SOLUTION: If 6 times number of permutation of n items taken 3 at a time is equal to 7 times no of permutation ( n-1) item taken 3 at a time then n value is
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Question 973197: If 6 times number of permutation of n items taken 3 at a time is equal to 7 times no of permutation ( n-1) item taken 3 at a time then n value is Answer by Edwin McCravy(20054) (Show Source):
You can put this solution on YOUR website! If 6 times number of permutation of n items taken 3 at a time is equal to 7 times
no of permutation ( n-1) item taken 3 at a time then n value is?
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6∙(nP3) = 7∙[(n-1)P3]
Edwin
