document.write( "Question 887589: A boy is now one-third as old as his father
\n" ); document.write( "Twelve years hence he will be half as old as
\n" ); document.write( "his father. Then the present age of the boy is
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Algebra.Com's Answer #536740 by clettol(1)\"\" \"About 
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3x =age of the father
\n" ); document.write( "12 = age of the boy
\n" ); document.write( "x+12=age of the boy
\n" ); document.write( "3x+12=2(X+12)
\n" ); document.write( "3X+12=2X+24\r
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\n" ); document.write( "\n" ); document.write( "X=12
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