How many different 5-digit even numbers can be formed using the numerals 1, 2, 3, 4 and 5 if the numerals can be repeated
+23252 An even number must end with an even digit (2 or 4); however, all the other digits can be either even or odd.
5 choices for the first digit
5 choices for the second digit
5 choices for the third digit
5 choices for the fourth digit
2 choices for the last digit
answer - 5 x 5 x 5 x 5 x 2 =
