A train 165 metres 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) 9 sec  B) 6 sec  C) 7 sec  D) 10 sec  E) None
Solution   Speed of train relative to man =(60+6) km/hr= 66km/hr   =(66x5/18) m/sec =(55/3) m/sec   ∴ Time taken to pass the man = (165x3/55)sec = 9 sec   9 secnswer 9 sec
<result>A</result>
A train 165 metres 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 ?