Question 973745
Two years ago, two cats named Tony and Tiny, had 15 years of life together. Today, Tony is 13 years old. In how many years will Tiny be 9 years old?
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2 yrs ago:
let x=tony's age
15-x=tiny's age
..
at present:
x+2=tony's age=13
x=11
15-x+2=6=tiny's age
..
In how many years will Tiny be 9 years old? 3