Предмет: Математика, автор: Аниум

Отец старше сына на 20 лет а сын моложе отца в пять раз сколько лет отцу и сколько лет сыну

Ответы

Автор ответа: 4324252525242

Сыну - x лет
5x=x+20
5x-x=20
4x=20
x=5
Сыну - 5 , отцу - 25

Автор ответа: Умницка1

Сколько сыну лет мы не знаем.
1)20:4=5.
2)20+5=25.
ответ сыну 5 лет а отцу 25

Автор ответа: Аниум

Спасибо

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