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

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Manager
Joined: 24 Jun 2003
Posts: 91
Location: Moscow
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Two postmen are to deliver 10 posts to 10 addresses. In how [#permalink]  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?
SVP
Joined: 03 Feb 2003
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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
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