Task: Question Answering
Input (English): Question: A water tank is one-fifth full.Pipe A can fill a tank in 10 minutes and pipe B can empty it in 6 minutes.If both the pipes are open,how long will it take to empty or fill the tank completely?

 Option A: 6 min.to empty

 Option B: 9 min.to empty

 Option C: 5 min.to empty

 Option D: 4 min.to empty

 Option E: 3 min.to empty
Output (English): Option E