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# A boat takes 3.10 hours to travel 35.0 km down a river; then 6.10 hours to return_...

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###### A boat takes 3.10 hours to travel 35.0 km down a river; then 6.10 hours to return_

A boat takes 3.10 hours to travel 35.0 km down a river; then 6.10 hours to return_

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