SOLUTION: A dairy man wishes to prepare cream containing 5% butterfat. How much cream of 25% butterfat must be added to 50 kilos of cream approximately containing 4% butterfat?

Question 825965: A dairy man wishes to prepare cream containing 5% butterfat. How much cream of 25% butterfat must be added to 50 kilos of cream approximately containing 4% butterfat?
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
One quantity known, the other quantity unknown, call it z.

(fat)/(blend)=5%

Solve for z.
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