In what time will a train 175 m long cross an electric pole, it its speed be 144 km/hr?  Pick.
A) 2.58 sec  B) 2.91 sec  C) 4.37 sec  D) 2.9 sec  E) 1.8 sec

Rationale: "speed = 144 * 5 / 18 = 40 m / sec time taken = 175 / 40 = 4.37 sec . answer : c"
Answer: C