Problema Solution
a mother is 20 years older than her daughter. 5 years from now she will be thrice as old as her daughter. how old is the daughter?
Answer provided by our tutors
let
m = the age of the mother
d = the age of the daughter
a mother is 20 years older than her daughter
m = d + 20
5 years from now she will be thrice as old as her daughter
(m + 5) = 3(d + 5)
by solving the system of equations
m = d + 20
(m + 5) = 3(d + 5)
we find
d = 5 years
click here to see the step by step solution of the system of equations
the daughter is 5 years old now.