Excluding stoppages, the speed of a train is 45 kmph and including stoppages it is 33 kmph. Of how many minutes does the train stop per hour? Choose the correct choice from the following answers:
A) 73	B) 83	C) 16	D) 83	E) 28

Rationale: "explanation : t = 12 / 45 * 60 = 16 answer : option c"
Answer: C