Two pipes A and B can fill a tank in 1 h and 75 min, respectively. There is also an outlet C. If all the three pipes are opened together. The tank is full in 50 min. How much time will be taken by C to empty the full tank?

Two taps A and B can fill a tank in 1 hours and 75 min respectively. There is an outlet tap C. if all the taps are opened together the tank will fill in 50 min. In how many hours tap C can alone empty the tank.

Pipes A and B can fill a tank in 30 minutes and 37(1)/(2) minutes, respectively. C is an outlet pipe when all the three pipes are opened together, then the tank is full in 25 minutes. In how much time (in minutes) can C alone empty (2)/(5) th part of the tank ?

Pipes A and B can fill a tank in 5 and 6 h, respectively. Pipe C can fill it in 30 h. If all the three pipes are opened together, then in how much time the tank will be filled in?

Two pipes A and B can fill a tank in 36 min and 45 min, respectively. A pipe 'C' can empty the tank in 30 min. If all the three pipes are opened simultaneously, then in how much time the tank will be completely filled?

Two pipes A and B can fill a tank in 12 minutes and 15 minutes, respectively. When an outlet pipe C is also opened, then the three pipes together can fill the tank in 10 minutes. In how many minutes can C alone empty the full tank?

Pipes A and B can fill a tank in 18 minutes and 27 minutes, respectively. C is an outlet pipe. When A, B and C are opened together, the empty tank is completely filled in 54 minutes. Pipe C alone can empty the full tank in :

Two pipes A and B can fill a tank in 24 and 32 min, respectively. If both the pipes are opened together, after how much time pipeB should be closed so that the tank is full in 9 min?