One pipe can fill a tank in 50 hours. Due to a leak the total time taken to fill the tank was 60 hours. How much time will the leak take to empty a half-filled tank?
1
120 hours
2
90 hours
3
180 hours
4
80 hours
5
150 hours
One pipe can fill a tank in 50 hours. Due to a leak the total time taken to fill the tank was 60 hours. How much time will the leak take to empty a half-filled tank?