SOLUTION: A train travels from city A to city B to city C. The distance from A to B is 23 miles. The distance from B to C is 45 miles. The train took 1 hour for the trip from A to B and the

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Question 942346: A train travels from city A to city B to city C. The distance from A to B is 23 miles. The distance from B to C is 45 miles. The train took 1 hour for the trip from A to B and then went from B to C at an average speed of 30 miles per hour. What was the average speed of the train for the entire trip (in miles per hour)?
Answer by lwsshak3(11628) About Me  (Show Source):
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A train travels from city A to city B to city C. The distance from A to B is 23 miles. The distance from B to C is 45 miles. The train took 1 hour for the trip from A to B and then went from B to C at an average speed of 30 miles per hour. What was the average speed of the train for the entire trip (in miles per hour)?
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Average speed=total distance traveled/total travel time
total distance traveled=23+45=68 miles
total travel time=1+45/30=1+(3/2)=2.5 hrs
average speed of the train for the entire trip=68/(2.5)=27.2 mph