A 250 m long train is running at a speed of 55 Km/hr. It crossed a platform of length 300 m in ?  Select the correct option.
A) 41.1 sec B) 20.2 sec C) 36 sec D) 50.4 sec E) none of the above
Speed = 55 Km/hr   (to convert km/hr in to M/s)   = 55 x 5/18 M/s   Distance = 250 m + 300 m ( If questions is about train crossing a post you need to consider only the length of Train, )   = 550 m   Time = Distance / Speed   = 550 x 18 / (5 x 55)   = 36 sec   Ans is :36 sec
<result>C</result>
A 250 m long train is running at a speed of 55 Km/hr. It crossed a platform of length 300 m in ?