Question

The age of father 3 yrs ago was 7 times the age of his sons. If the present age of father is 5 times the age of his son.What are the present age of father and son?

Answer 1

Answer:

The father is 45 years old.

Step-by-step explanation:

Let x represent the father's age and y represent the son's.

So, if the father is 5 times the son's age today then the equation is: x=5y.

Three years ago the father was 7 times the son's age: 7(y-3).

Distribute and compare : 5y-3=7y-21

-3=2y-21

18=2y

9=y

The son's present age is 9, so the equation becomes: x=9(5)

=45