Question

A train travels with a speed of 60 km h-' from
station A to station B and then comes back with a
speed 80 km from station B to station A. Find
() the average speed, and (ii) the average velocity
Ans (1) 68 57 km h. (i) zero​

Answer 1

hope u understood..we should take distance x.and we know that time equal to distance upon time.and apply average speed equal to total distance upon total time.