Excluding stoppages, the speed of a train is 55 kmph and including stoppages it is 30 kmph. Of how many minutes does the train stop per hour?  Choose the correct choice from the following:
A) 82 B) 27 C) 12 D) 82 E) 18
Explanation:   T = 25/55 * 60 = 27   Answer: Option 27
<result>B</result>
Excluding stoppages, the speed of a train is 55 kmph and including stoppages it is 30 kmph. Of how many minutes does the train stop per hour?