Вопрос школьника по предмету Математика
Дробные числа. 6 класс.
2/3 от всех денег заплатили за пальто, а 160 рублей заплатили за ботинки.Это составляет 2/5 от того, что заплатили за пальто. Сколько всего потратили денег?
Ответ учителя по предмету Математика
160=2/5, значит, одна пятая равна (160/2)=80. Значит, цена пальто равна (80*5)=400 рублей.
400 — это две третьих от общего кол-ва денег.
Значит, (400/2*3)=600 рублей было всего.
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