Brainteaser #38- 9 Coins -

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There are 9 coins before you. One of
the coins is counterfeit and weighs
slightly less than the other 8. The
genuine coins all have the same weight.
There is a balance scale with a weighing
pan on each side.

With proper strategy, at most, how many
weighings are required to identify the
counterfeit coin?

See Answer

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