How many seconds will a 650 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 48 km/hr?	Choose the most appropriate option
A) 25
B) 45
C) 54
D) 44
E) 48
Speed of train relative to man = 48- 3= 
<gadget id="calculator">48- 3</gadget>
<output>45</output>
45 km/hr.= 45 * 5/18 = 25/2 m/sec.   Time taken to pass the man = 650 * 2/25 = 54 sec.   Answer: 54
<result>C</result>
How many seconds will a 650 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 48 km/hr?