A boat covers 18 km downstream in 3 hours. If the speed of the current is 33 1 3 % 33 \frac{1}{3} % 33 3 1 % of its downstream speed, in what time w...
Question
A boat covers 18 km downstream in 3 hours. If the speed of the current is of its downstream speed, in what time will it cover a distance of 100 km upstream?