math
posted by Noah .
You have 60 red socks and 30 blue socks unpaired in a drawer. You can not see the socks, they are in a drawer and it is dark. What is the minimum number of socks that you have to pull out before you have a matching pair?

two, of course.
Now, if you want to be sure you have a matching pair, then 3. There are only two colors, so if you pull 3 socks, at least two of them must be the same color.
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