Two trains 100 meters and 120 meters long are running in the same direction with speeds of 72 km/hr; in how much time will the first train cross the second?

Arithmetic Aptitude

1)	Two trains 100 meters and 120 meters long are running in the same direction with speeds of 72 km/hr; in how much time will the first train cross the second?

A) 19 sec
B) 33 sec
C) 44 sec
D) None of These

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