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OpenStudy (anonymous):
A certain class has 6 girls and 5 boys. Four of these students are to line up in the front of the room, with two girls on either end and two boys in between. How many such arrangements are possible?
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ganeshie8 (ganeshie8):
|dw:1346452865018:dw|
ganeshie8 (ganeshie8):
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ganeshie8 (ganeshie8):
two girls on ends can be chosen from 6 girls in ways : 6*5
ganeshie8 (ganeshie8):
okay ?
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