The speed of a boat in still water is 11 km/hr. It can go 12 km upstream and return downstream to its original point in 2 hr 45 min. Find out the speed of the stream.

The speed of a boat in still water is 11 km/hr. It can go 12 km upstre

1.	The speed of a boat in still water is 11 km/hr. It can go 12 km upstream and return downstream to its original point in 2 hr 45 min. Find out the speed of the stream.
Answer» The speed of the stream is 5 km/hr. The question is a real-life application of linear equations in two variables.