In one hour a boat goes 11 km along the stream and 5 km against the stream. What is the speed of the boat in still water (in km/hr) ?
A boat travels at 8 km/hr in still water and water flows at 4 km/hr. The speed of the boat if it goes against the water stream is?
A boat moves at 11 km/hr in still water and the water stream flows at 9 km/hr. The speed of the boat if it goes along with the water stream is?