The speed of a boat in still water is 8 km/hr. It is 22 km downstream and 22 km upstream...

The speed of a boat in still water is 9 km/hr. It can go 12 km upstream and 12 km downstream in 3 hours. Find the speed of the stream.

The speed of a boat in still water is 8km/hr It can go 15km upstream and 22km downstream in 5 hours.Find the speed of the stream.

The speed of a boat in still water is 42 km/hr .It covers a distance of 30 km upstream in 1 hour .What is the speed (in km/hr) of the stream ?

The upstream speed of the boat is 40 km/hr and the speed of the boat in still water is 55 km/hr. What is the downstream speed of the boat ? A. 75 km/hr B. 70 km/hr C. 60 km/hr D. 65 km/hr