SOLUTION: If a car driver travelled 3 km in 2 hours then stopped for a one hour rest and then drives again for 4 hours covering 5 km. What is the average speed throughout his journey?

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Question 697842: If a car driver travelled 3 km in 2 hours then stopped for a one hour rest and then drives again for 4 hours covering 5 km.
What is the average speed throughout his journey?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
If a car driver traveled 3 km in 2 hours then stopped for a one hour rest and then drives again for 4 hours covering 5 km.
What is the average speed throughout his journey?
:
Average speed = total dist/total time
:
Av = %28%283%2B5%29%29%2F%28%282%2B1%2B4%29%29 = 8%2F7 km/h