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# Are positive integers P , Q , and R equal? 1) P = Q 2) Q^2 =

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Manager
Joined: 02 Aug 2007
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Are positive integers P , Q , and R equal? 1) P = Q 2) Q^2 = [#permalink]  14 Nov 2007, 14:47
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Are positive integers P , Q , and R equal?

1) P = Q
2) Q^2 = R^2
Manager
Joined: 08 Nov 2007
Posts: 99
Followers: 1

Kudos [?]: 1 [0], given: 0

Re: DS - Challenge [#permalink]  14 Nov 2007, 14:54
yuefei wrote:
Are positive integers P , Q , and R equal?

1) P = Q
2) Q^2 = R^2

E

P = Q doesn't tell us about R,

Q^2 = R^2 doesnt mean that Q = R, Q = -R works too

Together as much as we know is that P = Q = R/-R
Manager
Joined: 02 Aug 2007
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[#permalink]  14 Nov 2007, 15:00
OA is C.

This tests how carefully you read the question. The question tell us they are all "positive integers" P, Q, and R.
Manager
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[#permalink]  14 Nov 2007, 15:05
yuefei wrote:
OA is C.

This tests how carefully you read the question. The question tell us they are all "positive integers" P, Q, and R.

hah ... yep ... got me! - it's a habit I need to foster.
Intern
Joined: 18 Jun 2007
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[#permalink]  14 Nov 2007, 15:17
I got E at first too.

I alway make this mistake.

This is a GMAT trap for sure as we learn to pay special attention to an integer square that could have two solutions, we jump right into it and forgot the question.
Intern
Joined: 06 Oct 2007
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[#permalink]  14 Nov 2007, 15:53
Yikes I had to catch myself on that one!

Yep C!
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[#permalink]  14 Nov 2007, 18:24
wow, good questiion.

Picked E because I wasnt careful reading the question
[#permalink] 14 Nov 2007, 18:24
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# Are positive integers P , Q , and R equal? 1) P = Q 2) Q^2 =

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