00:01
In the question we have given that 15 people are in a party.
00:10
Are in a party.
00:12
If every group, if every group of three people, if every group of three people, at least two from them at least do, do not know each other.
00:30
Do not know each other.
00:33
Then we have to tell what is the greatest possible number of pair what is the greatest possible number of pair this is we have to answer now note that if we're making the group of three people if we making the group of three people it means that sorry it means that we have five groups it means that we have five groups.
01:20
We have the five group.
01:21
Now in all the five groups, in all five groups, two people do not know, do not know each other.
01:39
Do not know each other.
01:41
So therefore, there are five ways.
01:48
Now this is a first wish...