A train is 100 meter long and is running at the speed of 30 km per hour. Find the time it will take to pass a man standing at a crossing.
Choose the correct choice from the following answers:	A) 10 seconds	B) 12 seconds	C) 14 seconds	D) 16 seconds	E) 18 seconds
Explanation:   As we need to get answer in seconds, so never forget to convert speed into meter per second.   Speed = 30 km/hr = 30* 5/18 m/sec   = 25/3 m/sec   Distance = length of train = 100 meter   Required time =   Distance/Speed=100 /25/3   =100∗3/25=12sec   Option 12 seconds
<result>B</result>
A train is 100 meter long and is running at the speed of 30 km per hour. Find the time it will take to pass a man standing at a crossing.