Solve the problem.An express train travels 341 miles between two cities. During the first  of a trip, the train traveled through mountainous terrain. The train traveled  per hour slower through mountainous terrain than through level terrain. If the total time to travel between the cities was 7 hours, find the speed of the train on level terrain.

A. 33 mph
B. 43 mph
C. 63 mph
D. 53 mph


Answer: D

Mathematics

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