1) Mark has 153 hotdogs and 171 hamburgers. He wants to put the same number of hotdogs and hamburgers onto the same tray. What is the greatest number of trays Mark can use to accomplish this?
2) Rob can complete his bus route in 6 hours. Joan can complete her bus route in 3 hours. If they both left the terminal at 3:00 AM and after each completed route returned to the terminal, determine the next time they would leave the terminal at the same time.
