Old McDonald has 9 pigs. How can he build 4 pens and place and odd number of pigs in each pen?

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  1. Sorry, the only way I could imagine it being done is to leave one pig out of the pens. Is your stated information correct?

    1 + 1 + 1 + 6 = 9
    1 + 1 + 3 + 4 = 9

    Sorry I can't be of more help.

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  2. Thanks but that is exactly how the question is stated.

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  3. Build 3 pens with 3 pigs in each then a fourth pen around the 3 pens.
    Job done

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