SOLUTION: How many strings of eight English lowercase letters are there a) that contain no vowels, if letters can be repeated? b) that contain no vowels, if no letters can be repeated? c)

SOLUTION: How many strings of eight English lowercase letters are there a) that contain no vowels, if letters can be repeated? b) that contain no vowels, if no letters can be repeated? c)

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Question 856276: How many strings of eight English lowercase letters are there
a) that contain no vowels, if letters can be repeated?
b) that contain no vowels, if no letters can be repeated?
c) that start with a vowel, if letters can be repeated?

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
a, e, i, o, u,y: IF including y as a vowel, there are 20 consonants
a)
b)
c) Assuming vowels can be included for all 8 letters
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