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Source: — Problem Solving |

by shankar.ashwin » Sat Sep 17, 2011 12:29 pm
There are many ways to approach this problem, but if you familiar with numbers,

you probably know, 5^4 = 25^2 = 625 and

4^4 = 16^2 = 256.

So its clearly between 4 and 5
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by GRV99 » Sun Sep 18, 2011 12:19 am
thanx rising star....i didn't think it that way..sumtimes core logic is better than core math.
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