SOLUTION: A train travelled for the first 200 miles of its trip at a speed of 50 mph and the next 130 miles at a speed of 65 mph. What is the average speed of the train during the whole trip

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Question 1144892: A train travelled for the first 200 miles of its trip at a speed of 50 mph and the next 130 miles at a speed of 65 mph. What is the average speed of the train during the whole trip?
A)60.5
B)60
C)57.5
D)55
Answer by ikleyn(52756) About Me  (Show Source):
You can put this solution on YOUR website!
.

The total distance is 200 + 130 = 330 miles.


The total time = 200%2F50 + 130%2F65 = 4 + 2 = 6.


The average speed = 330%2F6 = 55 mph.    ANSWER