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How many different four-letter strings can be formed from the letters A, B, C, D, E (repeats allowed) if the first letter must be a vowel and the last letter must be a consonant…

How many different four-letter strings can be formed from the letters A, B, C, D, E (repeats allowed) if the first letter must be a vowel and the last letter must be a consonant…
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How many different four-letter strings can be formed from the letters A, B, C, D, E (repeats allowed) if the first letter must be a vowel and the last letter must be a consonant?

User Igor Semin
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8.4k points

2 Answers

6 votes
150 letters can be formed
User Ojas Mohril
by
8.7k points
3 votes
150 four-letter strings can be formed.
User Xavier Nodet
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8.5k points
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