A 250 m long train is running at a speed of 55 Km/hr. It crossed a platform of length 520 m in?
Choose the correct choice from the following:
A) 30.4 sec B) 40.4 sec C) 60.4 sec D) 50.4 sec E) 80.4 sec
50.4 sec   50.4 sec   Speed = 55 Km/hr   (to convert km/hr in to M/s)   = 55 x 5/18 M/s   50.4 secistance = 250 m + 520 m ( If questions is about train crossing a post you need to consider only the length of Train, )   = 770 m   Time = 50.4 secistance / Speed   = 770 x 18 / (5 x 55)   = 50.4 sec
<result>D</result>
A 250 m long train is running at a speed of 55 Km/hr. It crossed a platform of length 520 m in?