# How would you use permutations to find the arrangements possible if a line has 4 girls and 4 boys alternating boy girl boy girl?

##### 1 Answer

Jun 22, 2016

In fact we are making two lines -- boys and girls, and then intertwine them.

#### Explanation:

Line of 4 boys:

Line of 4 girls: also

Combination of the two:

If it doesn't matter whether the first is a boy or a girl, we'll have to double that to