Henry Ernest Dudeney/Modern Puzzles/164 - Those Russian Cyclists Again
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Modern Puzzles by Henry Ernest Dudeney: $164$
- Those Russian Cyclists Again
- Here is another little experience of the two Russian Army motor-cyclists from the last puzzle.
- In the section from a map given in the diagram we are shown three long straight roads, forming a right-angled triangle.
- The General asked the two men how far it was from $A$ to $B$.
- Pyotr replied that all he knew was that riding round the triangle, from $A$ to $B$,
- Whereupon the General made a very simple calculation in his head and declared that the distance from $A$ to $B$ must be ...
- Can the reader discover so easily how far it was?
Click here for solution
Sources
- 1926: Henry Ernest Dudeney: Modern Puzzles ... (previous) ... (next): Unicursal and Route Problems: $164$. -- Those Russian Cyclists Again
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Geometrical Problems: Triangle, Square & Other Polygon Puzzles: $282$. Those Russian Cyclists Again