perplexus.info :: Weights and Scales : Two false coins

Two false coins (Posted on 2005-03-25)

You have ten coins, but two are fake, and weigh a little less. How many times do you have to use a two arm scale, in order to pick out the two fakes?

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Existential doubt

| Comment 5 of 11 |

Must fake coins weigh the same? ;-)

Posted by Federico Kereki on 2005-03-27 22:29:30

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