A train 110 m long is running with a speed of 40 km/hr. In what time will it pass a man who is running at 5 km/hr in the direction opposite to that in which the train is going?
Choose the correct answer.
A) 5
B) 6
C) 7.5
D) 8.8
E) 9

Rationale: "speed of train relative to man = 40 + 5 = 45 km / hr . = 45 * 5 / 18 = 25 / 2 m / sec . time taken to pass the men = 110 * 2 / 25 = 8.8 sec . answer : option d"
Answer: D