Problema Solution
Nathan is 5 years older than Amber. In 4 years' time, he will be twice her. Ho old are they now?
Answer provided by our tutors
Let
n = Nathan's age now
a = Amber's age now
Nathan is 5 years older than Amber means:
n = a + 5
In 4 years:
n + 4 = 2(a + 4)
We have the following system of equations:
n = a + 5
n + 4 = 2(a + 4)
........
click here to see the system of equations solved for n and a
........
n = 6 years
a = 1 year
Nathan is 6 years old and Amber is 1 year old.