Question

the length of a bridge which a train 130 meters long and travelling at 45 km/hr can cross in 30 seconds,is: ?​

Answer 1

Answer:

in 30 sec the train covered the distance

45000×30/3600 m

=4500/12m

=375 m

length of the train 130 m

so, length of the bridge (375-130) m

=245 m