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How many four-character license plates consist of a consonant, followed by a vowel, followed by a consonant, and then a vowel? (For this problem, consider Y a vowel.)

 Oct 14, 2020
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20 consonants    6 vowels

 

20 * 6 * 20 * 6 = ..........  combos

 
 Oct 14, 2020

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