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Outline Mathematics
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A peasant woman came to a market to sell some eggs. A first buyer took half her eggs plus 1/2 an egg. The same happened with the remaining eggs: a second buyer buyer took half her eggs plus 1/2 an egg. A third only bought what was left over: 1 egg. How many eggs were there initially? |
Copyright © 1996-2010 Alexander Bogomolny
Solution
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A peasant woman came to a market to sell some eggs. A first buyer took half her eggs plus 1/2 an egg. The same happened with the remaining eggs: a second buyer buyer took half her eggs plus 1/2 an egg. A third only bought what was left over: 1 egg. How many eggs were there initially? |
(In the applet below, click on the underlined omitted expressions. See what happens.)
References
- Ya. I. Perelman, Fun With Maths and Physics, Mir Publishers, 1988
Copyright © 1996-2010 Alexander Bogomolny
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