Tanyas grandfather was 8 times older to her 16 years ago. He would be three times of her age 8 years from now. Eight years ago what was ratio of Tanyas age to her grandfather?

Submitted by: Administrator
at -16 the ratio is 8
at -8 the ratio is ?
at 0 the ratio is ?
at +8 the ratio is 3

so the ratio went down from 8 to 3 (5times) in 3 period of 8 year.
i.e. every 8 year is goes down by 5/3

so after one period of 8 years it was 24/3 - 5/3 = 19/3 or 6.33

so 8 years ago he was 6.33 years older than her.
Submitted by: Administrator

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