Three taps A, B and C are 12, Can be filled in 15 and 20 hours. If tap A is full Time should be open and B and C take turns Are opened for an hour, so how many tanks Will be filled in time?

Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour each alternatively, the tank will be full in

Three taps A, B and C can fill a tank in 20, 30 and 36 hours respectively. If all the taps are opened together, then in how many hours will the tank be filled?

Two pipes can fill a tank in 20 hours and 12 hours respectively pipe C can empty that tank in 15 hours. Of B is open all the time and A and C are open for one hour each alternately. Then the tank will be full in?

Tap A can fill a tank in 10 hours and tap B can fill same tank in 12 hours .Tap C can empty the same full tank in 6 hours .If all the taps are opened together,then what what portion of the tank will be filled after 6 hours ?

Two taps A and B can fill an overhead tank in 10 hours and 15 hours respectively. Both the taps are opened for 4 hour and then B is turned off. How much time will A take to fill the remaining tank ?

Three taps A,B and C fill a tank in 20 min, 15 min and 12 min, respectively. If all the taps are opened simultaneously, how long will they take to fill 40% of the tank?

If 4 taps can fill a tank in 10 hours, then in how many hours can 6 taps fill the same tank ?