Problem 8: Water flows from a conical tank at a rate of 0.02(2+h2)m3/min as shown in figure. If the tank is initially full, how long will it take for 75% of water to flow out of the tank? What is the flow rate at that time? Problem 8: Water flows from a conical tank at a rate of 0.02(2+h2)m3/min as shown in figure. If the tank is initially full, how long will it take for 75% of water to flow out of the tank? What is the flow rate at that time