Question

Pipe A can fill an empty tank in 10 hr pipe B can fill the same tank, when empty in 15 hr and pipe C can empty the same tank, when completely full in 12 hr. Find the time taken to fill half the tank if all three pipes are opened simultaneously and when the tank is empty.

• A. 4 h
• B. 6 h
• C. 12 h
• D. 8 h

Answer 1

Answer: (B)