A train 500 m long, running with a speed of 180 km/hr will pass a tree in?
Choose the correct choice from the following
A) 17 sec	B) 16 sec	C) 18 sec	D) 10 sec	E) 12 sec

Rationale: speed = 180 * 5 / 18 = 50 m / sec time taken = 500 * 1 / 50 = 10 sec answer : d
Answer: D