SOLUTION: Nono is Five years older than his twin sisters. The sum of the ages of the twins three years ago is equal to his age five years from now. How old will they be 12 years from now?

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Question 664272: Nono is Five years older than his twin sisters. The sum of the ages of the twins three years ago is equal to his age five years from now. How old will they be 12 years from now?
Chris is six years older than Cathy. in two years, Chris will be twice as old as Cathy. Find their ages five years from now.
Answer by lwsshak3(11628) (Show Source):
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Nono is Five years older than his twin sisters. The sum of the ages of the twins three years ago is equal to his age five years from now. How old will they be 12 years from now?
Chris is six years older than Cathy. in two years, Chris will be twice as old as Cathy. Find their ages five years from now.
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let x=present age of twin sisters
x+5=present age of Nono
3 yrs ago:
x-3=age of twin sisters
5 yrs from now:
x+5+5=x+10=Nono's age
2(x-3)=x+10
2x-6=x+10
x=16=present age of twin sisters
x+5=21=present age of Nono
12 yrs from now:
age of twin sisters=16+12=28
age of Nono=21+12=43
..
let x=cathy's present age
x+6=chris' present age
in two years:
x+2=cathy's age
x+6+2=x+8=chris' age
x+8=2(x+2)=2x+4
x=4=cathy's present age
x+6=10=chris' present age
5 yrs from now:
cathy's age=4+5=9
chris' age=10+5=15