The correct option is A 9 seconds
Speed=Distance÷Time
∴ Time=Distance÷Speed
Distance = Length of the train = 150 m
Speed = 60 km/hr
To convert speed to m/sec, multiply 60 by 5÷18
∴ Speed of the train
= 60×518 = 503 m/sec
Hence, Time taken by the train to cross the pole = 150÷503 = 9 seconds