How many license plates consist of 2 letters followed by 2 digits, if one of the digits must be odd and the other must be even?
Question:
How many license plates consist of 2 letters followed by 2 digits, if one of the digits must be odd and the other must be even?
Answer:
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How many license plates consist of 2 letters followed by 2 digits, if one of the digits must be odd and the other must be even?
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