What is the value of the integer n?
i) n(n+2)=15
ii) (n+2)^n=125
The given answer is C (both together are sufficient).
According to my understanding:
From (i), n may be 3 or -5.
From (ii), n is 3.
So I think (ii) is sufficient while (i) not.
Is there any other possibilities for n from (ii)?
Thanks a lot! | 
