How long does a train 110 m long traveling at 60 kmph takes to cross a bridge of 170 m in length?
Choose one:
A) 16.8	B) 17.8	C) 15.9	D) 13.2	E) 12.4

Rationale: "d = 110 + 170 = 280 m s = 60 * 5 / 18 = 50 / 3 t = 280 * 3 / 50 = 16.8 sec answer a"
Answer: A