A new language uses only the letters A, B, C, D, and E. The letters A and E are called vowels, w

Name: A new language uses only the letters A, B, C, D, and E. The letters A and E are called vowels, while the letters B, C and D are called consonants. A sequence of letters is called a word if it does not include the same letter twice in a row, and it does not include two vowels in a row. How many words are there in this language that are 13 letters long and that begin with a consonant?
Uploaded: 2023-03-17T02:05:23-08:00
Duration: 3 min 35 s
Channel: Sri K
Description: A new language uses only the letters A, B, C, D, and E. The letters A and E are called vowels, while the letters B, C and D are called consonants. A sequence of letters is called a word if it does not include the same letter twice in a row, and it does not include two vowels in a row. How many words are there in this language that are 13 letters long and that begin with a consonant?

Question

Rashmi Sinha · Accepted Answer

1. Since the word must begin with a consonant, we have 3 choices for the first letter: B, C, or

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