SOLUTION: In how many ways can 7 people be seated in a row of 9 chairs if Jane and Joe must sit next to each other?

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Question 870966: In how many ways can 7 people be seated in a row of 9 chairs if Jane and Joe must sit next to each other?
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
We must arrange 6 "things", (5 single people and 1 couple).

There are 6! ways when Jane sits on Joe's left.
There are 6! more ways when Jane sits on Joe's right.

Answer 6!*2 = 720*2 = 1440 ways.

Edwin