Предмет: Математика, автор: Аноним

Коля подарил Саше игру:коробка,внутри-коробка поменьше,внутри ещё одна коробка и нутри ещё одна коробка.В самой большой коробке лежит 9 кружков,а во всех остальных-по 4 кружочка в каждой.Как переложить кружки так,чтобы в каждй коробке столо по четном числу пар кружков и ещё один?Коля сказал что есть несколько способов.

Ответы

Автор ответа: skaras1996

коробки всего четыре.
9 ( в большой)+4+4+4=21 (всего кружочков)
21-1 (в одну коробку)=20 нужно четно разделить на три коробки:
8 - в одну 6 -еще в одну 6-еще в одну
12 4 4
14 3 3
16 2 2
Все, так как большая коробка только одна

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