SOLUTION: A truck with a heavy load drove from Boston to New York at a speed of 40 mph. After unloading, it returned from New York to Boston at a speed of 60 mph. What was the average speed

Question 1053029: A truck with a heavy load drove from Boston to New York at a speed of 40 mph. After unloading, it returned from New York to Boston at a speed of 60 mph. What was the average speed for the whole trip?

Found 2 solutions by Alan3354, ikleyn:
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
A truck with a heavy load drove from Boston to New York at a speed of 40 mph. After unloading, it returned from New York to Boston at a speed of 60 mph. What was the average speed for the whole trip?
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Avg = 2*40*60/(40+60) = 48 mi/hr
Answer by ikleyn(52769)   (Show Source): You can put this solution on YOUR website!
.
For detailed solution, see the lessons
    - Calculating an average speed: a train going from A to B and back
    - One more problem on calculating an average speed
in this site.

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