It is currently 12 Dec 2018, 10:26
My Tests

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

N is an integer such that N > 1.

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Moderator
Moderator
User avatar
Joined: 18 Apr 2015
Posts: 5150
Followers: 77

Kudos [?]: 1031 [0], given: 4640

CAT Tests
N is an integer such that N > 1. [#permalink] New post 02 Dec 2018, 05:33
Expert's post
00:00

Question Stats:

100% (00:23) correct 0% (00:00) wrong based on 4 sessions
N is an integer such that \(N > 1\).

Quantity A
Quantity B
\((N+1)^2 -1\)
\(N^2\)


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given
[Reveal] Spoiler: OA

_________________

Get the 2 FREE GREPrepclub Tests

2 KUDOS received
Director
Director
Joined: 20 Apr 2016
Posts: 758
Followers: 6

Kudos [?]: 512 [2] , given: 94

CAT Tests
Re: N is an integer such that N > 1. [#permalink] New post 04 Dec 2018, 06:01
2
This post received
KUDOS
Carcass wrote:
N is an integer such that \(N > 1\).

Quantity A
Quantity B
\((N+1)^2 -1\)
\(N^2\)


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given



Explanation::

Qty A = \((N+1)^2 -1 = N^2 + 2N + 1 - 1 = N^2 + 2N\)

Therefore
\(N^2 + 2N > N^2\)

Hence Option A
_________________

If you found this post useful, please let me know by pressing the Kudos Button

1 KUDOS received
GRE Instructor
User avatar
Joined: 10 Apr 2015
Posts: 1232
Followers: 45

Kudos [?]: 1115 [1] , given: 7

Re: N is an integer such that N > 1. [#permalink] New post 04 Dec 2018, 10:01
1
This post received
KUDOS
Expert's post
Carcass wrote:
N is an integer such that \(N > 1\).

Quantity A
Quantity B
\((N+1)^2 -1\)
\(N^2\)


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given


We can solve this question using matching operations

Given:
Quantity A: (N + 1)²
Quantity B: N²

Expand and simplify Quantity A to get:
Quantity A: N² + 2N + 1
Quantity B: N²

Subtract N² from both quantities to get:
Quantity A: 2N + 1
Quantity B: 0

Subtract 1 from both quantities to get:
Quantity A: 2N
Quantity B: -1

Since we're told that N > 1, we know that 2N must be POSITIVE.
So, we have:
Quantity A: some POSITIVE number
Quantity B: -1

Answer: A

RELATED VIDEO FROM OUR COURSE

_________________

Brent Hanneson – Creator of greenlighttestprep.com
Image
Sign up for our free GRE Question of the Day emails

Re: N is an integer such that N > 1.   [#permalink] 04 Dec 2018, 10:01
Display posts from previous: Sort by

N is an integer such that N > 1.

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

GRE Prep Club Forum Home| About| Terms and Conditions and Privacy Policy| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.