SOLUTION: A car travels 120 km from A to B at 30 km per hour but returns the same distance at 40 km per hour. The average speed for the round trip is closest to

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Question 243386: A car travels 120 km from A to B at 30 km per hour but returns the same distance at 40 km per hour. The average speed for the round trip is closest to
Found 2 solutions by oberobic, GARGI:
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
The average is (30+40)/2 = 35.

Answer by GARGI(3) About Me  (Show Source):
You can put this solution on YOUR website!
With 30km/h car travel 120 km in 4hours and return Journey of 120km in 3 hours.
so car travels total 240 km in 7 hours. So the average speed of car for this total journey is appro. 34.28km/hr(240km/7houres) i.e. closest to 34 km/hr.