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Олимпиада

1-4 класс

51 кг муки рассыпают сначала в пакеты по 3 кг, а затем в пакеты по 5 кг. Какое наибольшее количество пакетов по 3 кг могли использовать , если всего использовали не более 15 пакетов? Помогите пожалуйста

Юля 16 сент. 2018 г., 20:43:55 (5 лет назад)
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