A passenger train of length 60 m travels at a speed of 80 km / hr. Another freight train ,
Channel: Doubtnut
Date: 2020-01-03

A passenger train of length 60 m travels at a speed of 80 km / hr. Another freight train , the ratio of times taken by the train to completely cross the freight train when :(i) they are moving in direction , and (ii) in the opposite directions is :