A body cools in 7 minute from 60^@C to 4...

A body cools in 7 minute from `60^@C` to `40^@C`. What time does it take to cool from `40^@C` to `28^@C` if the surrounding temperature is `10^@C`? [Assume that Newton's law of cooling is valid.]

A

3.5 minute

B

14 minute

C

7 minute

D

10 minute

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