n,p @ integers, is p>0 ?GHong14 wrote:
(1) n+1>0, n>-1 `` n cab -ve OR +ve, no information about p is available, Not Sufficient
(2) np>0, only if n,p both +ve or n,p both -ve, Not Sufficient
Combined st(1&2): n can be -ve OR +ve, still Not Sufficient
pick E if only n is not integer, otherwise pick C
answer C
