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#1 dawgsrule93


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Posted 26 March 2008 - 08:39 PM

11 cups are on a table, all of them are upside down. You must turn all of them right side up, inverting 3 at a time. How many moves will it take?
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#2 statman


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Posted 26 March 2008 - 08:50 PM

Spoiler for guess

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#3 EventHorizon


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Posted 26 March 2008 - 10:29 PM

Spoiler for guess

Yup statman is right.

Spoiler for explanation

Edited by EventHorizon, 26 March 2008 - 10:31 PM.

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