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A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 10.0 min at 100.0 km/h, 16.0 min at 50.0 km/h and 40.0 min at 55.0 km/h, and spends 30.0 min eating lunch and buying gas.
a. Determine the average speed for the trip.
_____km/h
b. Determine the distance between the initial and final cities along this route.
_____km
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