Five boys and five girls form a line with the boys and girls alternating. Find the number of ways of making the line when all girls are together.

Explanation

To solve the problem of arranging 5 boys and 5 girls in a line such that all girls are together and the arrangement alternates between boys and girls, we can follow these steps:

### Step 1: Treat the group of girls as a single unit
Since all girls must be together, we can treat them as one single unit or block. This means we now have 6 units to arrange: 5 boys + 1 block of girls.

**Hint:** When a group of items must stay together, consider them as a single unit.

### Step 2: Arrange the boys and the block of girls
...