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anonymous
 one year ago
In how many ways can 5 boys and 4 girls be seated on a bench so that the girls and the boys occupy alternate seats?
anonymous
 one year ago
In how many ways can 5 boys and 4 girls be seated on a bench so that the girls and the boys occupy alternate seats?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@ganeshie8 @Preetha @Australopithecus

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1First arrange the \(5\) boys in \(5!\) ways : dw:1434362511919:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1Next insert \(4\) girls in those gaps in \(4!\) ways dw:1434362643409:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1So the total possible ways are \(5!*4!\)
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