SOLUTION: How many different ways can 4 people: Andy, Betty, Cindy, and Doug, sit in a row at the opera if Andy and Betty must sit together. I think the answer is 12.

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Question 402736: How many different ways can 4 people: Andy, Betty, Cindy, and Doug, sit in a row at the opera if Andy and Betty must sit together. I think the answer is 12.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How many different ways can 4 people: Andy, Betty, Cindy, and Doug, sit in a row at the opera if Andy and Betty must sit together. I think the answer is 12.
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A/B act like one person.
So there are 3! ways to arrange the "3" people
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A/B can be arrange in 2! = 2 ways.
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Total arrangements: 3!*2 = 6*2 = 12
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You are correct.
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Cheers,
Stan H.