shivanigs wrote:

Hi,

Request help with the following question.Thanks..

Is PQ > 1?

1.P^q = 1

2.q = -1

Statement 1: p^q =1

=> p could be any number and q=0

or q could be any number and p=1

or q coule be any even number and p=-1

Clearly not sufficient as PQ could be 0, >1 or <1.

Statement 2: q=-1

Clearly insufficient, no information on p.

Combining statement 1 and 2: if q=-1 and p^q =1

this gives p = 1, q=-1. Sufficient. (We can answer whether pq>1 or not)

Hence Ans C it is.

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