1.

500 kg of milk testing 6.5% fat to be standardized to 3.1% fat using skim milk containing 0.05% fat. Therefore, the quantity of skim milk required to be added to 500 kg whole milk will be?(a) 557.38 kg(b) 440 kg(c) 850 kg(d) 500 kgThe question was posed to me in a national level competition.I'd like to ask this question from Standardization in division Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Correct choice is (a) 557.38 kg

The BEST explanation: THUS mixing of 3.05 kg of 6.5% fat milk with 3.40 kg of the SKIM milk will YIELD 6.45 kg of milk containing the DESIRED fat level i.e. 3.1%. Therefore, the quantity of skim milk required to be added to 500 kg whole milk will be (3.4 x 500)/3.05=3.05. Accordingly, 557.38 kg of 0.05% skim milk mixed with 500 kg of 6.5% fat whole milk will yield 1057.38 kg of milk having 3.1% fat.


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