How many gallons of milk that is 10 percent butter-fat must be added to 8 gallons of milk that is 25 percent butterfat to obtain milk that is 20 percent butterfat?	Select the correct option
A) 4 B) 12 C) 14 D) 16 E) 28
Equate the fat:   0.1x + 0.25*8 = 0.2(x + 8) --&gt; x = 4.   4nswer: 4.
<result>A</result>
How many gallons of milk that is 10 percent butter-fat must be added to 8 gallons of milk that is 25 percent butterfat to obtain milk that is 20 percent butterfat?