A tank is normally filled by a pipe in 20 h, but takes 5 h more to fill because of a leak in its bottom. If the tank is full, then how much time will the leak take to empty the tank?
1
25 h
2
50 h
3
75 h
4
100 h
A tank is normally filled by a pipe in 20 h, but takes 5 h more to fill because of a leak in its bottom. If the tank is full, then how much time will the leak take to empty the tank?