Solve Aptitude Q: 731+672 - Homework Statement

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Homework Statement



if 137 + 276=435, how much is 731+672=?
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Have you considered bases of arithemetic? Since there's no number higher than 7 the base is either 8 or 9 since we know base 10 is wrong. My guess is base 8. Your can check it yourself.
 
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