Pipe `A` can fill an empty tank in 6 hours and pipe `B` in 8 hours. If both the pipes are opened and after 2 hours pipe `A` is closed, how much time `B` will take to fill the remaining tank?

Pipe A alone can fill a tank in 8 hours. Pipe B alone can fill it in 6 hours. If both the pipes are opened and after 2 hours pipe A is closed, then the other pipe will fill the tank in

Pipe A can fill a tank in 30 hours and pipe B in 45 hour.If both the pipes are opened in an empty tank how much time will they take to fill it?

Two pipes A and B can fill a tank in 6 hours and 3 hours respectively.Both the pipes are opened simultaneously and pipe A is closed after 1hours.Find the time taken by B to fill the remaining part of the tank (in hours).

Pipe A can fill a tank in 6 hours. Pipe B can empty it in 15 hours. If both the pipes are opened together, then the tank will be filled in how many hours?

Pipe A can fill an empty tank in 5 hours while pipe B can empty the full tank in 6 hours.If both are opened at the same time in the empty tank,how much time will they take to fill it up completely?