Question

a man covers half of his journey at 6 km/hr and the remaining half at 3 km/hr. his average speed is

Answer 1

Answer is here
Hope it will help you
Sorry i have placed two photos.

Answer 2

Speed 1 = 6km/hr
Speed 2 = 3km/hr

Average speed = speed 1 + speed 2
-----------------------------
2
$= \frac{(6 + 3)}{2}$
$= \frac{9}{2}$
= 4.5 km/hr ......

Pls mark my answer as brainliest answer