Noontime, a solution with a constant temperature of 0°C, a hot iron rod with a temperature of 1000°C is placed. Twenty after the hour (twenty minutes), the temperature of the rod is 850 °C. At what...

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Extracted text: Noontime, a solution with a constant temperature of 0°C, a hot iron rod with a temperature of 1000°C is placed. Twenty after the hour (twenty minutes), the temperature of the rod is 850 °C. At what time will it take for the rod to reach a temperature of 26°C?