Question

26. A streamer covers the distance between two parts in 3 hours when it goes downstream and 5 hours when it
goes upstream. Find the speed of the streamer upstream if the stream flows at 3 km/h.​

Answer 1

Answer:

Step-by-step explanation:

Let the distance between the two ports be x km. 

Then, speed downstream = x/4 

And speed upstream = x/5 

Speed of the stream, 

= [speed downstream - speed upstream] / 2

= (x/4 - x/5)/2

Or, (5x -4x)/40 = 2

Or, x/40 = 2 

Thus, x = 80 km.

Distance between two ports = 80 km.

Answer 2

Answer:

hey mate here is your answer

please refer to the attachment

thank you :)