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In how many ways can 4 boys and 3 girls be seated at a round
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13 Dec 2018, 04:03
13 Dec 2018, 04:03
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Question Stats:
53% (00:23) correct
46% (00:50) wrong based on 15 sessions
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Re: In how many ways can 4 boys and 3 girls be seated at a round
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13 Dec 2018, 04:06
13 Dec 2018, 04:06
This is the explanation: There are a total of 7 people to be seated around the round table. It is simply (7−1)!
or 6! or 720. The fact that they are boys or girls does not matter.
Can someone please explain why it is not 7! ?
or 6! or 720. The fact that they are boys or girls does not matter.
Can someone please explain why it is not 7! ?
Re: In how many ways can 4 boys and 3 girls be seated at a round
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13 Dec 2018, 07:03
13 Dec 2018, 07:03
1
Expert Reply
it is a simple rule. it is this way
\(R=\frac{N!}{N} = (n-1)!\)
page 113 circular arrangements
Regards
\(R=\frac{N!}{N} = (n-1)!\)
Attachment:
page 113 circular arrangements
Regards
