Question

a streamer covers the distance downstream and upstream in 6 hours and 8 hours between 2ports .if the speed of the stream is 4km/ h .
find the speed of the streamer in the Stillwater​

Answer 1

Let the steamer speed will be x.

Downstream speed = (x+4)

Distance between the points = 6(x+4)    ---------- (1)

Upstream speed = (x-4)

Distance between the points = 8(x-4)     ------------ (2)

On solving (1) and (2), we get

6(x+4) = 8(x - 4)

6x+24=8x-32

x = 56

speed of the streamer in the still water​ = 56 km/hr