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Question

The number of ways in which 5 boys and 5 girls can be arranged in a row so that no two girls are together is
  1. 10!    
  2. 5!6!        


Solution

The correct option is B 5!6!        
5 boys can be arranged in 5!
Out of the 6 gaps 5 girls can be arranged in 6P5 ways
5! 6P5

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