A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 60.0
min at 90.0 km/h, 8.0 min at 80 km/h and 35.0 min at 40.0 km/h, and spends 30.0 min eating lunch and buying gas along
the way.
To find the average speed for the trip, which one or more of the following quantities must be known?
The total distance traveled.
The total time, including the break time.
The total driving time (excluding break time).
Calculate the distance traveled along this route.
(You need to enter the units here, and it is OK to use km.)
Calculate the average speed for the trip.
(You again need to enter units, and km/h is OK.)