A train length is 330 meter and it's speed is  57 km/hr. A man running opposite of train derection with a speed of 8 km/hr. how long it pass a man.

speed of the train relative to man =(57+8) kmph

                                                =65 * 5/18 m/sec

                                                =325/18 m/sec

Time taken by train to cross the man = (330 /(325 / 18)) m/sec

                                                      =(330 * 18 / 325)

                                                      =18.27 sec