Предмет: Математика, автор: leradomg

Среди четырех людей нет 3 с одинаковым имении или одинаковым очеством , или с одинаковой фамилией, но у каждых 2 совпадает или имя или очество или Фамилия . Может ли такое быть

Ответы

Автор ответа: marusyakrasavitsa

Ответ: Нет, так как из трёх людей 2 обязательно будут с одинаковым именем, фамилией или отчеством.
Я такое задание в олимпиаде делала))

Автор ответа: TidyCat

Да, между 3-мя людьми нет ничего общего, но 4-й может иметь общее с каким нибудь человеком из этих трёх.

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