DAY 64

Comment

The pattern can be made by continually repeating a small section.
Choose such a section, and determine what fraction of the section is blue.

Answer

3/8 of the floor is painted blue.

Readers' methods

Kath Frend, Wilton:
The pattern can be made by laying rectangles like this one side by side.
3 of the 8 squares are blue.

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