Question

A train of length 150 m took 8 sec to cross a bridge of length 250m. Time taken by the train to cross a telephone post is

Answer 1

Answer:

Time taken by the train to cross a telephone post is 3 sec

Step-by-step explanation:

A train of length 150 m took 8 sec to cross a bridge of length 250m.

Train Length = 150 m

Bridge length = 250 m

Distance covered by train to cross bridge = Train Length + Bridge length

= 150 + 250

= 400m

Time taken = 8 sec

Speed of train = Distance /Time = 400/8 = 50 m/s

Distance to be covered to cross telephone post = Train Length

= 150 m

Time required = 150/50  = 3 sec

Time taken by the train to cross a telephone post is 3 sec