100-meter long train A and 150-meter long train B are moving towards each other, at 54 km/h and 36 km/h respectively. If a person in standing still in train A, how long will it take him to pass train B if the distance between him and the train B is 150 meters?
A. 15 seconds
B. 12 seconds
C. 10 seconds
D. 6 seconds
E. 5 seconds
A. 15 seconds
B. 12 seconds
C. 10 seconds
D. 6 seconds
E. 5 seconds