A father's age is 4 times that of his son. 5 years ago, the age of the father was 7 times that of his son. What is the present age of father and his son?
1 Answer
The son is 10 yo. and the father is 40 yo.
Explanation:
So the father's age (F) is 4 times the son's age (S).
5 years ago, the father's age (
So:
Now we can take the first equation and set it equal to the second, since both "right" sides are equal to F.
Now we solve for S:
So, the son's current age is 10 years old and the fathers is 4 times that, or 40 years old.