SOLUTION: A man walks down the road for half an hour at an average speed of 3 kph. He waits 10 minutes for the tricycle, which brings him back to his starting point at 7:15. If the man began

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Question 588664: A man walks down the road for half an hour at an average speed of 3 kph. He waits 10 minutes for the tricycle, which brings him back to his starting point at 7:15. If the man began his walk at 6:25 the same morning, what was the average speed of the tricycle?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The length of the road is +d+=+3%2A%281%2F2%29+
+d+=+1.5+ km
He started at 6:25
6:25 + 30 min = 6:55
He waits 10 min
6:55 + 10 min = 7:05
He is back at his starting point at 7:15
7:15 - 7:05 is 10 min
So, on the tricycle he covered +1.5+ km
in 10 min
+1.5+=+r%2A%2810%2F60%29+
+r+=+9+|
The average speed of the tricycle is 9 km/hr