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by Juan Domínguez Montes
There are 12 coins, one is lighter or heavier than the others.
With only balance scales how do you find the different coin
with only 3 weighings?
If you are unsure of your answer you can request confirmation by
emailing me at the address shown here.
Please state which problem you need confirmation on clearly.
Please do not email me simply for answers, the enjoyment derived
from a puzzle is proportional to the time spent on it.
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