Question

Present age of father is $42$ years and that of his son is $14$ years.
Find the ratio of age of father after $10$ years to the age of son after $10$ years.

Answer 1

After $10$ years, the age of the father and son will be $52$ years and $24$ years respectively.
Required ratio$=\frac{52}{24}=\frac{4\times 13}{4\times 6}=\frac{13}{6}$.