Question

A train of length 150 meters took 8 seconds to cross a bridge of length 250 metres. Time taken by the train to cross a telephone post is :

• A. 5 seconds
• B. 8 seconds
• C. 3 seconds
• D. 2 seconds

Answer 1

Answer:

C. 3 seconds

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