Henry Ernest Dudeney/Puzzles and Curious Problems/70 - The Donkey Cart
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Puzzles and Curious Problems by Henry Ernest Dudeney: $70$
- The Donkey Cart
- Atkins, Brown and Cranby had to go an journey of $40$ miles.
- Atkins could walk $1$ mile an hour,
- Brown could walk $2$ miles an hour,
- and Cranby could go in his donkey-cart at $8$ miles an hour.
- Cranby drove Atkins a certain distance, and, dropping him to walk the remainder,
- drove back to meet Brown on the way and carried him to their destination,
- where they all arrived at the same time.
- How long did the journey take?
- Of course, each went at a uniform rate throughout.
Click here for solution
Also see
- Henry Ernest Dudeney/Modern Puzzles/37 - A Side-car Problem, exactly the same problem but with different numbers
Sources
- 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Arithmetical and Algebraical Problems: Locomotion and Speed Puzzles: $70$. -- The Donkey Cart
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Arithmetical and Algebraical Problems: Speed & Distance Puzzles: $84$. The Donkey Cart