SAT Math Multiple Choice Practice Question 377: Answer and Explanation
3. A can of mixed nuts contains cashews, almonds, peanuts, and walnuts in the ratio of 2 to 4 to 5 to 7, respectively, by weight. What fraction of the mixture by weight is almonds?
Correct Answer: C
C The ratio of the nuts is a part-to-part-to-part-to-part ratio. Adding these numbers gives the total number of parts:. Since four of these parts are almonds, the fraction of the mixture that is almonds is 4/18, or 2/9.