Answers

2016-07-19T09:17:58+08:00
The age of the father is 144.
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2016-07-19T10:14:28+08:00
Man=8(age of theson now)=square of son age now; sons age now is =s-1: 8(s-1)=s^2-1; 8s-8=s^2-1; s^2-8s-7; s-7)(s-1); s=7..will fit the condition man=8(6);=48yrs old
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