I think it is need more information..
A certain river has a speed of 2.48 km/h. A rower travels downstream for 2.5 h and returns in 4.5 h. Find his rate in still water, and find the one-way distance traveled. Round the answers to three significant digits.
I am really struggling with this, I mean I have tried to get this with a group of other kids and no one can get it!
Any help is greatly appreciated !