Q. A girl can fill 4 taps and also one tap can be emptied in 8 hours. If both the taps are open then in how much time will be tap will be filled
Identify Rates: Identify the rates at which the taps fill and empty the tank.Filling tap rate: 1 tank per 4 hours, which is 41 tank per hour.Emptying tap rate: 1 tank per 8 hours, which is 81 tank per hour.
Calculate Net Rate: Calculate the net rate when both taps are open.Net rate = Filling rate - Emptying rate = 41 - 81 = 82 - 81 = 81 tank per hour.
Determine Total Time: Determine the total time to fill the tank at the net rate.Time = (Net rate)1=(81)1=8 hours.
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