Question

Mr. and Mrs. Smith have invited 9 of their friends and their spouses for a party at the Waikiki Beach Resort. They stand for a group photograph. If Mr. Smith never stands next to Mrs. Smith (as he says they are always together otherwise), how many ways the group can be arranged in a row for the photograph?

Answer 1

8 ways becoz 1 way is removed

Answer 2

yes and is 9 because they invite 9