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Are positive numbers p, q, and r equal?

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Source: — Data Sufficiency |
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by theCodeToGMAT » Sat Oct 05, 2013 11:48 pm
To find: P, Q and R Equal?

Statement 1:
p=q
No info for "R"
INSUFFICIENT

Statement 2:
q^2 = r^2
since numbers are positive..
q=r
But, no info or "p"
INSUFFICIENT

Combining.
p=q=r
SUFFICIENT

Answer [spoiler]{C}[/spoiler]
R A H U L
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by TheGmatTutor » Thu Oct 10, 2013 5:06 pm
I agree with himu, the answer is C. The key is that all three numbers are positive. If they hadn't specified that, the answer would be E.

I wrote an article about how's important to pay attention to these small details:

GMAT Data Sufficiency: Small Details In The Question Stem
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