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WINSTONCH [101]
3 years ago
9

English has $6$ letters that can be vowels. This includes Y, which can be either a consonant or a vowel; for this problem, we'll

consider Y a vowel.
The other $20$ English letters are always consonants.


How many two-letter "words" can we make from these letters if we are required to use at least one vowel? (We aren't limited to words that have an actual meaning in English. Thus, for this problem, we'll include nonsense "words" like QO, XY, and UZ.)
Mathematics
1 answer:
m_a_m_a [10]3 years ago
3 0
This question is asking 20P6,because the smaller number is always at the end.So just do 20 times 19 times 18 times 17 times 16 times 15.The answer will be probably wrong because I'm dumb but it might work
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