SOLUTION: A man completed 30 km of a journey at 6 km/h and the remaining 40 km of the journey in 5 hours. Find the average speed for the whole journey.

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Question 874738: A man completed 30 km of a journey at 6 km/h and the remaining 40 km of the journey in 5 hours. Find the average speed for the whole journey.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
d = r*t
r = d/t
---------
Divide the total distance by the total time.