Question 43
A point $M$ is chosen on the side $AC$ of a triangle $ABC$ and a point $K$ is chosen on the line segment $BM$ so that $AM = \frac{1}{3}AC$ and $BK = \frac{1}{4}BM$. Let $N$ be the intersection of the line $AK$ and the side $BC$. What percentage of the area of the triangle $ABC$ is the area of the quadrilateral $MKNC$?