A pipe can fill a tank in 15 hours. Due to a leakage in the bottom, it is filled in 20 hours. If the tank is full, how much time will the leakage take to empty it?
Answer & explanation
Correct answer: option 2
A is inlet pipe & B is a leakage.
If the capacity of the tank is taken as 60, then ;
∴ efficiency of B = 4 - 3 = 1
∴ Time taken by leakage to empty a full tank = \(\frac{60}{1}\) = 60 hrs.