Hello,
i don`t know how it`s possible, u can elect only 15 numbers from random gived full 100, the difference between two is dies 15 numbers and can be divided to 7? I post the german version also, its the origin. I must solve this task until tomorrow. Thanks
[FONT="]German version: Kann man aus 100 beliebig gegebenen ganzen Zahlen stets 15 Zahlen so auswahlen,• da die Di erenz zweier beliebiger dieser 15 Zahlen durch 7 teilbar ist? (Beweis[/FONT]
i don`t know how it`s possible, u can elect only 15 numbers from random gived full 100, the difference between two is dies 15 numbers and can be divided to 7? I post the german version also, its the origin. I must solve this task until tomorrow. Thanks
[FONT="]German version: Kann man aus 100 beliebig gegebenen ganzen Zahlen stets 15 Zahlen so auswahlen,• da die Di erenz zweier beliebiger dieser 15 Zahlen durch 7 teilbar ist? (Beweis[/FONT]