My way of solving inequalities DS is as follow:
(as for your question I will try to reach a formula i can work with in according to the given statements)
One of the biggest problems in inequalities DS is the fact that multiplying or dividing an inequality by a negative number reverses the order of the inequality
, so people tend to make the following (and quite common) mistake.
1/p > r/(r^2+2) (multiple both sides by p*[r^2+2]
r^2+2 > rp
implementing statement 1 as p=r
and you get
r^2+2 > r^2
which seems right and choose (A) - Wrong !!!!
we have to make sure first that p*[r^2+2] is greater then 0 !
and the only way to know that is when r>0 and p=r
so the answer must be (C)