SOLUTION: To make a two letter code the first letter is chosen from the set of vowels and the second letter is chosen from the 26 letters of the alphabet.How many of this codes, (a)end with

Algebra ->  Permutations -> SOLUTION: To make a two letter code the first letter is chosen from the set of vowels and the second letter is chosen from the 26 letters of the alphabet.How many of this codes, (a)end with       Log On


   



Question 588548: To make a two letter code the first letter is chosen from the set of vowels and the second letter is chosen from the 26 letters of the alphabet.How many of this codes, (a)end with D. (b)start with an E and end with a D. (c)start with an E or end with a D. (d)start and end with the same letter.
Answer by sudhanshu_kmr(1152) About Me  (Show Source):
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a) 5
b) 1
c)26 + 5 - 1 = 30
d)5