How many seconds will a 800 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?	Pick
A) 11 B) 30 C) 99 D) 48 E) 61
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 = 800 * 3/50= 
<gadget id="calculator">800 * 3/50</gadget>
<output>48</output>
48 sec.   Answer: 48
<result>D</result>
How many seconds will a 800 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?