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Solve the following problem given below:

Problem: A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 40.0 min at 90.0 km/h, 19.0 min at 80.0 km/h, and 40.0 min at 50.0 km/h and spends 25.0 min eating lunch and buying gas.

Part A: Determine the average speed for the trip.

km/h

Part B: Determine the distance between the initial and final cities along the route.

I need expert help to solve the above question.

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