Question

Bill arranges 50 small cubes in a 5-by-10 array along a bookshelf. He claims that the volume of books that the shelf can hold is equal to 50 cubic units. Is his claim correct?

Answer 1

No.

Explanation:

Let `x` denote the side of each cube.

Then the volume of each cube is `x^3`.

There are `50` cubes, so the total volume will be `50x^3` and not `50` cubic units.

`50x^3=50` if and only if `x=1`.