Предмет: Математика, автор: ggulnarm

S5. Первый рабочий за 6 дней готовит 16 деталей , а второй за 12 дней 28 таких . За сколько дней они смогут изготовить 90 деталей, работая вместе ?​

Ответы

Автор ответа: au456
1

Второй рабочий за 6 дней изготовит 28/2 = 14 деталей

Вместе с первым они за 6 дней изготовят 14+16=30 деталей

а 30*3=90 деталей за 6*3 = 18 дней

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