Question

Find the number of combinations for choosing two people from six. 180 360 30 15

Answer 1

15

Explanation:

There is a special function for this kind of problem it is the choose function and this problem asks

6 choose 2

the way to do this is

`(6*5)/(2!)`

The way to think about this is imagine two slots

The first slot has 6 options to choose from so we write

6

The second slot has five options as the one person has already been chosen

6 5

6*5=30

divide by two for the repetitions

and we have 15