How many patterns can you make with 2 digits, followed by a letter,followed by a digit, if your pattern cannot start with 0?
Question
Solution 1
Sure, let's break it down:
The first digit: Since the pattern cannot start with 0, we have 9 choices (1-9) for the first digit.
The second digit: This can be any digit from 0-9, so we have 10 choices.
The letter: Assuming we're using the English alphabet, we have 26 choices (A-Z).
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