Boat and Stream problems are frequently asked problems in Competitive Exams and Entrance Exams.
Stream: Moving water of the river is called stream.
Upstream: If a boat or a swimmer moves in the opposite direction of the stream then it is called upstream.
Downstream: If a boat or a swimmer moves in the same direction of the stream then it is called downstream.
Still Water: If the water is not moving then it is called still water.
- When speed of a swimmer or a boat is given then it normally means speed in still water.