A full stationary oil tank that is a right circular cylinder has a radius of 100 feet and a height of 25 feet. Oil is pumped from the stationary tank to an oil truck that has a tank that is a right circular cylinder until the truck's tank is completely filled. If the truck's tank has a radius of 4 feet and a height of 10 feet, how far (in feet) did the oil level drop in the stationary tank? Choose the correct choice from the following
A) 1.6
B) 1
C) 0.4
D) 0.16
E) 0.016
The volume of oil pumped to the tank = The volume of oil taken away from stationary cylinder.   pi*16*10 = pi*h*100*100 (h is distance that the oil level dropped)   h = 160/10,000 = 16/1000= 
<gadget id="calculator">16/1000</gadget>
<output>2/125 = around 0.016</output>
0.016 ft   The answer is 0.016.
<result>E</result>
A full stationary oil tank that is a right circular cylinder has a radius of 100 feet and a height of 25 feet. Oil is pumped from the stationary tank to an oil truck that has a tank that is a right circular cylinder until the truck's tank is completely filled. If the truck's tank has a radius of 4 feet and a height of 10 feet, how far (in feet) did the oil level drop in the stationary tank?