A train 300 m long, running with a speed of 54 km/hr will pass a tree in? Choose the correct choice from the following choices
A) 17 sec	B) 16 sec	C) 20 sec	D) 14 sec	E) 12 sec

Rationale: "speed = 54 * 5 / 18 = 15 m / sec time taken = 300 * 1 / 15 = 20 sec answer : c"
Answer: C