Question

Velocity of a man in steady water is 4.5 kmph. Velocity of
the stream is 1.5 kmph. If he goes upstream and come
back. What is the average velocity?
(a) 4 kmph (b) 5 kmph (C) 6 kmph (d) 7 kmph​

Answer 1

Step-by-step explanation:

Upstream velocity 4.5-1.5=3

Downstream velocity= 4.5+1.5=6

so,average velocity= 9/2= 4.5 (Ans.)

Answer 2

Step-by-step explanation:

please see picture for step by step explanation

ans = 4kmph