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zalisa [80]
3 years ago
7

How large must a group of people be in order to guarentee that there are at least two people in the group whose birthdays fall i

n the same month
Mathematics
1 answer:
vovikov84 [41]3 years ago
7 0

Answer:

13

Step-by-step explanation:

This problem is an example of pigeonhole principle which states that If n+ 1 objects are placed into n boxes, then some box contains at least 2 objects.

Here no. of months in a year are boxes n = 12.

Therefore number of objects( people) = n+1= 13.

Then,at least two people  in the group whose birthdays fall in the same month.

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