GMAT Problem Solving (PS) | Re: If a cube has a volume of 64, what is its total surface area??

We can let n = the side of the cube and we have:

n^3 = 64

n = 4

Each face of the cube is 4^2 = 16 square units. Since a cube has 6 faces, the total surface area will thus be 6 x 16 = 96.

Answer: E

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