A train 150 m long is running at 54 km/h. How long will it take to cross a pole?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 10 sec.
Train length = 150 m
Speed = 54 km/h
Convert speed into m/s: 54 × 5 / 18 = 15 m/s
To cross a pole, the train covers its own length only.
Using formula: Time = Speed / Distance
t = d / v = 150 / 15 = 10 seconds
So, the train will take 10 seconds to cross the pole.