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. In a dinner party there are 10 Indians, 5 Americans and 5 EnglishaeIn how many ways can they.be arranged in a row so that all persons ofthe same nationality sit together ? |
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Answer» Taking all person of same nationality as one person, then we will have only three people.These three person can be arranged themselves in 3! Ways.8 Indians can be arranged themselves in 8! Way.4 American can be arranged themselves in 4! Ways.4 Englishman can be arranged themselves in 4! Ways.Hence, required number of ways = 3!*8!*4!*4! Ways. |
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