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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

257,309

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

1,181,247

by: bb

22 Feb 2012, 11:27

ER

If y is an even integer greater than 4, and x = y^2 -

655-705 Level | Algebra +2 tags

655-705 Level | Algebra, Divisibility/Multiples/Factors, Must or Could be True Questions hide tags

Bunuel

20 Jan 2020, 02:58

10

5

4,106

by: bumpbot

09 Mar 2024, 00:30

ER

If (x^2 + 9)^(1/2) + (x^2 - 3)^(1/2) = 6, what is the

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

10 Nov 2023, 04:48

8

2

955

by: ZIX

08 Mar 2024, 23:51

ER

If x is an integer and x2(x−1)+2x+1=2x1+x+12(1−x)

655-705 Level | Algebra

655-705 Level | Algebra hide tags

delta23

05 Aug 2018, 00:34

9

3,051

by: ZIX

08 Mar 2024, 23:07

ER

The sum of all the digits of the integers from 18 to

655-705 Level | Arithmetic

655-705 Level | Arithmetic hide tags

shrive555

28 Oct 2010, 17:05

94

17

27,597

by: Nalapatricia

08 Mar 2024, 15:21

ER

A, B, C, D, E, F, G, and H are all integers, listed in

655-705 Level | Algebra +2 tags

655-705 Level | Algebra, Exponents, Sequences hide tags

Bunuel

04 Nov 2014, 09:37

165

16

19,387

by: bumpbot

08 Mar 2024, 01:14

ER

If (2n + 1) + (2n + 3) + (2n + 5) + ... + (2n + 47) =

655-705 Level | Algebra, Sequences

655-705 Level | Algebra, Sequences hide tags

Bunuel

13 Apr 2020, 07:21

39

10

7,102

by: bumpbot

07 Mar 2024, 09:51

ER

(3.999999/2.001) - (3.999996/2.002) = ???

655-705 Level | Arithmetic

655-705 Level | Arithmetic hide tags

Bunuel

01 Nov 2021, 04:45

23

7

2,517

by: Regor60

06 Mar 2024, 12:32

ER

Which of the following must be true of the numbers

655-705 Level | Arithmetic

655-705 Level | Arithmetic hide tags

ruis

02 Mar 2024, 14:27

11

5

1,577

by: ruis

06 Mar 2024, 04:00

ER

If x 1, then (x^n - 1)/(x - 1) = x^{n - 1} + x^{n -

655-705 Level | Algebra +2 tags

655-705 Level | Algebra, Exponents, Number Properties hide tags

catzetajones

27 Feb 2024, 09:46

16

3

2,004

by: Bunuel

04 Mar 2024, 00:02

ER

If a and b are constants and the equation x^2 + ax +

655-705 Level | Algebra

655-705 Level | Algebra hide tags

gmatophobia

03 Mar 2024, 12:18

16

2

1,676

by: sachi-in

03 Mar 2024, 22:06

ER

If function f(x) = x² + 2bx + 4, then for any b, f(x)

655-705 Level | Algebra, Functions and Custom Characters

655-705 Level | Algebra, Functions and Custom Characters hide tags

Nipungautam23

01 Nov 2014, 17:36

61

6

8,181

by: bumpbot

03 Mar 2024, 13:55

ER

A merchant paid $300 for a shipment of x identical

655-705 Level | Arithmetic, Word Problems

655-705 Level | Arithmetic, Word Problems hide tags

boomtangboy

21 Apr 2012, 21:18

238

16

39,574

by: MBAHOUSE

03 Mar 2024, 11:37

ER

The number of ordered pairs of positive integers (a,

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

28 Feb 2020, 02:03

24

11

23,225

by: NihaarB

02 Mar 2024, 09:54

ER

For how many ordered pairs of positive integers (x,y)

