<p>A fruit salad is made from pineapples, pears, and peaches mixed in the ratio of 2 to 3 to 5, respectively, by weight. What fraction of the mixture by weight is pineapple? </p>
<p>a. 1/5
b. 3/10
c. 2/5
d. 1/2
e. 2/3 </p>
<p>Can somebody please explain how to do this. I feel like this should be easy but I'm not getting the right answer so I must be doing something wrong.</p>