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Eight weights

500 bytes added, 16:28, 13 August 2010
Created page with 'Here is a puzzle I saw on someones problem of the week site. They had it phrased using batteries. Here is another version. ==Puzzle== You come across eight stones. You know ...'
Here is a puzzle I saw on someones problem of the week site. They had it phrased using batteries. Here is another version.

==Puzzle==

You come across eight stones. You know that 4 of the stones weigh the same, while the other four all weigh different amounts. How many times might you have to use a balance scale before you can know for sure that the next two stones you will weigh will be equal?

==See also==

*[[Six weights]]
*[[Nine weights]]
*[[Twelve weights]]

[[Category: Optimization]]
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