3. Задача 17 (часть 1) | Математика ЕГЭ
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![Где рубль? Секрет знаменитой арифметической задачки-парадокса [№355]](https://sun9-48.userapi.com/ItJ-XNH7crKcFWHGeZQKiY04m8b63P7I0P-Heg/KXw-1WBiDQA.jpg)
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