A train running at the speed of 54 km/hr crosses a pole in 9 seconds. What is the length of the train?  Choose the correct choice from the following choices.
A) 140 B) 135 C) 150 D) 170 E) 160
Speed=(54x5/18)m/sec = 15 m/sec.   Length of the train = (Speed x Time).   Length of the train = (15 x 9)m = 135 m.   Answer is 135.
<result>B</result>
A train running at the speed of 54 km/hr crosses a pole in 9 seconds. What is the length of the train?