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

21 Mar 2019, 04:04

15

13

5,349

by: ZIX

02 Mar 2024, 07:29

ER

Let a,b,c, and d be nonzero real numbers. If the

655-705 Level | Algebra

655-705 Level | Algebra hide tags

1, 2

amitpaul527

26 Apr 2016, 17:39

703

26

89,576

by: bumpbot

02 Mar 2024, 02:54

ER

A book has 1000 pages numbered 1, 2, 3, …, and so

655-705 Level | Arithmetic

655-705 Level | Arithmetic hide tags

MathRevolution

07 May 2019, 01:03

36

7

6,417

by: bumpbot

29 Feb 2024, 00:26

ER

What is the value of 23·5 + 25·7 + 27·9 + 29·11 +

655-705 Level | Algebra

655-705 Level | Algebra hide tags

MathRevolution

04 Aug 2020, 02:31

40

12

2,800

by: bumpbot

28 Feb 2024, 22:39

ER

Three models (A, B, and C) of cars are distributed

655-705 Level | Arithmetic +2 tags

655-705 Level | Arithmetic, Min-Max Problems, Word Problems hide tags

amithy

08 Dec 2015, 05:41

17

9

3,915

by: bumpbot

28 Feb 2024, 20:56

ER

If x > y > 0, and x^2 + y^2 = 6xy, what is

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

27 Feb 2024, 09:48

7

3

902

by: Bunuel

28 Feb 2024, 11:28

ER

If x - 5 = x + 5, which of followings is true?

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

22 Jun 2023, 03:00

14

3

1,443

by: kopp74

27 Feb 2024, 16:50

ER

What is the value of 27^2+28^2+29^2+30^2+31^2+32^2+33^2

655-705 Level | Algebra, Arithmetic

655-705 Level | Algebra, Arithmetic hide tags

Bunuel

20 May 2015, 04:31

105

14

16,797

by: bumpbot

25 Feb 2024, 09:32

ER

Shawna and Jia worked together to paint a house.

655-705 Level | Algebra +2 tags

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

dabaobao

18 Aug 2018, 03:45

98

17

8,667

by: shoshonte

22 Feb 2024, 14:41

ER

(x + y)^2 = 4 x^2 - y^2 = 0 How many distinct solution

655-705 Level | Algebra

655-705 Level | Algebra hide tags

Bunuel

22 Feb 2024, 02:30

9

4

872

by: Shubhradeep

22 Feb 2024, 13:11

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

37,615

by: quetzalferry

20 Feb 2024, 18:15

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

14,124

by: bumpbot

20 Feb 2024, 05:09

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

11,964

by: jayouh

19 Feb 2024, 05:56

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

1,681

by: bumpbot

17 Feb 2024, 10:22

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

3,991

by: bumpbot

17 Feb 2024, 08:28

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

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

6,243

by: bumpbot

14 Feb 2024, 10:40

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

1,661

by: bumpbot

13 Feb 2024, 11:53

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

1,367

by: Bunuel

13 Feb 2024, 00:10

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

2,061

by: Abhishek009

12 Feb 2024, 07:27

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

1,290

by: Bunuel

12 Feb 2024, 02:11

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

6,633

by: bumpbot

10 Feb 2024, 15:12

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

2,632

by: bumpbot

10 Feb 2024, 12:09

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

5,961

by: Bunuel

08 Feb 2024, 10:26

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

4,008

by: Regor60

07 Feb 2024, 15:51

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

2,424

by: bumpbot

06 Feb 2024, 10:06

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

2,504

by: bumpbot

06 Feb 2024, 09:52

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

12,652

by: Oppenheimer1945

06 Feb 2024, 08:54

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

2,371

by: bumpbot

05 Feb 2024, 09:22

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

2,472

by: bumpbot

05 Feb 2024, 08:34

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

13,575

by: bumpbot

05 Feb 2024, 06:37

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

4,819

by: bumpbot

05 Feb 2024, 06:00

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

30,889

by: tdrowberry

02 Feb 2024, 15:46

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

11,360

by: bumpbot

01 Feb 2024, 04:23

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

9,028

by: bumpbot

01 Feb 2024, 04:21

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

6,359

by: bumpbot

31 Jan 2024, 14:25

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

25,016

by: krishna_sunder_

25 Jan 2024, 06:24

Problem Solving (PS)