Problema Solution
Anton is 4 years older than liza. The product of his age 3 years from now and liza's age two years ago is 90. Find their present ages
Answer provided by our tutors
Let
x = Anton's present age
y = Liza's present age
x = y + 4
(x + 3)(y - 2) = 90
........
click here to see the system of equations solved for x and y
........
x = 12 years
y = 8 years
Anton is 12 years old now.
Liza is 8 years old now.