Jonathan drove to the airport to pick up his friend. A rainstorm
forced him to drive at an average speed of 45 mph, reaching the
airport in 3 hours. He drove back home at an average speed of
55 mph. How long, to the nearest tenth of an hour, did the trip home
take him?
(1) 2.0 hours (3) 2.8 hours
(2) 2.5 hours (4) 3.7 hours