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 9 meters. What is value of the radius in meters?  Select the correct option: A) 1/2 B) 1/3 C) 1.5 D) 3 E) 6
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*9) which is about 1/9   R = 1/3   The answer is 1/3.
<result>B</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 9 meters. What is value of the radius in meters?