Two squares share a vertex at the origin and have their sides along the x- and y-axis. Two vertices lie on the line satisfying x+2y=c. What is the proportion purple : yellow?

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## Solution

The proportion purple : yellow is 9 : 1.

## Poem

Below the line

Can be fine

Or sometimes

Between mad and fine

Between opposite and limit

There is a boundary line

Made for those who want to cross

They need beauty to survive

Below the line

They know there is no passion

For their transformation

And not to spoil their actions