With out any halt a train travels a certain distance with an average speed of 55 km ph , and with halts it covers the same distance at an average speed of 40 kmph. When it is traveling with halts, how many minutes/per hour does the train halt on an average ?
Pick one:
A) 48 min.  B) 6min.  C) 15min.  D) 18min.  E) 19min.
With halt in 1 hour the train travels 60km   With out halt for traveling same distance it take 55/50 = 11/10 = 66 minutes   :. 6 minutes is the halting time per hour   ANSWER:6min.
<result>B</result>
With out any halt a train travels a certain distance with an average speed of 55 km ph , and with halts it covers the same distance at an average speed of 40 kmph. When it is traveling with halts, how many minutes/per hour does the train halt on an average ?