The temperature of a body falls from \( 40^{\circ} \mathrm{C} \) to \( 36^{\circ} \mathrm{C} \) ...

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The temperature of a body falls from \( 40^{\circ} \mathrm{C} \) to \( 36^{\circ} \mathrm{C} \) in \( 5 \mathrm{~min} \) when placed in a surrounding of constant temperature \( 16^{\circ} \mathrm{C} \). Find the time taken for the temperature of the body to become \( 32^{\circ} \mathrm{C} \).
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