SOLUTION: Andy was at a party and knew that 3 of the guests were born on the same day of the week and in the same month of the year. He also knew that if one of the three guests left the par
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Question 1069024: Andy was at a party and knew that 3 of the guests were born on the same day of the week and in the same month of the year. He also knew that if one of the three guests left the party (including himself), this would no longer be true. What is the maximum number of guests (including Andy) were at the party? Answer by ikleyn(52778) (Show Source):
The answer is: any number >= 3.
The condition does not restrict the total number of guests.
And the condition DOESN'T say "if any of the guests left the party (including himself), this would no longer be true"
The condition DOESN'T say it.