Problema Solution
Lea is five times as old as Mercy. In four yers, Lea will be 8 years more than thrice as old as Mercy. find the age of each now.
Answer provided by our tutors
let
l = the age of Lea now
m = the age of Mercy now
Lea is five times as old as Mercy
l = 5m
In four years, Lea will be 8 years more than thrice as old as Mercy
l + 4 = 8 + 3(m + 4)
by solving the system of equations
l = 5m
l + 4 = 8 + 3(m + 4)
we find
l = 40 years
m = 8 years
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