Problema Solution
Juan is 8 years oldger than his sister. In 3 years, he will be twice as old as she will be then. How old are they now?
Answer provided by our tutors
we interpret "8 years oldge" to mean "8 years older"
let 'x' represent the age of his sister, then 'x+8' represents Juan's age
In three years, Juan will be twice as old as his sister will be then:
x+8+3 = 2(x+3)
solving for 'x' we have x=5
5+8=13
Juan is 13 years old, his sister is 5 years old