A train 360 metre long runs with a speed of 45 km/hr. What time will it take to pass a platform of 140 metre long?	Select the correct option
A) 30  B) 35  C) 40  D) 45  E) 50

Rationale: speed = 45 km / hr = 45 × 5 / 18 = 25 / 2 m / s distance travelled = ( speed x time ) time = ( distance travelled / speed ) distance travelled = length of the train + length of the platform = 360 + 140 = 500 m = 500 / 25 / 2 = 40 sec answer : c
Answer: C