Question

going against the current a boat takes 6 hours to make a 120 mile trip when the boat travels with the current on the return trip it takes 5 hours what is the rate of the boat in still water

Answer 1

Speed against current = 120 miles / 6 hours = 20 miles / hour
Speed with current = 120 miles /5 hours = 24 miles / hour.

Speed of boat in still water = (20+24)/2 = 22 miles / hour