Chris mixed 4 pounds of raisins with 4 pounds of nuts. If a pound of nuts costs 3 times as much as a pound of raisins, then the total cost of the raisins was what fraction of the total cost of the mixture?  Choose one:
A) 1/7
B) 1/5
C) 1/4
D) 1/3
E) 3/7
1 lbs of raisin = $1   4 lbs of raisin = $4   1 lbs of nuts = $3   4 lbs of nuts = $12   Total value of mixture = 12+4= 
<gadget id="calculator">12+4</gadget>
<output>16</output>
16   Fraction of the value of raisin= 4/16 = 1/4   Ans:1/4
<result>C</result>
Chris mixed 4 pounds of raisins with 4 pounds of nuts. If a pound of nuts costs 3 times as much as a pound of raisins, then the total cost of the raisins was what fraction of the total cost of the mixture?