Difference between revisions of "Eight weights"
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Here is a puzzle I saw on someones problem of the week site. They had it phrased using batteries. Here is another version. | Here is a puzzle I saw on someones problem of the week site. They had it phrased using batteries. Here is another version. | ||
Current revision as of 06:51, 24 November 2010
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?
