A water tank can be filled by an inlet pipe in 8 hours. It takes twice that long for the outlet pipe to empty the tank. How long will it take to fill the tank if both pipes are open?
1 Answer
Aug 31, 2017
If both pipes are open, it fills the tank in
Explanation:
Inlet pipe fills water tank in
Outlet pipe empties the tank in
therefore, outlet pipe empties half the tank in
therefore, if both pipes are open in
Hence, if both pipes are open, it fills the tank in
