permutation/combination

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by chidcguy » Sun Jun 01, 2008 9:02 am
Is the OA 48?

Two people must sit next to each other. Now put them together as one. That makes the total number of people to arrange is 4. We can arrange 4 people in 4! ways. 2 of them who are side by side all the time can be arranged in 2 ways. So that makes it 4! X 2 = 48 ways

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by kath_the_great4 » Sun Jun 01, 2008 9:37 am
Yes the OA is 48. Thanks you really simplified things!