Question 417320
7.2 miles in 1 h 10 m

7.2 = 7 2/10 = 7 1/5 = 36/5 miles

1h 10 m = 1 10/60 = 1 1/6 hours = 7/6 hours
..

7/6 h --------------- 36/5 miles
1 hour ---------------- ?

(36/5)  /  (7/6)

36/5 * 6/7

6.17 mph