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  • A man invites 10 friends to a party and places 5 at one table and 5 at another table, the tables being round. The number of ways in which he can arrange the friends?

A man invites 10 friends to a party and places 5 at one table and 5 at another table, the tables being round. The number of ways in which he can arrange the friends?

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Number;of;ways;selecting;5;out;of;10;is;_^10 extrmC_5\* and;arranging;them;in;circular;table;then;number;of;arrangement;of\*5;persons;in;circualr;table;is;(5-1)!\* herefore;required;number;of;ways=_^10 extrmC_5 imes (4!)^2

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Deependra Verma

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