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Gmat Prep - Total fine for a book

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Re: Gmat Prep - Total fine for a book

by sudhir3127 » Mon Aug 25, 2008 4:12 am
mehravikas wrote:Please explain why is the answer 0.7
its 0.7

on first day its 0.1
second day its 2(0.1) = 0.2.............. ( its less than 0.3)
third day its 2( 0.2) = 0.4 ...............( less then 0.5 ( .2+.3)

thus on 4th day its 0.1+0.2+ 0.4 = 0.7

hope that helps..
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