Определите , делиться ли выражение на числа. Объясните почему. (25•x•y-10•y•z) на 5, y, z

из10кг                                    кол-во  кг                                                           всего муки

9кг                                              40кг                                                                      ?кг

9кг                                               60кг                                                                      ?кг

9кг                                                100кг                                                                      ?кг

40/10*9=36-из 40 кг

60/10*9=54из  60кг

100/10*9=90 из 100кг

из10кг                                    кол-во  кг                                                           всего муки

9кг                                              40кг                                                                      ?кг

9кг                                               60кг                                                                      ?кг

9кг                                                100кг                                                                      ?кг

40/10*9=36-из 40 кг

60/10*9=54из  60кг

100/10*9=90 из 100кг