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Permutation and Combination

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Permutation and Combination  [#permalink]

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New post 03 Dec 2017, 21:48
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You are to make a sitting arrangement for 10 school visitor.

a. How many possible sitting arrangements can you make it all?
b. How many possible sitting arrangements can you make if two visitors must sit next to each other?

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Re: Permutation and Combination  [#permalink]

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New post 03 Dec 2017, 22:24
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A) Possible arrangements In circular seating arrangement is 9! And in linear arrangement is 10!
B) circular arrangement - 8!*2!
Linear arrangement - 9!*2!

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Re: Permutation and Combination  [#permalink]

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New post 04 Dec 2017, 07:01
Anica123 wrote:
You are to make a sitting arrangement for 10 school visitor.

a. How many possible sitting arrangements can you make it all?
b. How many possible sitting arrangements can you make if two visitors must sit next to each other?


Please read carefully and follow our RULES OF POSTING. Thank you.

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This discussion does not meet community quality standards. It has been retired.


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Re: Permutation and Combination &nbs [#permalink] 04 Dec 2017, 07:01
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