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How many different ways can four people:andy,betty,cindy, and Doug, sits in a row at the opera if Andy and betty must sit together?

How many different ways can four people:andy,betty,cindy, and Doug, sits in a row at the opera if Andy and betty must sit together?
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2 votes
how many different ways can four people:andy,betty,cindy, and Doug, sits in a row at the opera if Andy and betty must sit together?

User Jloriente
by
9.0k points

2 Answers

3 votes
they can sit may ways but 12s the answer.
User Jesper Juhl
by
8.4k points
7 votes
They can sit together in 12 different configurations:

ABCD
CDAB
CABD
DABC
BACD
CDBA
CBAD
DBAC
ABDC
DCAB
BADC
DCBA
User Arun Abraham
by
8.6k points
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