This is aptitude questions and answers section on Volumes with explanation for various interview, competitive examinations and entrance tests.

1. The edge of a cube is 2a cm. Find its surface?
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2. The surface of a cube is 24sq cm. Find its volume?
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3. The volume of a cube is 1728 cc. Find its surface.
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Answer: Option A

Explanation:

a^{3} = 1728 =>
a = 12

6a^{2} = 6 * 12 * 12 = 864

4. How many cubes of edge 2 dm can be cut out of a meter cube?
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5. The edge of three cubes of metal is 3 dm, 4 dm and 5 dm. They are melted and formed into a single cube. Find the edge of the new cube?
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