A boat takes two hours to travel 8 km down and 8 km up the

Last updated: 5/30/2023

A boat takes two hours to travel 8 km down and 8 km up the river when the water is still will the boat take to make the same trip when the river starts flowing at 4 kmph 1 2 hour 2 2 hour 40 minute 3 3 hour 4 3 hour 40 minute