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Greatest value

Expert replies
Source: — Problem Solving |

by Anurag@Gurome » Wed May 04, 2011 11:07 pm
Deepthi Subbu wrote:If w4 + r4 = 200 then the greatest possible value of r is between

(A) 1 and 3
(B) 3 and 5
(C) 5 and 7
(D) 7 and 9
(E) 9 an 11

OA a little later
r can be maximum if w = 0
Now 3^4 = 81 and 4^4 = 256, which implies the greatest possible value of r is between 3 and 4.

The correct answer is B.
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

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