Hi there,
Could you help me to resolve this PS step by step. I'm lost.
Three grades of milk are 1%, 2%, 3% 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 to give x+y+z gallons of 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
I thinks that the answser is A
Could you help me to resolve this PS step by step. I'm lost.
Three grades of milk are 1%, 2%, 3% 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 to give x+y+z gallons of 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
I thinks that the answser is A
