Tanks A and B are each in the shape of a right circular cylinder. The interior of tank A has a height of 10 meters and a circumference of 6 meters, and the interior of tank B has a height of 6 meters and a circumference of 10 meters. The capacity of tank A is what percent of the capacity of tank B? Select: A) 60% B) 80% C) 100% D) 120% E) 125%
The radius of tank A is 6/(2*pi).   The capacity of tank A is 10*pi*36 / (4*pi^2) = 180 / (2*pi)   The radius of tank B is 10 / (2*pi).   The capacity of tank B is 6*pi*100 / (4*pi^2) = 300 / (2*pi)   Tank 60% / Tank B = 180/300 = 6/10 = 60%   The answer is 60%.
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Tanks A and B are each in the shape of a right circular cylinder. The interior of tank A has a height of 10 meters and a circumference of 6 meters, and the interior of tank B has a height of 6 meters and a circumference of 10 meters. The capacity of tank A is what percent of the capacity of tank B?