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Re: OG..

by ratindasgupta » Sat Sep 29, 2007 1:01 am
nandish wrote:If (1/5)^m (1/4)^18=1/2(10)^35..Then m ===???

1:-17
2:-18
3:-35
4:-34
5:-36.
The question is wrong. It should be (1/5)^m (1/4)^18=1/2(1/10)^35.

Anyway,
(1/10)^35 = (1/2)^35*(1/5)^35
So 1/2(1/10)^35 = (1/2)36*(1/5)^35

Since(1/2)^36 = (1/4)^18,

m = 35.

Answer is C
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