Please help

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Source: — Problem Solving |

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Re: Please help

by sudhir3127 » Sat Aug 30, 2008 10:42 pm
gmat_junior wrote:If the operation o is defined for all positive integers x and w by x o w = 2^x/2^w, then (3o1)o 3 =

a) 2
b) 4
c) 8
d) 16
e) 32
we need to solve the one in parenthesis first

3o1 = 2^3/2^1= 8/2 = 4

now (3o1)o 3 can be re written as 4o3

2^4/2^3 = 2

hope that helps..

PS: next time when u post ,,make sure u give correct subject line,.. it will be easier for us to help u ,..

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by gmat_junior » Sun Aug 31, 2008 7:23 am
Thanks Shudir.I got the idea now :lol: