Find all School-related info fast with the new School-Specific MBA Forum

It is currently 28 Jul 2016, 06:21
GMAT Club 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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

What is the value of (x-y)^4?

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Intern
Intern
avatar
Joined: 25 May 2008
Posts: 46
Followers: 0

Kudos [?]: 23 [0], given: 0

What is the value of (x-y)^4? [#permalink]

Show Tags

New post 24 Dec 2008, 15:03
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Set 1 Question 10

What is the value of (x-y)^4?

1. The product of x and y is 7.
2. x and y are integers.

The answer should be c.. right?? Simply because the only integers that could have the sum of 7 are 1 and 7


Just wanted to confirm the logic.
Manager
Manager
avatar
Joined: 11 Apr 2008
Posts: 202
Followers: 2

Kudos [?]: 17 [0], given: 1

Re: DS: Question [#permalink]

Show Tags

New post 24 Dec 2008, 22:04
The product of x and y are 7.
In this case x and y can be either 1 and 7 or -1 and -7.
Hence in both case scenario the value of (x-y)^4 will be the same.
So the answer should be C.
What is the OA?
_________________

Nobody dies a virgin, life screws us all.

SVP
SVP
avatar
Joined: 04 May 2006
Posts: 1926
Schools: CBS, Kellogg
Followers: 21

Kudos [?]: 815 [0], given: 1

Premium Member
Re: DS: Question [#permalink]

Show Tags

New post 26 Dec 2008, 01:03
subarao wrote:
The product of x and y are 7.
In this case x and y can be either 1 and 7 or -1 and -7.
Hence in both case scenario the value of (x-y)^4 will be the same.
So the answer should be C.
What is the OA?


(1-7)^4 = (7-1)^4 = (-1-(-7))^4 = (-7-(-1))^4 =6^4

A is the best
_________________

GMAT Club Premium Membership - big benefits and savings

Intern
Intern
avatar
Joined: 26 Dec 2008
Posts: 10
Schools: Thunderbird
Followers: 0

Kudos [?]: 2 [0], given: 0

Re: DS: Question [#permalink]

Show Tags

New post 27 Dec 2008, 00:11
C. You can't assume these are integers.

(28-.25) ^ 4 = 551399.0664
Intern
Intern
avatar
Joined: 25 May 2008
Posts: 46
Followers: 0

Kudos [?]: 23 [0], given: 0

Re: DS: Question [#permalink]

Show Tags

New post 08 Jan 2009, 13:28
sorry for the delay. but the OA is C

and thanks guys... for your help
Re: DS: Question   [#permalink] 08 Jan 2009, 13:28
Display posts from previous: Sort by

What is the value of (x-y)^4?

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.