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A train is made up of a locomotive, 7 different cars, and a caboose. If the locomotive must be first, and the caboose must be last, how many different ways can the train be ordered?
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please help(:
it is easy..... total 7 cars can be arranged by 7! i.e. 5040
it is 7factorial
how do you get 5040?
7 *6*5*4*3*2*1
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oh i see. thank you! that makes sense now
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