Question

the sum of the ages of Ms T and her son is 60. Ms T is 3 times older than her son. Find the age of Ms T and the age of her son.

Answer 1

Explanation:

x = age of Ms T

y = her son's age

x + y = 60

x = 3y

we use the identity of the second equation in the first equation :

3y + y = 60

4y = 60

y = 15

x = 3y = 3×15 = 45

Ms T is 45 years old.

her son is 15 years old.