Consider permutations of the word farmer but exclude any permutation where the two Rs are adjacent. These permutations are listed in alphabetical order as they would appear in a dictionary what is the rank of the word farmer in this list?
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For some reason I'm not even able to make the words one by one
All I know is if this was a normal questions we would fix A and then do 5! And so on
Academic discussion and doubt solving for: Logarithms, Set Theory, Matrices & Determinants, Permutation & Combination, Probability, Binomial Theorem
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77?
yes, how?
got it thanks!