A train 360 m long runs with a speed of 45 km/hr. What time will it take to pass a platform of 240 m long?	Options.
A) 38 sec	B) 35 sec	C) 44 sec	D) 48 sec	E) none of these

Rationale: speed = 45 km / hr = 45 ã — ( 5 / 18 ) m / s = 150 / 12 = 50 / 4 = 25 / 2 m / s total distance = length of the train + length of the platform = 360 + 240 = 600 meter time taken to cross the platform = 600 / ( 25 / 2 ) = 600 ã — 2 / 25 = 48 seconds answer : d
Answer: D