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Dmitriy789 [7]
3 years ago
5

Fifty balls numbered 1 through 50 are mixed up in a barrel. How many balls must you draw from the barrel (without looking) to be

sure that you have two even-numbered balls?
Mathematics
1 answer:
ipn [44]3 years ago
8 0
If you draw only 25 balls, you could draw the 25 odd-numbered balls.  However, there will then be no odd-numbered balls left, so when you draw two more you will be guaranteed to get two even-numbered balls.  Thus, the minimum is 25+2=27 balls.
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