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OpenStudy (anonymous):
8 people are boarding a plane 2 have tickets for first class and board before everyone. In how many ways can these people board the aircraft? Please Explain!!!
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OpenStudy (anonymous):
all the 8 people? \[2\times 1\times 6\times 5\times 4\times 3\times 2\times 1\]
OpenStudy (anonymous):
yeah but wouldnt it be different if the first two have to board 1st?
OpenStudy (anonymous):
that is why i put the \(2\times 1\) in front. otherwise it would be 8!
OpenStudy (anonymous):
oh ok thanks!
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