A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 21 min at 80 km/hr, 11 min at 104 km/hr, and 47 min at 53 km/hr. She spends 18 min eating lunch and buying gas. 

 

Determine the distance between the two cities.

km

 

Determine the average speed for the trip.

km/hr