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Milk containing 3.7% fat and 12.8% total solids is to be evaporated to produce a product...

Milk containing 3.7% fat and 12.8% total solids is to be evaporated to produce a product containing 7.9% fat. What are 1) the mass of the product from 100 kg of milk, and 2) the total solids concentration in the final product, assuming there are no losses during the process?

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