DS:are p,q,r equal?

[tejal777]

Are positive integers P, Q, and R equal?
1. P=Q
2. Q squared = R squared.
ANS:c

My approach.Pls point out where am i going wrong.
1.Insuff.We have no info abt R
2.Insuff. clearly.
when we combine,taking egs.
let P=Q=R=2.Satisfies both the equation. P=Q=2 and Q sq.=R sq.=4

let P=Q=2 and R=-2.P=Q=2 satisfies 1 and Q sq=R sq.=4

thus answer should be E.

[StaceyKoprince]

Please read (and follow!) the forum guidelines before posting.

Please cite the source (the author) of your question. If you don't, teachers can't answer and the question will get deleted.

Thanks!

[tejal777]

The source is a local compilation of sums for the CAT test.This sounds like a GMAT level problem so was trying my hand.Pls lemme kno the solution.Thnks!

[JonathanSchneider]

Be careful. We are told that they are all positive integers. I ALWAYS write down this information for DS, to keep it fresh.

I would start this problem by writing down: "p, q, r = pos ints."

You might begin to do the same.