Saturday, June 13, 2009

Problem 42 - GMAT Powers & Roots


2 comments:

  1. approximate ....i know sqrt 2,3,...upto 10
    thus sqrt6 = 2.45
    hence 2*2.45 = 4+.9 = 4.9
    4.9+5 = 9.9 ~ 10...5/10 = 1/2 = 0.5

    5sqrt24 = 10sqrt6 = 24.5
    adding both = 24.5+.5 = 25 ~ 5

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