document.write( "Question 1129483: Claire’s three sons, from oldest to youngest, are Evan, Joel and Alex. The
\n" ); document.write( "difference between the ages of Evan and Joel is the same as the difference
\n" ); document.write( "between the ages of Joel and Alex. If the sum of the three ages is 39, how old is
\n" ); document.write( "Joel?
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Algebra.Com's Answer #746106 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "The equal age differences mean that Joel's age is the average of the three ages.

\n" ); document.write( "39/3 = 13

\n" ); document.write( "Joel is 13 years old.
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