Question

The present age of father was thrice the age of his son. Three years hence, if the father's age is a years and son's age is b years, then what is the equation to the following information.

Answer 1

Now three years age is a and b
so current ages are a+3 and b+3
so equation becomes
a+3=3b+9

hope this helps
also the answer could be a+3=3(b+3)

Thanks