You can put this solution on YOUR website! in how many ways can a sedan a coupe a sports car a station wagon and a van be parked in a row?
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1st in line : 4 ways
2nd in line : 3 ways
3rd in line : 2 ways
4th in line : 1 way
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Total ways = 4*3*2*1 = 4! = 24
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Cheers,
Stan H.