Предмет: Математика, автор: irafofulit

Ірина та Ольга пішли по гриби.. Разом вони знайшли 70 грибів.
5/9 грибів, які знайшла Ірина, це лисички, а 2/17 грибів, які знайшла Ольга, це маслюки. Скільки грибів знайшла Ірина?

Ответы

Автор ответа: ksjuschafil

Число грибов, найденных Ириной должно быть кратно 9, а число грибов, собранных Ольгой -17. Всего же должно быть 70 грибов. Такому условию соответствует Ирина= 36, Ольга=34

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