A boat can row to a place 56 km away and return in 22 hours. The time taken to row 21 km downstream is equal to the time taken to row 12 km upstream. ...
Question
A boat can row to a place 56 km away and return in 22 hours. The time taken to row 21 km downstream is equal to the time taken to row 12 km upstream. What is the speed of the boat in still water?