A train 385 meters long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?
Choose the correct choice:
A) 15 B) 61 C) 21 D) 14 E) 12
Speed of train relative to man = (60 + 6) km/hr = 66 km/hr   [66 * 5/18] m/sec = [55/3] m/sec.   Time taken to pass the man = [385 * 3/55= 
<gadget id="calculator">385 * 3/55</gadget>
<output>21</output>
21 sec   Answer: 21
<result>C</result>
A train 385 meters long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?