number properties

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by rijul007 » Sun Jan 15, 2012 4:54 am
sud21 wrote:If m and n are none negative integers, mn=?
1). 4^m=2^n
2). 3^m=2^n
1). 4^m=2^n
2^2m = 2^n
2m = n

Insuff

2). 3^m=2^n
m = n = 0
mn = 0

Suff

Option B