SOLUTION: A person crosses a lake of width 600 m in 5 minutes by boat. What is his speed in km per hour?

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Question 951275: A person crosses a lake of width 600 m in 5 minutes by boat. What is his speed in km per hour?
Answer by macston(5194) About Me  (Show Source):
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ANSWER: 600m/5min(1km/1000m)(60 min/1hr)=7.2 km/hr