Mrs. Bishop ran her last marathon (26.2 miles) in 4 hours 48 minutes while Dr. Farrar ran a half-marathon (13.1 miles) in 2 ½ hours. Who had the faster running speed? How do you know?

3 answers

Come on. Change the times to minutes (each hour is 60 min)
then divide each distance by its time....that is the speed of each.
Mrs. Bishop: 26.2mi/4h = ----mi/h.
Dr. Farrar: 13.1mi/2.5h - ----mi/h.
Bishop ran twice as far in LESS THAN twice Farrar's time