Question

A cylindrical tank of radius r and height h must be redesigned

Answer 1

Answer:

The wording makes the question harder than it actually is.

The question basically asks: if we have a cylindrical tank of radius R and height H, then which of the following changes will give a cylindrical tank with the volume with greatest difference from the volume of 2πr2h2πr2h (twice the original).

Answer E (π(1.5r)2∗(0.8h)=1.8πr2hπ(1.5r)2∗(0.8h)=1.8πr2h) gives the greatest difference from 2πr2h2πr2h.

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