Henry Ernest Dudeney/Puzzles and Curious Problems/267 - A Motor-Car Tour
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Puzzles and Curious Problems by Henry Ernest Dudeney: $267$
- A Motor-Car Tour
- A man started in a motor-car from town $A$, and wished to make a complete tour of these roads,
- going along every one of them once, and once only.
- How many different routes are there from which he can select?
- Every route must end at the town $A$, from which you start,
- and you must go straight from town to town -- never turning off at crossroads.
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Sources
- 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Unicursal and Route Problems: $267$. -- A Motor-Car Tour
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Combinatorial & Topological Problems: Route & Network Puzzles: $425$. A Car Tour