Question

How many 3-letter "words" can be formed from the standard 26-letter alphabet, if the first letter must be a vowel (A, E, I, O, or U)? (We aren't necessarily talking about English words; something like EQX is perfectly valid here.)

Answer 1

3380

Explanation:

There are five choices for the first letter, and 26 choices each for the middle and last letters.

So,

5*26*26=3380