A tank can be filled in 10 hours. After a leak in its bottom, it takes 12 hours to fill the tank. Find the time taken by the leak to empty the full tank?
Answer & explanation
Correct answer: option 3
The following chart has to be made first:
Efficiency without leak = 6
Efficiency of leakage = -1
Efficiency after leak = 6 - 1 = 5
Thus, it takes 60 hours for a tank to get emptied: \(\frac{ 60}{1 }\) = 60 hours