Q. A pipe can fill a tank in 8 hours and another pipe can empty it in 12 hours. If both are opened together, the tank will be filled in?
✅ Correct Answer: (C)
24 hours
Explanation: Net rate = 1/8 − 1/12 = 1/24.
Explanation by: Kanak Sharma
Net rate = 1/8 − 1/12 = 1/24.