SOLUTION: In five years time, Nana's sister will be three times as old as nana. Four years ago, her sister was 6 times as old as her. Find their present ages.

Question 909155: In five years time, Nana's sister will be three times as old as nana. Four years ago, her sister was 6 times as old as her. Find their present ages.
Answer by clearblueskai(22) (Show Source): You can put this solution on YOUR website!
let x = Nana's present age
y = her sister's present age
in five years time:
x+5 = Nana's age
y+5 = her sister's age

fours years ago:
x-4 = Nana's age
y-4= her sister's age

Equations:
=
=
Elimination:
+ =

Nana: 10 years old Her sister: 40 years old

RELATED QUESTIONS
Four years ago a woman was three times as old as her sister. in five years time she will... (answered by ankor@dixie-net.com)

Jean is three times as old as her sister. In 6 years time she will be twice as old as her (answered by josmiceli)

five years ago, sue was five times as old as her sister. sue is three times as old as her (answered by stanbon)

May is 15 years old. Five years ago, she was as old as her sister will be four years from (answered by fractalier)

A year ago a mother was four times as old as her daughter. Three years ago she was five... (answered by ankor@dixie-net.com)

Caridad is 6 years older than her sister. Four years ago she was 4 times as old as her... (answered by drj)

5 years ago Sue was 5 times as old as her sister Sue is three times as old as her sister... (answered by Alan3354,stanbon)

jenny is 3 times as old as her little sister, but only half as old as her brother. in... (answered by lwsshak3)

Jenifer is 20 years old and her sister is 4 years old. In how many years will Jenifer be... (answered by josmiceli)