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How many different ways can seven students be seated in a row of seven seats if there must be exactly two people between Alex and Betsy, and exactly two people between Betsy and Cass?

 May 6, 2021
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Anchor  Betsy  in  any  seat

Then  there  are   two ways  to  seat  Alex  and Cass

And  the  number of  ways to seat the other4 people = 4! =  24

 

So.....the toal arrangements  =   2 *  24   =  48

 

 

cool cool cool

 May 6, 2021

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