Water in a cylindrical tank of diameter 4m and height 10 m is released – InterviewSolution

1.	Water in a cylindrical tank of diameter 4m and height 10 m is released through acylindrical pipe of diameter 10 cm at the rate of 2.5 Km/hr. How much time will it taketo empty the half of the tank? Assume that the tank is full of water to begin with.
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