Stylinson4ever Stylinson4ever

01-10-2015
Mathematics

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The sum of three different positive integers is 12. Show that one of them must be greater than 4

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porsche911 porsche911

01-10-2015

Average of these numbers are 12/3=4. So If we choose them same, they will be 4, 4 and 4. But They must different. This situation causes one of them should 5 (lowest greater number).

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