Question

is away from the school
The bus went to the farm at a speed of 40 km per hour and took
On the return trip, the speed was 60 km per hour. Therefore, it took
hours​

Answer 1

Answer:

first trip:- 40km= 40000m

Answer 2

Answer:

average speed = total length / total time

if x= distance AB in km then the two times to add are

Tab= x/40 and Tba= x/60

AvSpeed= 2*x/(x/40+x/60) = 2*60*40/(40+60) = 48km/hr

hope it's help you