Mathematics, 21.04.2020 16:33, nathalyviruete

The river boat, Delta Duchess, paddled upstream at 12 km/h, stopped for 2 hours of sightseeing, and paddled back at 18 km/h. How far upstream did the boat travel if the total time for the trip, including the stop, was 7 hours?

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The river boat, Delta Duchess, paddled upstream at 12 km/h, stopped for 2 hours of sightseeing, and...