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Joe is on a cross-country trip from New York to Los Angeles. He drives for 45.0 min at 70.0 km/h, 10.0 min at 95 km/h, and 30.0 min at 55.0 km/h, and he spends 20.0 min eating lunch and buying gas. What is the average speed for this part of his trip? a. 67.6 km/h c. 54.7 km/h b. 68.4 km/h d. 53.8 km/h
Total travel time is 105 minutes. Total distance traveled is 95.83 km. B is not the answer.