Pipe A and pipe B can fill a tank alone in 6 and 8 hours respectively and pipe C can empty the same tank in 12 hours. If all three pipes are opened at the same time then in how many time the tank will be filled?
1
4 hours 36 minutes
2
4 hours 12 minutes
3
4 hours 48 minutes
4
3 hours 48 minutes
5
None of the above/More than one of the above