If a dairyman has 300 pounds of milk testing 3% butterfat, how many pounds of skimmed milk (with no butterfat) must he remove to have milk testing 3.6% butterfat?
Question : If a dairyman has 300 pounds of milk testing 3% butterfat, how many pounds of skimmed milk (with no butterfat) must he remove to have milk testing 3.6% butterfat?
Solution:
Given that 300 ponds of milk is testing 3 % of milk
It means;
3% of fats = 300 ponds of milk
or
1% of fats = 100 ponds of milk
Now let x% of fat be added to present value of fats so that it becomes 3.6% of fats
i-e
x+3=3.6
this gives x=0.6% of fats
but 1% of fats =100 ponds of milk
so, 0.6% of fats = 0.6×100=60 ponds of milk
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