Answer: 12 kilometer
Explanation:
If he run 4 kilometer per 20 mins, it will take him one hour to run 12 kilometer.
Original
4 kilometer. X kilometer
——————- = ————————-
20 mins. 60 min
20x3 = 4x3
4x3= 12 kilometer
Answer:
12
there are 60 minutes in a hour
60/20 is 3
so you muiltply 4 and 3 to get 12
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