Posted by Lexi on .
Tom was floating down the river on a raft when, 1km lower down, Michael took to the water in a rowing boat. Michael rowed downstream at his fastest pace. Then he turned around and rowed back, arriving at this starting point just as Tom drifted by. If Michael's rowing speed in still water is ten times the speed of the current in the water, what distance had Michael covered before he turned his boat around?