Question

A steamer goes downstream and covers the distance between two parts in 4 hours while it covers the same distance upstream in 6 hours . If the speed of the stream is 2km/h ,find the speed of the streamer in still water . ​

Answer 1

Answer:

Let the distance between the two ports be x km. 

Then, speed downstream = x/4 

And speed upstream = x/6

Speed of the stream, 

= [speed downstream - speed upstream] / 2

= (x/4 - x/6)/2

Or, (6x -4x)/40 = 2

Or, 2x/40 = 2 

Thus, x = 40 km.

Distance between two ports = 80 km.

Hope it helped!!!