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Question

A party is arranged of 18 persons who sit along two sides of a long table with 9 chairs on each side. Four men wish to sit on one particular side and three on the other particular side. In how many ways can they be seated -

  1. fraction numerator 11   factorial   9   factorial over denominator 5   factorial   6   factorial end fraction  
  2. fraction numerator 11   factorial   9   factorial   9   factorial over denominator 5   factorial   6   factorial end fraction  
  3. 11! 4! 3!  
  4. None of these  

The correct answer is: fraction numerator 11   factorial   9   factorial   9   factorial over denominator 5   factorial   6   factorial end fraction

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