Henry Ernest Dudeney/Puzzles and Curious Problems/221 - The Fly's Journey
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Puzzles and Curious Problems by Henry Ernest Dudeney: $221$
- The Fly's Journey
- A fly, starting from point $A$, can crawl around the four sides of the base of this cubical block in $4$ minutes.
- Can you say how long it will take to crawl from $A$ to the opposite corner $B$?
Click here for solution
Sources
- 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Geometrical Problems: Various Geometrical Puzzles: $221$. -- The Fly's Journey
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Geometrical Problems: Solid Geometry Puzzles: $319$. The Fly's Journey