Rene is 6 years older than her younger sister. After 10 years, the sum of their ages will be 50 years. How do you find their present ages?
Let's have R be Rene's age.
And we have a younger sister who is 6 years younger than Rene:
In 10 years, the sum of their ages will be 50. So in 10 years Rene will be:
and her sister will be
and the two added together will be 50:
How old are they now?
and her sister is