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## 'Beads' printed from http://nrich.maths.org/

Three beads are threaded on a circular
wire and are coloured either red or blue.

Can you find all four different combinations?

You now repeat the following actions over and over again:

- between any two beads of the same colour put a red
bead
- between any two beads of different colours put a blue
bead
- then remove the original beads.

Describe what will happen to each of the combinations.

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