In what time will a train 120 meters long completely pass an electric pole, if it travels at a speed of 60kmph.  Choose the correct choice from the following answers:
A) 6.18 B) 5.18 C) 4.18 D) 4.18 E) 7.18
Sol.   Speed = [ 60x5/18] m/sec =16.7 m / sec.   Time taken = (120/16.7)sec = 7.18 sec.   Answer 7.18
<result>E</result>
In what time will a train 120 meters long completely pass an electric pole, if it travels at a speed of 60kmph.