Q. A tank is filled by a pipe in 10 hours. Due to a leak, it takes 15 hours to fill. In how many hours can the leak empty the full tank?
✅ Correct Answer: (C)
30 hours
Explanation: Leak rate = 1/10 − 1/15 = 1/30.
Explanation by: Kanak Sharma
Leak rate = 1/10 − 1/15 = 1/30.