Excluding stoppages, the speed of a train is 48 kmph and including stoppages it is 36 kmph. Of how many minutes does the train stop per hour?	Choose the correct choice from the following choices:
A) 16  B) 17  C) 15  D) 18  E) 12
T = 12/48 * 60= 
<gadget id="calculator">12/48 * 60</gadget>
<output>15</output>
15   Answer: 15
<result>C</result>
Excluding stoppages, the speed of a train is 48 kmph and including stoppages it is 36 kmph. Of how many minutes does the train stop per hour?