hard · GMAT Quant
An automated logistics system generates 5-character serial codes using a set of 5 distinct vowels A, E, I, O, U and 21 distinct consonants. To ensure scannability, the first character must be a vowel, the last character must be a consonant, and no character can be repeated within a single code.
How many such distinct serial codes can be generated?
- 262,080
- 1,275,120
- 1,560,000
- 25,000
- 120,000
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