Question

A person every time in 5 hours
4 km opposite and 16 in the direction of the stream
Kimi floats. What is the speed of the current?​

Answer 1

Answer:

1.2 km/h

Step-by-step explanation:

speed upstream = 4/5 km/h

speed down stream = 16/5 km/h

speed of stream

= (S down - S up)/2

=(16/5-4/5)/2=12/ 10=1.2 km/hr

OR

let speed of man = x & stream = y

S downstream , x + y = 16/5 --(1)

S upstream ,x - y = 4/5 ---(2)

on adding(1) & (2), we have

2x = 20/5 =>x = 2

speed of stream ,

y = (16/5) - 2 = 6/5 = 1.2 km/h