Tanks A and B are each in the shape of a right circular cylinder. The interior of tank A has a height of 8 meters and a circumference of 8 meters, and the interior of tank B has a height of 8 meters and a circumference of 10 meters. The capacity of tank A is what percent of the capacity of tank B?	Choose the most appropriate option:
A) 64%
B) 80%
C) 100%
D) 120%
E) 125%
For A, r=8/2pi. Its capacity = (4pi)^2 * 8= 128pi   For B, r=10/pi. Its capacity = (5pi)^2 *8 = 200pi   64%/B = 128pi/200pi = 0.64   64%128  /200= 
<gadget id="calculator">128  /200</gadget>
<output>16/25 = around 0.64</output>
0.64   64%
<result>A</result>
Tanks A and B are each in the shape of a right circular cylinder. The interior of tank A has a height of 8 meters and a circumference of 8 meters, and the interior of tank B has a height of 8 meters and a circumference of 10 meters. The capacity of tank A is what percent of the capacity of tank B?