SOLUTION: Juan runs 4 Km in 30 minutes, how long will it take him to run 80 Km
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Question 947998: Juan runs 4 Km in 30 minutes, how long will it take him to run 80 Km
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
4/30=80/x
4x=2400
x=600 min or 10 hrs
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