1.

A train passes over a 400m long bridge. If the speed of the traIN IS 30M/S and the train takes 20 s to cross the brigde , then the length of the train is

Answer»

400 m
600 m
800 m
200 m

Solution :LET l be the LENGTH of the train.
`:. (400+l)/(30)`=20
or l = `20xx30-400`
=200M


Discussion

No Comment Found