With out any halt a train travels a certain distance with an average speed of 75 km ph , and with halts it covers the same distance at an average speed of 60 kmph. When it is traveling with halts, how many
minutes/per hour does the train halt on an average ?  Choose the most appropriate option.
A) 48 min B) 12min. C) 15min. D) 18min. E) 20min
With halt in 1 hour the train travels 60km   With out halt for traveling same distance it take 60/75 = 4/5 = 48 minutes   :. 12 minutes is the halting time per hour   Answer: 12min.
<result>B</result>
With out any halt a train travels a certain distance with an average speed of 75 km ph , and with halts it covers the same distance at an average speed of 60 kmph. When it is traveling with halts, how many
minutes/per hour does the train halt on an average ?