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3 years ago

6

The english alphabet contains 21 consonants and five vowels. how many strings of six letters, each of which is drawn from the en

glish alphabet, contain (a) exactly one vowel?

1 answer:

Mamont248 [21]3 years ago

6 0

Number of strings = $21^5(5)$ = 21 x 21 x 21 x 21 x 21 x 5 = 20 420 505

Answer: 20 420 505

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