Question

Present age of father is $42\mathrm{years}$ and that of his son is $14\mathrm{years}$. Find the ratio of present age of father to the present age of son.

Answer 1

We have,

Present age of father$=42\mathrm{years}$

Present age of son$=14\mathrm{years}$

$\begin{array}{rcl}\therefore \mathrm{Ratio}\mathrm{of}\mathrm{present}\mathrm{age}\mathrm{of}\mathrm{father}\mathrm{to}\mathrm{the}\mathrm{present}\mathrm{age}\mathrm{of}\mathrm{son}& =& \frac{\mathrm{Present}\mathrm{age}\mathrm{of}\mathrm{father}}{\mathrm{Present}\mathrm{age}\mathrm{of}\mathrm{son}}\\ & =& \frac{42}{14}\\ & =& \frac{42÷14}{14÷14}\\ & =& \frac{3}{1}\\ & =& 3:1\end{array}$

Hence, required ratio is $3:1$