Question 574770: one year ago, ram's age was 8 times his son's age.Now his age is equal to square of his son's age .find their present age. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! one year ago, ram's age was 8 times his son's age.Now his age is equal to square of his son's age .find their present age.
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Equations:
r-1 = 8(s-1)
r = s^2
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Substitute for "r" and solve for "s":
s^2-1 = 8s-8
s^2-8s+7 = 0
Factor:
(s-7)(s-1) = 0
Acceptable solution:
s = 7 yrs (son's age now)
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r = s^2 = 49 (father's age now)
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Cheers,
Stan H.
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