**Pipes A and B can fill a tank in 16 hours and 24 hours, respectively, whereas pipe C can empty the full tank in 40 hours. All three pipes are opened together, but pipe C is closed after 10 hours. After how many hours will the remaining part of the tank be filled ?** A) 5 hours B) $$ 2 \\frac{1}{2} $$ hours C) 2 hours D) $$ 5 \\frac{1}{2} $$ hours Click Link for Answer