Question

If the present age of father is $52$ years and that of his son is $18$ years, then

(Age of father before $12$ years) : ( Age of son after $2$ years)$=$________

Answer 1

Given that,

Present age of father $=52years$

Present age of son $=18years$

Age of father before $12$ years$=52-12=40years$

Age of son after $2$ years $=18+2=20years$

Now, