BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

A + B + C

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Legendary Member
Posts: 1022
Joined: Mon Jul 20, 2009 11:49 pm
Location: Gandhinagar
Thanked: 41 times
Followed by:2 members

A + B + C

by shashank.ism » Mon Feb 08, 2010 9:15 am
If a+b+c = 0.The value of (a^4+b^4+c^4)/(b^2c^2+c^2a^2+a^2b^2) is

a) 2
b) 3
c) 6
d) 8
e) 16
Last edited by shashank.ism on Mon Feb 08, 2010 10:06 am, edited 2 times in total.
My Websites:
www.mba.webmaggu.com - India's social Network for MBA Aspirants

www.deal.webmaggu.com -India's online discount, coupon, free stuff informer.

www.dictionary.webmaggu.com - A compact free online dictionary with images.

Nothing is Impossible, even Impossible says I'm possible.
Top
Source: — Problem Solving |
User avatar
Legendary Member
Posts: 758
Joined: Sat Aug 29, 2009 9:32 pm
Location: Bangalore,India
Thanked: 67 times
Followed by:2 members

by sumanr84 » Mon Feb 08, 2010 9:35 am
IMO : A

I don't know the exact approach but I wud rather take substitution method,

Given, a+b+c = 0, I wud subst a = -1, b=0 and c=1

Solving we get 2

also, if we subst a=-2, b =1 and c=1

we get 2

hence, ans is option A
Top
User avatar
Master | Next Rank: 500 Posts
Posts: 241
Joined: Wed Jan 27, 2010 10:10 pm
Location: Chennai
Thanked: 23 times
Followed by:2 members
GMAT Score:690

by sars72 » Mon Feb 08, 2010 9:40 am
shashank.ism wrote:If a+b+c = 0.The value of a4+b4+c4/b2c2+c2a2+a2b2 is

a) 2
b) 3
c) 6
d) 8
e) 16
is it a4+b4+c4/b2c2+c2a2+a2b2 OR (a4+b4+c4)/(b2c2+c2a2+a2b2) ??
Top
Post new topic Post Reply
• Page 1 of 1