SOLUTION: John drives 60 miles to his destination at an average speed of 40 mph and makes the return trip at an average speed of 30 mph. What was his average speed for the entire trip?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: John drives 60 miles to his destination at an average speed of 40 mph and makes the return trip at an average speed of 30 mph. What was his average speed for the entire trip?       Log On


   

Question 846382: John drives 60 miles to his destination at an average speed of 40 mph and makes the return trip at an average speed of 30 mph. What was his average speed for the entire trip?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1.5 hours going
2 hours return
3.5 hours total for 120
120/3.5=34.28 mph average