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Mathematics, 07.03.2020 04:18 tilsendt
Say that a referral code is 2 letters (A-Z, no lowercases) followed by 4 digits (0-9), or it is 2 digits (0-9) followed by four letters (A-Z, no lowercases). Digits are not allowed to repeat but letters can repeat. How many referral codes can you make
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Say that a referral code is 2 letters (A-Z, no lowercases) followed by 4 digits (0-9), or it is 2 di...
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