Correct Answer - Option 1 : 7.5 seconds
Given:
Speed of train = 132 kmph
Length of train = 110 meters
Length of platform = 165 meters
Formula used:
Speed = Distance/Time
Calculation:
To cross railway platform train has to travel distance equal to the sum of length of train and length of platform
Total distance = 165 + 110 = 275 meters
Speed in m/sec
⇒ 132 × (5/18) m/sec
Time = Distance/Speed
⇒ 275/(660/18)
⇒ (275 × 18)/660
⇒ 7.5 seconds
∴ Time taken by train to cross the platform is 7.5 seconds.
