document.write( "Question 875467: A man is four times as old as his son. If the sum of their ages is 40 years, how old is each now? \n" ); document.write( "
Algebra.Com's Answer #528193 by mareebsiddiqui(7)\"\" \"About 
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Son's age = x
\n" ); document.write( "Man's age = 4x
\n" ); document.write( "x + 4x = 40\r
\n" ); document.write( "\n" ); document.write( "So:\r
\n" ); document.write( "\n" ); document.write( "5x = 40
\n" ); document.write( "x = 40/5 = 8\r
\n" ); document.write( "\n" ); document.write( "Son's age = 8
\n" ); document.write( "Man's age = 4(8) = 32
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