SOLUTION: You have an electronic safe, and the code is five digits. The first digit cannot be a 1, and the last digit is odd. How many different available codes are there?
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Question 897829: You have an electronic safe, and the code is five digits. The first digit cannot be a 1, and the last digit is odd. How many different available codes are there?
You can put this solution on YOUR website! First digit : 0-9 but not 1.
Second digit : 0-9
Third digit : 0-9
Fourth digit : 0-9
Fifth digit : 1,3,5,7,9
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