If you have three friends, how many ways can you introduce them to someone?
1
3
6
or an infinite number

6

Step-by-step explanation:

Given : The number of friends : 3

If we introduce one by one , then the number of ways to introduce them is given by permutations .

We can choose first friend in 3 ways , second in 2 and the third in one way.

Then , the number of ways of introducing 3 friends one at a time is given by :-

Therefore, the  number of ways of introducing 3 friends  = 6