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 5 feet and a height of 10 feet, how far did the oil level drop in the stationary tank?
Choose the correct choice from the following
A) 2.5 ft  B) 1 ft  C) 0.5 ft  D) 0.25 ft  E) 0.025 ft
In order to fill up the tank, same volume is shifted from one tank to the other.   pi r1^2h1= pi r2^2 h2   5*5*10= 100 *100 *h2   h2= .025 ft   0.025 ft is the answer
<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 5 feet and a height of 10 feet, how far did the oil level drop in the stationary tank?