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Mathematics 19 Online
OpenStudy (anonymous):

how many people do you need to gather to be sure that at least 2 of them have birthdays in the same month

OpenStudy (anonymous):

Depends on the month.

OpenStudy (anonymous):

But the answer is the number of days in whichever month plus one.

OpenStudy (anonymous):

True...

OpenStudy (anonymous):

Oh wait...I misread your question...

OpenStudy (anonymous):

It's 13.

OpenStudy (anonymous):

.... OOOOH I see what you did :D

OpenStudy (anonymous):

its 13 for sure

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