document.write( "Question 163757This question is from textbook Intermediate Al greba
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document.write( ": Diaphantos, a famous mathematician spent 1/6 of his life as child, 1/12 as adolescent, 1/7 as bachelor. Five years after he was maried , he had son who died before 4 years before his father at half his father's final age. How long did Diaphantos live? \n" );
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Algebra.Com's Answer #120632 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! This problem came up a few weeks ago, this is what I submitted then \n" ); document.write( ": \n" ); document.write( "Diophantus passed one-sixth of his life in childhood, one-twelfth in youth, one-seventh more as a bachelor. Five years after his marriage, a son was born who died four years before his father, at half his father's [final] age. How old was Diophantus when he died. \n" ); document.write( ": \n" ); document.write( "Let x = his final age \n" ); document.write( ": \n" ); document.write( "a lengthy but simple equation \n" ); document.write( "Final age = child + youth + bach + marriage + son's age + 4 \n" ); document.write( "x = \n" ); document.write( ": \n" ); document.write( "Common denominator of 12*7 = 84 \n" ); document.write( "x = \n" ); document.write( ": \n" ); document.write( "x = \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "x = 84 is his final age \n" ); document.write( ": \n" ); document.write( "Check: \n" ); document.write( "14 + 7 + 12 + 5 + 42 + 4 = 84 \n" ); document.write( " |