document.write( "Question 978254: .
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Algebra.Com's Answer #599779 by Alan3354(69443)\"\" \"About 
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A father is 45 years old and his son is 15. In how many years will be the father be twice as old as his son?
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\n" ); document.write( "The difference is 30 years.
\n" ); document.write( "--> when 30 & 60
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