A train 100 m long is running at the speed of 30 km/hr. Find the time taken by it to pass a man standing near the railway line.
Choose the correct choice from the following choices
A) 10 sec. B) 12 sec. C) 14 sec. D) 16 sec. E) None
Solution   Speed of the train	= (30 x 5/18)m/sec   = (25 / 3) m/sec.   Distance moved in passing   the standing man	= 100 m.   Required time taken	= 100 /( 25 / 3)   =(100 x 3 / 25) sec   = 12 sec.   Answer 12 sec.
<result>B</result>
A train 100 m long is running at the speed of 30 km/hr. Find the time taken by it to pass a man standing near the railway line.