A train 120 meters long completely crosses a 480 meters long bridge in 55 seconds. What is the speed of the train is?	Choose the correct choice from the following answers:  A) 32  B) 545  C) 39  D) 40  E) 09

Rationale: s = ( 120 + 480 ) / 45 = 600 / 55 * 18 / 5 = 39 answer : c
Answer: C