asyam6242 asyam6242
  • 01-01-2018
  • Mathematics
contestada

In how many ways can these students form n groups of three people each if each group is to contain a sophomore, a junior, and a senior?

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Аноним Аноним
  • 01-01-2018
I think this is the number of combinations in n students taking 3 at a time

This is defines as:
   n!
----------
3! (n-3)!
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