Q. Pipe A can fill a tank in 7 hours and pipe B can empty it in 14 hours. If both are opened together, the tank will be filled in?
✅ Correct Answer: (C)
14 hours
Explanation: Net rate = 1/7 − 1/14 = 1/14.
Explanation by: Kanak Sharma
Net rate = 1/7 − 1/14 = 1/14.