Question 1160273
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Three research departments have 7,10,8 {{{highlight(cross(and))}}} members, respectively. Each department is to select a delegate and an alternate 
to represent the department at a conference. In how many ways can this be done?
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The solution and the answer are in one line


    It can be done in  (7*6) * (10*9) * (8*7)  = 211680 ways.
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Watch my factors (!)


The formula is self-explanatory (!)