Given: A train is travelling with a speed of 48 kmph The speed of man travelling in the opposite direction = 6 kmph The length of the train = 390m Formula Used: Distance = Speed × Time Calculation: Speed of the train = 48 kmph Speed of the man = 6 kmph Since, they travel in opposite direction Relative speed = Speed of train + Speed of man ⇒ 48+6=54 kmph=54×185​=15 m/s ⇒ Length of the train = 390 m ∴ Time taken by train to pass the man =Relative speedLength of the train​=15390​=26 s