Problema Solution
Kens mother is 4 times as old as him and the sum of their age is 45. How old are they?
Answer provided by our tutors
let
m = the age of Kens mother
k = the age of Ken
Kens mother is 4 times as old as him
m = 4k
the sum of their age is 45
m + k = 45
by solving the system of equations
m = 4k
m + k = 45
we find
m = 36 years
k = 9 years
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Ken is 9 years old and his mother is 36 years old.