Question

2 hours after a freight train leaves delhi a passenger train leaves the same station travelling in the same direction at an average speed of 60 km/hr. after travelling 4 hrs the passenger train overtakes the freight train. the average speed of the freight train was?

Answer 1

let the freight train is = f
and passenger is = p

let distance traveled by both the trains is
= d

so as distance/time = speed
d = vt
d = 60×4
d = 240km


and also we know
time taken by f = 6hr
so
v = d/t
v = 240/6
v = 40km/hr


so average speed of the
freight train = 40km/hr


hope it helps you
@di