The temperature of a body falls from 50^...

The temperature of a body falls from `50^(@)C` to `40^(@)C` in 10 minutes. If the temperature of the surroundings is `20^(@)C` Then temperature of the body after another 10 minutes will be

`36.6^(@)C`

`33.3^(@)C`

`35^(@)C`

`30^(@)C`

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