Boats & Streams is one of the favorite areas of examiners. Questions from this area appear in a significant proportion in the quant section of almost all the competitive exams. Before starting with the questions, go through the basic concepts of the topic.
- Still Water: If the speed of the water is zero, i.e. water is stationary, then it is called still water.
- Stream: The moving water in the river is known as a stream.
- Upstream: If a boat or a swimmer moves in the opposite direction of the stream, then it is called upstream.
- Downstream: If a boar or a swimmer moves in the same direction of the stream, then it is called downstream.
- When the speed of a boat or a swimmer is given, it usually means speed in still water.
Suppose the speed of boat in still water is u km/hr and the speed of the stream is v km/hr.