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Cube

by shashank.ism » Mon Feb 15, 2010 11:28 pm
What is the volume of cube C ?
St.(A) The total surface area of C is 54 square inches.
St.(B) The area of each face of C is 9 square inches.
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Source: — Data Sufficiency |
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by papgust » Mon Feb 15, 2010 11:37 pm
A. Surface Area = 54
6a^2 = 54 [a is a side of a cube]

a can be found and also the volume. Sufficient.

B. Area of each face = 9
a^2 = 9

a can be found and also the volume. Sufficient.

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