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Discrete Math
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A rumor is spread as follows. The originator calls two people.Each of these people phones three friends,each of whom in turn calls five associates. If no one receives more than one call, and no one calls the originator, how many people now know the rumor? How many phone calls were made?
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|dw:1405913754594:dw|
so the originator called two people ^^
and `each` of them calls `three` more people
|dw:1405913870602:dw|
keep going, construct next level...
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@myininaya this was awnserd 2 months ago i think its time to close it dont you? >-<
i guess you dont agree o-o
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