Three grades of milk are 1 percent, 2 percent and 3 percent fat by volume. If x gallons of the 1% grade, y gallons of the 2% grade and z gallons of the 3% grade are mixed up and give a 1.5% grade, what is x in terms of y and z?
a. y + 3z
b. (y+z)/4
c. 2y + 3z
d. 3y + z
e. 3y + 4.5z
OA is A
a. y + 3z
b. (y+z)/4
c. 2y + 3z
d. 3y + z
e. 3y + 4.5z
OA is A
GMAX
