How much time does a train 150 metres long running at 54 km/hr take to pass a pole?	Choose the correct choice from the following
A) 7.9 s B) 2.5 s C) 7.5 s D) 7.6 s E) 10 s

Rationale: "explanation : 54 km / hr = 54 * 5 / 18 = 15 m / s speed = distance / time ; v = d / t 15 = 150 / t t = 10 s answer : e"
Answer: E