SOLUTION: A plane travels from LA to NY at an average speed of 600 mph. On the way back from NY to LA it travels at an average speed of 400 mph. What is the average speed of the entire trip?

Question 600380: A plane travels from LA to NY at an average speed of 600 mph. On the way back from NY to LA it travels at an average speed of 400 mph. What is the average speed of the entire trip?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A plane travels from LA to NY at an average speed of 600 mph. On the way back from NY to LA it travels at an average speed of 400 mph. What is the average speed of the entire trip?
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Avg speed for a RT, or 2 segments of equal length is
2*600*400/(600 + 400)
= 480 mph
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The distance is not relevant.

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