1 in a group of 30 people must at least 3 have been born in

1) in a group of 30 people must at least 3 have been born in same month? jusitify your answer.

2) in a group of 30 people must at least 4 have been born in same month jusify answer.

Solution

It is not necessary that in a group of 30 people must at least 3 have been born in the same month, it is becaue it may be possible also that not a single person is borned in that month. So given statement is not justified.

This is the answer of question 3)