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* 5 men, 4 girls, not two girls stand together, and then how many ways line can be formed?
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this was a bit harder than i thought. lets try this: the girls have to occupy 6 places before in the middle or at the end of the 5 boys there are \(_6P_4=360\) ways for them to do this
then we can arrange the 5 boys in \(5!=120\) different ways
i get a total of 480, but i would not bet any money on it. ok maybe $5
We"'ll add or multiply the permutations??
usually one multiplies, but i believe in this case we are adding because these are disjoint independent events
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hmm now you got me thinking...
no i am wrong i would go with multiplying
now i get 43200 just curious, do you know the answer to this?
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