Question

A train, 100 m long, is running at a speed of 54 km/hr. If it croses a bridge in 12 seconds , find the length of the bridge.

Answer 1

A train 360 metres long is running with a speed of 54 km per hour. In what time will it pass a Platform of length 240 meters. 


A) 50 secs.

B) 40 secs.

C) 60 ses.

D) 35 secs.


Correct Answer:

B) 40 secs.


Description for Correct answer:
The speed of the train = 54 kmph = 54×518=15mts./sec54×518=15mts./sec

Sum of the length of the train and the platform = 360+240 = 600 mts.

Time taken to pass the platform = Time taken to cover 600 mts. 

at the speed of 15 m/sec.= 6001560015 = 40 seconds