Without stoppages, a train travels certain distance with an average speed of 200 km/h, and with stoppages, it covers the same distance with an average speed of 160 km/h. How many minutes per hour the train stops ?	Choose the correct choice from the following answers.
A) 8	B) 9	C) 10	D) 11	E) 12
Due to stoppages, it covers 40 km less .   Time taken to cover 40 km = 40â„200h = 1â„5h   = 1â„5 Ã— 60 min = 12 min   Answer 12
<result>E</result>
Without stoppages, a train travels certain distance with an average speed of 200 km/h, and with stoppages, it covers the same distance with an average speed of 160 km/h. How many minutes per hour the train stops ?