Find the speed of the train if it is 160 meters long and crossed a platform of 160 meters long in 16 seconds

Question: Find the speed of the train if it is 160 meters long and crossed a platform of 160 meters long in 16 seconds.

Solution: Total Distance = 160 + 160 = 320m

            Time = 16 s

            The speed of the train = ${320}/{16}$ = 20m/s = 20x ${18}/{5}$                                                                                            = 72km/h