Pipes A and B together can fill a tank in 16 hours, where as pipe C alone can empty the full tank in 24 hours. A and B were opened together for 10 hours and then closed. Pipe C was then opened . The tank will now be emptied by C in `:`

Options

A. 10 hours
B. 12 hours
C. 15 hours
D. 18 hours

Answer

C