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A bowl filled with very hot soup cools from 98°C to 86°C in 2 minutes when the room temperature is 22°C.

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A bowl filled with very hot soup cools from 98°C to 86°C in 2 minutes when the room temperature is 22°C. How long it will take to cool from 75°C to 69°C ? 

(1) 2 minutes 

(2) 1.4 minutes 

(3) 0.5 minute 

(4) 1 minute

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(2) 1.4 minutes

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