An object with initial temperature 150°C is placed outside, where the temperature is 35°C. Its temperatures at 12:15 and 12:20

Question

An object with initial temperature 150°C is placed outside, where the temperature is 35°C. Its temperatures at 12:15 and 12:20 are 120°C and 90°C, respectively.
(a) At what time was the object placed outside?
(b) When will its temperature be 40°C?

Kunduz · Accepted Answer

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