In what time will a train 100 m long cross an electric pole, it its speed be 216 km/hr? Choose the correct choice from the following
A) 2.5 sec B) 2.9 sec C) 1.7 sec D) 7.5 sec E) 2.4 sec

Rationale: "speed = 215 * 5 / 18 = 60 m / sec time taken = 100 / 60 = 1.7 sec . answer : c"
Answer: C