A boat can go 54 km upstream in 6 hours. If the speed of the stream is 4.8 km/h, how much time (in hours) will the boat take to cover a distance of 27...

A man rows 18 km downstream in 4 hours and returns upstream in 12 hours. Calculate the speed of the...

A boat travels 7 kilometers upstream in 42 minutes. If the stream flows at a rate of 3 kilometers pe...

P, Q and R are three towns located on a river flowing at a constant rate. Town Q is situated equidi...

A rower travels 12 miles downstream in a river in 6 hours less time than it takes to travel the same...

A boat takes 2 hours to travel downstream a river from port A to port B, and 3 hours to return to p...

A man can row a boat at 8 km/h in still water. If the speed of the water current is 2 km/h and it t...