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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
- between any two beads of different colours put a blue
- then remove the original beads.
Describe what will happen to each of the combinations.
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