Without stoppages, a train travels certain distance with an average speed of 250 km/h, and with stoppages, it covers the same distance with an average speed of 125 km/h. How many minutes per hour the train stops ?  Choose the correct choice from the following answers.
A) 25 B) 30 C) 35 D) 40 E) 45
Due to stoppages, it covers 125 km less .   Time taken to cover 125 km = 125â„250h = 1â„2h   = 1â„2 Ã— 60 min = 30 min   Answer 30
<result>B</result>
Without stoppages, a train travels certain distance with an average speed of 250 km/h, and with stoppages, it covers the same distance with an average speed of 125 km/h. How many minutes per hour the train stops ?