A train 125 m long pass a telegraph pole in 5 seconds. Find the speed of the train
Select the correct option.
A) 90 km/hr
B) 68.4 km/hr
C) 72 km/hr
D) 79.2 km/hr
E) None
Sol.   Speed = [125/5] m/sec = [25 * 18/5] km/hr = 90 km/hr.   90 km/hrnswer 90 km/hr
<result>A</result>
A train 125 m long pass a telegraph pole in 5 seconds. Find the speed of the train