With out any halt a train travels a certain distance with an average speed of 49 km ph , and with halts it covers the same distance at an average speed of 28 kmph. When it is traveling with halts, how many minutes/per hour does the train halt on an average ?  Pick
A) 48 min.  B) 45min.  C) 15min.  D) 18min.  E) 19min.
With halt in 1 hour the train travels 60km   With out halt for traveling same distance it take 49/28 = 7/4 = 105 minutes   :. 45 minutes is the halting time per hour   ANSWER:45min.
<result>B</result>
With out any halt a train travels a certain distance with an average speed of 49 km ph , and with halts it covers the same distance at an average speed of 28 kmph. When it is traveling with halts, how many minutes/per hour does the train halt on an average ?