How long does a train 150 m long traveling at 50 kmph takes to cross a bridge of 250m in length? Options:	A) 28.8 sec	B) 16.8 sec	C) 15.2 sec	D) 25.4 sec	E) 16.2 sec

Rationale: "d = 150 + 250 = 400 m s = 50 * 5 / 18 = 125 / 9 t = 400 * 125 / 9 = 28.8 sec answer : a"
Answer: A