Correct Answer - Option 1 : 10 sec
Given:
Length of the train is 200 m and the length of the bridge is 250 m. Speed of the train is 45 m/s
Concept Used:
To cover the bridge = To cover the sum of the length of the bridge and train
Time = Distance/speed
Calculation:
Speed of the train is 45 m/s
To cross the bridge the train, have to cover a distance of (200 + 250) = 450 m
Required time = 450/45
⇒ 10 second
∴ Time taken by the train to cross a bridge of length 250 m is 10 second.
