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Two postmen are to deliver 10 posts to 10 addresses. In how

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Manager
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Joined: 24 Jun 2003
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Two postmen are to deliver 10 posts to 10 addresses. In how [#permalink] New post 11 Aug 2003, 06:56
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Two postmen are to deliver 10 posts to 10 addresses. In how many ways could they share the work between themselves?
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 [#permalink] New post 11 Aug 2003, 09:06
The first letter could be delivered by either postman -- 2 ways
The second letter could be delivered by either postman -- 2 ways
............................................
The tenth letter could be delivered by either postman -- 2 ways

2^10=1024
  [#permalink] 11 Aug 2003, 09:06
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Two postmen are to deliver 10 posts to 10 addresses. In how

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