A tank can be filled by tap A in 4 hours while tap B can fill the same in 6 hours. Tap C can empty the filled tank in 8 hours. If all the three taps are opened simultaneously, how much approximate time will be taken to fill the tank completely?
1
3 hours, 26 minutes
2
2 hours, 26 minutes
3
3 hours, 16 minutes
4
3 hours, 20 minutes