A train 50 m long is running with a speed of 68 kmph. In what time will it pass a man who is running at 8 kmph in the same direction in which the train is going?  Choose the correct answer
A) 3 sec. B) 7 sec. C) 9 sec. D) 11 sec. E) None
Solution   Speed of the train relative to man	=( 68 - 8 )= 
<gadget id="calculator">( 68 - 8 )</gadget>
<output>60</output>
60 Kmph= 60 x 5 / 18   =50/3 m/sec.   Time taken by it to cover 50 m at (50 /3)m/sec	= (112 - 50)kmph   = (50 x 3/50)sec   = 3 sec.   3 sec.nswer 3 sec.
<result>A</result>
A train 50 m long is running with a speed of 68 kmph. In what time will it pass a man who is running at 8 kmph in the same direction in which the train is going?