There are 9 balls and of these one is a bit heavier than the others. But all look equally big. How is it possible to identify this with the condition that one can use the pair of scales only twice?
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There are 9 balls and of these one is a bit heavier than the others. But all look equally big. How is it possible to identify this with the condition that one can use the pair of scales only twice?
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[URL="http://www.geekinterview.com/talk/734-can-you-suggest-finding.html"]http://www.geekinterview.com/talk/734-can-you-suggest-finding.html[/URL]
-- James