How many seconds will a 100 m long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?  Choose the correct choice from the following answers:
A) 6
B) 30
C) 8
D) 12
E) 1
Speed of train relative to man = 63 - 3= 
<gadget id="calculator">63 - 3</gadget>
<output>60</output>
60 km/hr.= 60 * 5/18 = 50/3 m/sec.   Time taken to pass the man = 100 * 3/50= 
<gadget id="calculator">100 * 3/50</gadget>
<output>6</output>
6 sec.   6nswer: Option 6
<result>A</result>
How many seconds will a 100 m long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?