Water is leaking out from a cylinder container at the rate of 0.31 m^3 per minute. After 10 minutes, the water level decreases 16 meters. What is value of the radius in meters?  Select the correct option
A) 1/2  B) 1/3  C) 1/4  D) 1/6  E) 1/8
10*0.31= 
<gadget id="calculator">10*0.31</gadget>
<output>3.1</output>
3.1= pi*R^2*h   R^2 = 3.1 / (pi*16) which is about 1/16   R = 1/4   The answer is 1/4.
<result>C</result>
Water is leaking out from a cylinder container at the rate of 0.31 m^3 per minute. After 10 minutes, the water level decreases 16 meters. What is value of the radius in meters?