4 kg ice at - 20°C is mixed with 4 kg water at 30°C. Then the final amount of water in the mixture would be?
(Given, Specific heat of ice = 0.5 cal/g°C,
Specific heat of water = 1 cal/g°C,
Latent heat of fusion of ice = 80 cal/g)
1
8 kg
2
3 kg
3
6 kg
4
5 kg