Question

a train trevels at speed of 60 kmh from station a to b and comes back with speed of 80km h from station b to a find average speed and average velocity​

Answer 1

time taken by train from a to b=x/60hr. time taken by b to a =x/80hr . total time taken by train =x/60+x/80=7x/240hr. average speed=total distance/total time =2x/7x/240=480/7 km/h. hope u got your answer my dear friend