MathDB
Magical knights!

Source: 2021 Fall AMC10B P9

November 17, 2021
AMCAMC 10AMC 10 B

Problem Statement

The knights in a certain kingdom come in two colors. 27\frac{2}{7} of them are red, and the rest are blue. Furthermore, 16\frac{1}{6} of the knights are magical, and the fraction of red knights who are magical is 22 times the fraction of blue knights who are magical. What fraction of red knights are magical?
<spanclass=latexbold>(A)</span>29<spanclass=latexbold>(B)</span>313<spanclass=latexbold>(C)</span>727<spanclass=latexbold>(D)</span>27<spanclass=latexbold>(E)</span>13<span class='latex-bold'>(A) </span>\frac{2}{9}\qquad<span class='latex-bold'>(B) </span>\frac{3}{13}\qquad<span class='latex-bold'>(C) </span>\frac{7}{27}\qquad<span class='latex-bold'>(D) </span>\frac{2}{7}\qquad<span class='latex-bold'>(E) </span>\frac{1}{3}