arithmetic - a train 220 m long is running with a speed of 59 kmph in what time will it pass a man who is running at 7 kmph in the direction opposite to that in which the train is going - skillgun

Speed of the train relative to man = (59 + 7) kmph
= [66 * 5/18] m/sec = [55/3] m/sec.
Time taken by the train to cross the man
= Time taken by it to cover 220m at [55/3] m/sec
= [220 * 3/55] sec = 12 sec.