Two pipes A and B can fill a tank in 40 minutes and 60 minutes respectively. Pipe C is an emptying pipe whose efficiency is 25% more than that of pipe...
Question
Two pipes A and B can fill a tank in 40 minutes and 60 minutes respectively. Pipe C is an emptying pipe whose efficiency is 25% more than that of pipe B. Find the time taken by pipes A, B, and C together to fill the tank.