A train passes through a telegraph post in 9 seconds moving with a speed of 54 km per hour. The length of the train is	Choose the correct choice from the following choices:
A) 135 metres  B) 145 metres  C) 125 metres  D) 155 metres  E) None of these
We know from the formula Distance = Speed x time   Thus, Distance = 54 x 5/18 x 9   or, Distance =135 meters.   135 metresNSWER:135 metres
<result>A</result>
A train passes through a telegraph post in 9 seconds moving with a speed of 54 km per hour. The length of the train is