Question

Luca, Jenalla, Rite, Betty, Tom five people standing side to side in a row. If Rite and Betty must be adjacent and Rite has to be on the right of Betty, how many different arrangements are there?

Answer 1

The number of different arrangements that are there is 72.

Permutation and combination

If there are 5 people standing with 2 people staying adjacent to each other, hence we can take the 2 people as 1 to have a total of 4.

Hence the number of ways they can be arranged if two people are together is 4! * 2

• 4! * 2 = 4 * 3 * 3 * 2
• 4! * 2 = 72 ways

Hence the number of different arrangements that are there is 72.

Learn more on permutation here; https://brainly.com/question/12468032