An oil tank has to be drained for maintenance. The tank is shaped like a cylinder that is 3 ft


An oil tank has to be drained for maintenance. The tank is shaped like a cylinder that is 3 ft long with a diameter of 2.2 ft.
Suppose oil is drained at a rate of 2.5 ft per minute. If the tank starts completely full, how many minutes will it take to empty
the tank?


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