Cream costs twice as much as skim milk. A certain brand of milk is 1/3 cream and 2/3 skim milk. What fraction of the cost of this brand is due to the cream?	Select the correct option
A) 1/3 B) 1/2 C) 2/5 D) 3/5 E) 3/4
Let x be the cost of the skim milk in the mixture.   The cost of the cream is (1/2)*x*2 = x.   The total cost is x+x = 2x and the fraction due to the cream is x/2x = 1/2   The answer is 1/2.
<result>B</result>
Cream costs twice as much as skim milk. A certain brand of milk is 1/3 cream and 2/3 skim milk. What fraction of the cost of this brand is due to the cream?