Answers

2014-10-05T16:11:25+05:30
Let the presnt age of so be x.
father's age one yr ago= 8(x-1).
now his age = x^2
x^2 -1=8(x-1)
x^2=8x-7
x^2-8x+7=0
(x-7)(x-1)
x=7
Son's age now is 7
nd father's age is =7*7=49
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2014-10-05T16:51:36+05:30
Father's age =f             son's age=s
f-1=8(s-1)⇒f=8s-7
f=s²
putting (i) here
8s-7=s²
⇒s²-8s+7=0
⇒(s-7)(s-1)
so s=7 or s=1
⇒f=49 or f=1
since f=1 and s=1 in not possible.
The correct answer is son's age=7 and father's age=49
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