Answer:
15 km
Explanation:
given:
1 hour=6 km
9:30--12:00=2.5 hours
•°•2.5×6=15 km
15
if he walks 6 kilometres per hour multiply 6 times 2 and you get 12 and he walked for half an hour and half of 6 is 3 so 12 plus 3 equals 15
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