2kg ice at -20"^(@)C is mixed with 5kg w...

`2kg` ice at `-20"^(@)C` is mixed with `5kg` water at `20"^(@)C`. Then final amount of water in the mixture will be: [specific heat of ice `=0.5 cal//gm "^(@)C`, Specific heat of water `=1 cal//gm"^(@)C`, Latent heat of fusion of ice `= 80 cal//gm]`

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6 kg

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3 kg

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