Given : p < q and p< r
To find: Is pqr < p
Stmt I
pq<0
Since p<q p is negative and q is positive
Since we dont know anything about sign of r we cant say if pqr < p
If r is negative then NO
If r is positive the YES
INSUFF
Stmt II
same explanation as abobe but in this case we dont know sign of q
INSUFF
Together:
p<q and p<r
p is neagtive q and r are both positive
So is pqr < p
(negative)(positive)(positive) < neagtive YES if p, q and r are integer
Let say p = -2 q=1/2 r=1/2 then NO
pqr > p
INSUFF
Good one...(key: we dont know if p.q.r are integers or fractions)
Choose E
