Two pipes A and B can fill a tank in 24 minutes and 32 minutes respectively. If both the pipes are opened simultaneously, after how much time B should be closed so that eh tank is full in 18 minutes?

Two pipes A and B can fill a tank in 18 minutes and 24 minutes respectively. If both the pipes are opened simultaneously, then after how much time should pipe B be closed so that the tank is full in 12 minutes?

Two pipes A and B can fill a tank in 12 and 16 min, respectively. If both the pipes are opened simultaneously , after how much time should B be closed so that the tank is full 9 min ?

Pipe A and pipe B can fill a tank in 24 minutes and 28 minutes , respectively. IF both the pipes are opened simultaneously, then after how many minues. Should pipe B be closed such that the tank becomes full in 18 minuts ?

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?

Two pipes A and B can fill a tank in 12 minutes and 18 minutes respectively. If both the pipes are opened simultaneously, how long will they take to fill the tank ?