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Chicken and the Egg – It was the Egg

Posted by Karl Sharman on January 28, 2011 – 1:11 pm

A farmer knows that 20 of his hens, housed in 3 coops, will hatch 30 eggs in 18 days. How long will it take 30 hens, housed in 4 coops to hatch the same number of eggs?

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9 Responds so far- Add one»

  1. 1. Ashwajit Bhosle Said:

    3o hens 30 eggs in 8 days.

  2. 2. DP Said:

    12 Days.
    I’m not sure the relevance of the number of coops, but here is my proof:
    20 hens make 150% (30 eggs) in 18 days. Meaning 30 hens could make 100% (30 eggs) in [100/150]*18 = 12 days.

  3. 3. Curtis Said:

    Perhaps if it takes 18 days for an egg to hatch, it doesn’t matter how many chickens, eggs or coops there are…… it will still take 18 days for the eggs to hatch (as long as there are enough chickens to sit on them!)

  4. 4. Prerana Said:

    18 days because it doesn’t matter how many coups the hens are placed in. It only matter how many hens there are.

  5. 5. Karl Sharman Said:

    Curtis and Prerana score here. Even cold hard maths cannot speed up a hatching egg!

  6. 6. Eketahuna Said:

    Can I get some of those hens/eggs please Karl ? My hens waste time/money and take 21 days to hatch their eggs :(

    Mmmm, imagining the extra hatchings I can get per year with that flock ! :-)

  7. 7. Eketahuna Said:

    Also, I agree, it HAS to have been the Egg !

  8. 8. Serik Said:

    12 days

  9. 9. Karl Sharman Said:

    Eketahuna – don’t you be counting your chickens before they’ve hatched…

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