Henry Ernest Dudeney/Puzzles and Curious Problems/228 - The Ladder
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Puzzles and Curious Problems by Henry Ernest Dudeney: $228$
- The Ladder
- A ladder was fastened on end against a high wall of a building.
- It was unfastened and pulled out $4$ yards at the bottom.
- It was then found that the ladder had descended just one-fifth of the length of the ladder.
- What was the length of the ladder?
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Sources
- 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Geometrical Problems: Various Geometrical Puzzles: $228$. -- The Ladder
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Geometrical Problems: Solid Geometry Puzzles: $308$. The Ladder