In what time will a train 150 metres long cross an electric pole, if its speed be 122 km/hr?  Choose the correct choice from the following answers
A) 2.42  B) 6.42  C) 5.42  D) 4.42  E) 3.42
Solution   Speed	= (122 x 5 /18) m/sec   = 33.88m / sec   Time taken	= (150 /33.88) sec   = 4.42 sec.   Answer 4.42
<result>D</result>
In what time will a train 150 metres long cross an electric pole, if its speed be 122 km/hr?