Question

a motorcyclist drives from place a to b with a uniform speed of 30 km h-1 and returns from place b to a with a uniform speed of 20 km h-1. find his average speed.​

Answer 1

Answer:

25 km/h

Explanation:

average speed = (initial speed + final speed) /2

=(30+20)/2

=50/2

=25km/h

Answer 2

Question :

A motorcyclist drives from place a to b with a uniform speed of 30 km h-1 and returns from place b to a with a uniform speed of 20 km h-1. find his average speed.

Answer :

$average \: speed = \\ \frac{initial \: velocity - final \: velocity}{2} \\ \frac{30 - 20}{2} \\ 25km/hr$