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Erica and Andrew are playing a game. Erica starts by selecting three digits a, b, and c, and then Andrew needs to select a digit x such that the six-digit number axbxcx is a multiple of \(6\). What is the sum of all possible values of  that would give Andrew exactly 3 choices of x?

 
 Jan 9, 2022
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The sum of all possible values of a + b + c is 36.

 
 Jan 9, 2022

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