A train running at the speed of 90 km/hr crosses a pole in 5 seconds. Find the length of the train. Choose the correct answer:
A) 150 meter
B) 145 meter
C) 140 meter
D) 125 meter
E) none of these

Rationale: "explanation : speed = 90 * ( 5 / 18 ) m / sec = 25 m / sec length of train ( distance ) = speed * time = 25 * 5 = 125 meter option d"
Answer: D