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by vineeshp » Fri Jul 22, 2011 7:38 pm
S = G + 20 as given by Sarah is now 20 years older than George.

Now after one year also, Sarahs age will be 20 more than george. So was the case 8 years ago, right?

Sarahs age 8 years ago is G + 20 - 8 = G + 12.
Vineesh,
Just telling you what I know and think. I am not the expert. :)
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