A train length 110 metres 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?

Speed of train relative to man = train speed + main Speed

                                           =  66 + 6 = 66 km/hr

                                           =  (66  *  (5/18)) m/sec

                                           = 55/3 m/sec

Time = Distance/Speed

Time = (110/(55/3))

        = ((110 * 3)/55)

        = 6 sec