Interesting GMATFix Problem-9

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Interesting GMATFix Problem-9

by arora007 » Tue Sep 21, 2010 12:51 pm
In Fake city, the population density x, is inversely proportional to the square of the satisfaction indicator y, and y is directly proportional to the square root of the graduation rate,z. IF the graduation rate in Fake city, doubled how would the population density have to change for the satisfaction indicator to remain constant?
A)75% increase
B)50% increase
C) No change
D)50% decrease
E)75% decrease
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by goyalsau » Tue Sep 21, 2010 2:13 pm
I think its D,
what's the official Answer?

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by arora007 » Tue Sep 21, 2010 3:37 pm
OA is D indeed
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