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A body takes 8 min to cool from 60^@ C t...

A body takes 8 min to cool from `60^@ C` to `50^@C`. If the temperature of sorrunding is `30^@C`, then temperature of body after next 20 min. will be

A

`36.67^@C`

B

`42.85^@C`

C

`30^@C`

D

`32.50^@C`

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