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Solution of problem N3468 probability theory
3468. At the exam, the student is offered 25 tickets, each ticket has 3 questions. Of the 75 questions included in the tickets, the student knows 60. What is the probability that a ticket taken by a student will contain only one unknown question?
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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Discount for regular customers! If the total of your purchases from the seller
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exceeds: