Tom and Elizabeth have a competition to climb a hill. Elizabeth takes 30 minutes to climb the hill. Tom takes four times as long as Elizabeth does to climb the hill. How many hours does it take Tom to climb up the hill? Give me reasons, before answering the question
It takes Tom 30 * 4 = 120 minutes to climb the hill. It takes Tom 120 / 60 = 2 hours to climb the hill. So the final answer is 2.