Two pipes A and B can fill a tank in 20 and 30 hours, respectively. Both pipes are opened to fill the tank, but when the tank is one-third full, a lea...
Question
Two pipes A and B can fill a tank in 20 and 30 hours, respectively. Both pipes are opened to fill the tank, but when the tank is
one-third full, a leak develops through which one-fourth of the water supplied by both pipes goes out. Find the total time (in
hours) taken to fill the tank.