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In a surrounding medium of temperature 1...

In a surrounding medium of temperature `10^(@)"C"`, a body takes 7 min for a fall of temperature from `60^(@)"C to 40"^(@)"C"`. In what time the temperature of the body will fall from `40^(@)"C to 28"^(@)"C"`

A

7 min

B

11 min

C

14 min

D

21 min

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