In the given figure, ^@ ABCD ^@ is a square. A line segment ^@DX^@ cuts the side ^@BC^@ at ^@X^@ and the diagonal ^@AC^@ at ^@O^@ such that ^@\angle COD = 118^\circ^@ and ^@\angle OXC = x^\circ^@. Find the value of ^@x^@.
A showroom stocks tiles in combination of 3 colors - blue, red, and yellow. 60% of the tiles have blue color. 35% of tiles have red color, and 45% of tiles have yellow color. No tile has all 3 colors, but some tiles can have 2 colors. What percentage of tiles have only one color?