It takes 5 workers 12 hours to unload one truck. How long would it take 6 workers to unload the truck?
5 workers * 12 hours = 60 hours for one worker.
60 hours for one worker / 6 workers = 10 hours
5 workers * 12 hours = 60 hours for one worker.
60 hours for one worker / 6 workers = 10 hours