Solution

(related to Problem: The Costermonger's Puzzle)

Bill must have paid $8$s. per hundred for his oranges — that is, $125$ for $10$s. At $8$s. $4$d. per hundred, he would only have received $120$ oranges for $10$s. This exactly agrees with Bill's statement.


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References

Project Gutenberg

  1. Dudeney, H. E.: "Amusements in Mathematics", The Authors' Club, 1917

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