Coles Spencer
04/26/2023 · Elementary School
Bir xil ko'rinishdagi 9 ta tanga orasida bitta soxta tanga bor. Uning vazni haqiqiylaridan biroz yengilroq. Agar qadoqtoshsiz faqat pallali tarozidan foydalanishga ruxsat berilsa, bu tangani 2 marta tortishda qanday aniqlash mumkin?
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Разделите 9 монет на три группы по 3 монеты. Положите две группы на весы. Если весы уравновешены, поддельная монета в третьей группе. В противном случае, поддельная монета в легкой группе. Затем взвешивайте по две монеты из оставшейся группы, чтобы определить поддельную.
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