Question

a body covers a distance of 100km with a speed of 60km/hr and due to less traffic returns the same distance with a speed of 70km/hr. Find the average speed​

Answer 1

Calculate speed for the hole journey. A. 48 m/s. B. 480 km/hr.

Using speed = DistanceTime Time = distancespeed We have total time = 10060 + 10040 = 256Hr Now, Average speed = Distance(tot)Time(tot) = 200 256 Average

Answer 2

65km/hr is the answer hope this helps