Problema Solution
a girl is half her mother's age. her father is five years older than her mother, together the ages of all three of them sums up 100. how old is each of them
Answer provided by our tutors
Let
x = the age of the girl
y = the age of the mother
z = the age of the father
x = y/2
z = y + 5
x + y + z = 100
By solving the equation we find
x = 19 years
y = 38 years
z = 43 years
The girl is 19 years old, the mother is 38 years old and the father is 43 years old.