Three pipes can fill a reservoir in 10, 15 and 20 hours respectively. If the three taps are opened one after another in the given order, with a certain fixed time gap between them, the reservoir fills in 5 hours. The time gap is `15\ m in` b. `\ 30\ m in` c. `45\ m in` d. `\ 1\ h r`

Three pipes can fill a reservoir in 10,15 and 20 hours respectively.If the three taps are opened one after another in the given order, with a certain fixed time gap between them, the reservoir fills in 5hours.The time gap is 15backslash m in b.backslash30backslash m in c.45backslash m in d.backslash1backslash hr

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 taps A and B can fill a tank in 10 hours and 15 hours, respectively .If both the taps are opened together the tank will be filled in how many hours?

Pipes A and B can fill a tank in 5 hours and 20 hours respectively. If both pipes are opened then, how much time (in hours) it will take to fill the tank?

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, C can fill an overhead tank in 4, 6 and 12 hours respectively. How long would the three taps take to fill the tank if all of them are opened together ?

Pipes A and B can fill an empty tank in 10 hours and 15 hours respectively. If both are opened together in the empty tank, how much time will they take to fill it completely?