Предмет: Алгебра, автор: inpok

Папе и дедушке вместе 111 лет. Сколько лет каждому, если папа в 2раза молоде дедешки?

Ответы

Автор ответа: гюйс

0

х - лет папе
2х лет - дедушке
Вместе 111 лет.

х+2х=111
3х=111
х=111:3
х=37(лет) - папе
37*2=74(года) - дедушке

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