1) A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 40 min at 90 km/h, 14 min at 120 km/h, and 50 min at 44 km/h and spends 20 min eating lunch and buying gas. (a) Determine the average speed for the trip. (b) Determine the distance between the initial and final cities along the route.
