Water is poured into a cylindrical well at the rate of 22 cubic meters per hour, the level of water in the tank rises at a rate of 0.7 meters per hour. Which of the following best approximates the diameter of the tank in meters?  Choose the correct option
A) √10/2 B) √10 C) 2√10 D) 5 E) 10
Here's my re-worked solution:   volume = 22 = pi (r^2)(0.7)   22 = 22/7 (7/10)(r^2)   10 = r^2   r = sqrt(10)   Diameter=2*sqrt(10)   Ans: 2√10
<result>C</result>
Water is poured into a cylindrical well at the rate of 22 cubic meters per hour, the level of water in the tank rises at a rate of 0.7 meters per hour. Which of the following best approximates the diameter of the tank in meters?