05:22

85

7

12,646

by: Oppenheimer1945

06 Feb 2024, 08:54

ER

If x and y are integers such that (xy)^2 + x^2 2xy 2x

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

01 Nov 2022, 02:05

22

6

2,497

by: bumpbot

06 Feb 2024, 09:52

ER

If x^2 - 4x + 1 = 0, what is x^2 + 1/x^2?

655-705 Level | Algebra

655-705 Level | Algebra hide tags

MathRevolution

12 Mar 2020, 01:35

22

3

2,419

by: bumpbot

06 Feb 2024, 10:06

ER

The value of 1/x - 4/x + 4 is least when x =

655-705 Level | Algebra, Min-Max Problems

655-705 Level | Algebra, Min-Max Problems hide tags

mangamma

19 Apr 2019, 08:54

25

5

3,996

by: Regor60

07 Feb 2024, 15:51

ER

In the multiplication problem above, A, B, and C

655-705 Level | Arithmetic

655-705 Level | Arithmetic hide tags

Impenetrable

01 Jan 2012, 22:45

24

10

5,960

by: Bunuel

08 Feb 2024, 10:26

ER

For what values of K the quadratic equation (K + 1)x^2

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

01 Feb 2021, 07:15

17

7

2,626

by: bumpbot

10 Feb 2024, 12:09

ER

(1.00001)(0.99999) - (1.00002)(0.99998) =

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

04 May 2021, 05:45

22

8

6,626

by: bumpbot

10 Feb 2024, 15:12

ER

If S = 2001/(2*3) + 2001/(3*4) + 2001/(4*5) + ... +

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

04 Sep 2007, 12:35

13

3

1,283

by: Bunuel

12 Feb 2024, 02:11

ER

The sum and product of k positive integers are 12 and

655-705 Level | Algebra, Exponents

655-705 Level | Algebra, Exponents hide tags

guddo

28 Jan 2024, 08:38

14

6

2,056

by: Abhishek009

12 Feb 2024, 07:27

ER

40,105*26*10,112 is the approximation of which of the

655-705 Level | Arithmetic

655-705 Level | Arithmetic hide tags

Bunuel

31 May 2023, 10:30

6

3

1,366

by: Bunuel

13 Feb 2024, 00:10

ER

If x = 1/2(a^(1/2) + 1/a^(1/2), then ((x^2)^(1/2) -

655-705 Level | Algebra

655-705 Level | Algebra hide tags

karan12345

25 May 2020, 19:53

7

3

1,658

by: bumpbot

13 Feb 2024, 11:53

ER

There are n people competing in a chess tournament.

655-705 Level | Algebra +2 tags

655-705 Level | Algebra, Combinations, Word Problems hide tags

BrentGMATPrepNow

30 Apr 2017, 09:20

45

8

6,240

by: bumpbot

14 Feb 2024, 10:40

ER

If Δ and ∅ represent single digits in the correctly

655-705 Level | Arithmetic

655-705 Level | Arithmetic hide tags

Bunuel

24 Jan 2022, 05:15

3

2

1,324

by: bumpbot

17 Feb 2024, 04:39

ER

In a recent tender, X people participated. 35% of the

655-705 Level | Algebra

655-705 Level | Algebra hide tags

gonebada93

30 Apr 2016, 11:52

17

3

3,986

by: bumpbot

17 Feb 2024, 08:28

ER

How many positive integral solutions of x and y are

655-705 Level | Algebra

655-705 Level | Algebra hide tags

gmatophobia

30 Jan 2022, 02:00

8

2

1,678

by: bumpbot

17 Feb 2024, 10:22

ER

If a1 = 1/(2*5), a2 = 1/(5*8), a3 = 1/(8*11), ...,

655-705 Level | Arithmetic, Sequences

655-705 Level | Arithmetic, Sequences hide tags

Bunuel

03 Apr 2020, 05:39

48

8

11,960

by: jayouh

19 Feb 2024, 05:56

ER

A Container contains ‘X’ Liters of Milk. A thief

655-705 Level | Algebra +3 tags

655-705 Level | Algebra, Arithmetic, Fractions/Ratios/Decimals, Mixture Problems hide tags

jackfr2

18 Apr 2019, 02:45

56

8

14,120

by: bumpbot

20 Feb 2024, 05:09

ER

The cost per unit of electricity during a 4 year

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Safal

07 Apr 2014, 22:18

134

15

37,599

by: quetzalferry

20 Feb 2024, 18:15

Problem Solving (PS)