Answer :
From the recipe, we can see that for every cup of chopped apple there would be a yield of 12 muffins, therefore the ratio is 12 muffins: 1 cup of chopped apple. If there is [tex]1 \frac{1}{8} [/tex], we just need to remember that [tex] \frac{12}{1} = \frac{x}{ 1\frac{1}{8} } [/tex], therefore the yield for the new amount of chopped apples would be, 13.5 muffins