Henry Ernest Dudeney/Puzzles and Curious Problems/57 - The Broken Clock Face/Historical Note
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Historical Note on Puzzles and Curious Problems by Henry Ernest Dudeney: $57$ - The Broken Clock Face
Martin Gardner points out, in his $1968$ repackaging 536 Puzzles & Curious Problems, that there are a total of $13$ possible solutions here.
They are all listed in his columns in Scientific American for May and June $1966$, reprinted in his $1975$ collection Mathematical Carnival.
He also notes that the solution given in the first edition of Puzzles and Curious Problems was inferior, requiring that the $\text {IX}$ be viewed upside down and interpreted as $\text {XI}$
Sources
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Answers: $49$. The Broken Clock Face
- 1975: Martin Gardner: Mathematical Carnival: $17$. Cooks and Quibble-Cooks