SOLUTION: How many three-letter "words" can be made from the 9 letters FGHIJKLMN if repetition of letters:
(a) Is allowed?
Your answer is :729
(b) Is not allowed?
Your answer is : 5
Algebra ->
Permutations
-> SOLUTION: How many three-letter "words" can be made from the 9 letters FGHIJKLMN if repetition of letters:
(a) Is allowed?
Your answer is :729
(b) Is not allowed?
Your answer is : 5
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Question 726817: How many three-letter "words" can be made from the 9 letters FGHIJKLMN if repetition of letters:
(a) Is allowed?
Your answer is :729
(b) Is not allowed?
Your answer is : 504 Answer by checkley79(3341) (Show Source):
(