The Connecticut River flows at a rate of 5 km / hour for the length of a popular scenic route. If a cruiser to travels 4 hours with the current to reach a drop-off point, but the return trip against the same current took 6 hours. Find the speed of the boat without a current?

The speed of the boat without a current is___

1 answer

since distance = speed * time,

4(s+5) = 6(s-5)