A boy runs 4km to words east and then he runs to words left 5km.He takes 30min to run .then finds its average speed into m/s.
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Answer:
5m/s
Explanation:
The boy runs total 4+5=9km in 30min or 1\2 hour
or 18km/h
therefore by converting it into m/s we get
5m/s
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