Hi guys, I just can't crack this one:
Three grades of milk are 1%, 2% and 3% fat by volume. If x gallons of the 1% grade, y gallons of the 2% grade and z gllaons of the 3% grade are mixed to give x+y+z gallons of 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
THANK YOU!!!
btw - A) is the right answer...
source: CAT1 from mba.com
Three grades of milk are 1%, 2% and 3% fat by volume. If x gallons of the 1% grade, y gallons of the 2% grade and z gllaons of the 3% grade are mixed to give x+y+z gallons of 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
THANK YOU!!!
btw - A) is the right answer...
source: CAT1 from mba.com
