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Year 11 (2025) Maths Extension 1 Rates of Change

Growth And Decay

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Question 1
11771

A thermometer recording \(2^\circ C\) is brought into a room, the temperature of which is set at \(22^\circ C\). After 5 minutes it registers \(10^\circ C\). How long will it take to reach \(20^\circ C\)?

22.6 min

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