You are given a passage. You need to construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) its answer is the whole paragraph. Avoid creating questions that can be answered correctly without actually understanding the paragraph.

Volume of cylinder = area of base * height.
Since the base is a circle, that part is Pi *r^2
So we have Pi * r^2 * height -->
3.14 * 12^2 * 21 = ?

Volume of square prism = area of base * height
Since the base is a square, that part is side^2
So we have 12 * 12 * 21 = ?

Subtract the results for your final answer.
In cubic meters how much greater is the volume of a cylinder with height 21m & a radius 12m than the volume?