Two trains each 190m in length each, are running on two parallel lines in opposite directions. If one goes at the speed of 65km/h while the other travels at 50km/h. how long will it take for them to pass each other completely.  Choose the correct choice from the following:
A) 10.7 sec  B) 2.7 sec  C) 11.9 sec  D) 12.7 sec  E) 25.7 sec

Rationale: "explanation : d = 190 m + 190 m = 380 m rs = 65 + 50 = 115 * 5 / 18 = 319 / 10 t = 380 * 10 / 319 = 11.9 sec answer : option c"
Answer: C