[Test.6]
About all we know of Diophantus' personal life is contained in the following summary of an epitaph given in the Greek Anthology :
  "Diophantus passed1/6 of his life in childhood, 1/12 in youth, and 7/1 more as a bachelor. Five years after his marriage was born a son who died 4 years before his father, at 2/1 his father's [final] age," How old was Diophantus when he died?