Mathematics, 27.09.2019 15:30 magicalunicorns47
There are 5 boys and 4 girls in my class. all of them are distinguishable. in how many ways can they be seated in a row of 9 chairs such that at least 3 girls are all next to each other?
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There are 5 boys and 4 girls in my class. all of them are distinguishable. in how many ways can they...
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