Question

A man rows down a river 15 km in 3 hrs, with the stream and returns in 7.5 hrs. the rate at which he rows in still water is

Answer 1

The speed of the boat in still water is. ... A man rows down a river 15 km in 3 hrs. with the stream and returns in 7.5 hrs. ... It takes him twice as long to row up as to row down the river.