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

Redeem

powers

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 142
Joined: Thu Apr 26, 2012 3:24 am
Location: India
Thanked: 28 times

by mathbyvemuri » Thu May 10, 2012 3:30 am
Answer "C"

4^(x-1)2 = 4^(2x-2)
= (4^2x)/(4^2)
= sqrt(4^4x)/16 = sqrt(1600)/16 = 40/16 = 5/2
Top
Post new topic Post Reply
• Page 1 of 1