SOLUTION: how many bit strings of seven lowercase letters start with a vowel, if letters cannot be repeated

SOLUTION: how many bit strings of seven lowercase letters start with a vowel, if letters cannot be repeated

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Question 463979: how many bit strings of seven lowercase letters start with a vowel, if letters cannot be repeated
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
26*25*24*23*22*21*20=3315312000 total bit strings.
3315312000 * 5/26 = 637560000 there are 5 vowels.
.
Ed
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