GMAT Quantitative Reasoning Practice Test 1

Question : 61 of 100

Marks: +1, -0

If the volume of a cube is

x^3

cubic units, what is the number of square units in the surface area of the cube?

Solution:

If the volume of the cube is

x^3

, then one edge of the cube is

x

. The surface area of a cube is six times the area of one face, which is

x

times

x

. The total surface area is

6 x^2

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