Two Inlet pipes A and B fill a tank in 12 & 15 Hours & Outlet pipe C empty’s the tank in 20 Hours. All pipes opened together; the tank will be filled in how many hours

Two Inlet pipes A and B fill a tank in 12 & 15 Hours & Outlet pipe C empty’s the tank in 20 Hours. All pipes opened together; the tank will be filled in how many hours

TYPE VITwo Inlet pipes A and B fill a tank in 12 & 15 Hours & Outlet pipe C empty’s the tank in 20 Hours. All pipes opened together; the tank will be filled in how many hours

Answer:

https://youtu.be/feMwHpovQpc