SOLUTION: 1.There is a group of 6 girls who are going to be seated in a row in 6 chairs for a photograph 2 of these girls do not want to sit together. In how many ways can the photograph can

Algebra ->  Probability-and-statistics -> SOLUTION: 1.There is a group of 6 girls who are going to be seated in a row in 6 chairs for a photograph 2 of these girls do not want to sit together. In how many ways can the photograph can      Log On


   



Question 388597: 1.There is a group of 6 girls who are going to be seated in a row in 6 chairs for a photograph 2 of these girls do not want to sit together. In how many ways can the photograph can be taken.
Answer by sudhanshu_kmr(1152) About Me  (Show Source):
You can put this solution on YOUR website!

Total no. of ways to sit 6 girls (without restriction) = 6P6 = 6!

no. of ways to sits 6 girls when 2 are together = 5P5 * 2! = 5! * 2!



now, no. of ways when 2 are not together = 6! - 5!*2! = 480