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: Silliness
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06-15-2013, 12:49 PM
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11926
pdurrant
The Grand Mouse 高貴的老鼠
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Join Date: Jul 2007
Location: Norfolk, England
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I seemed to have stumped everyone with this one.
How about if I tell you that's it's possible to take just
four
weights, and still be able to weigh anything (in whole kg) up to 20kg? And that the four weights themselves together weigh exactly 20kg?
pdurrant
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