Bunuel wrote:

If N is an integer, is 36/N an integer?

(1) N is a multiple of 9.

(2) 9 < N < 27

1. If N is a multiple of 9, 36/N can or cannot be an integer.

If N = 9, 18, or 36 - 36/N is an integer. Else it is not an integer

(Insufficient)2. In this range 9 < N < 27, is N = 10, 36/N is not an integer.

But 36/18 is an integer. Hence, this statement alone isn't enough

(Insufficient)On combining the information from both the statements,

N can take only one value

18 and 36/N is an integer

(Sufficient - Option C)
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