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19-12-2016
Mathematics

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Lily forgot the security code for her apartment building. the code is two different numbers followed by a letter. how many different possible codes are ther?

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McVoRTeX McVoRTeX

19-12-2016

Assuming the keypad has all 26 letters and the numbers 1-9 there are 2106 possible codes

9x9x26=2106

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