even divior of n

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by mkdureja » Thu May 23, 2013 11:35 pm
n=4p.
n=2*2*p
As p is a prime above 2 , it doesn't have any even divisors.
Even divisors of n:
2, 4, 2p, 4p
Ans C

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by Atekihcan » Fri May 24, 2013 8:53 am
Take p = 3
So, n = 4p = 12

Number of even divisors of 12 is 4 (2, 4, 6, and 12)

Answer : C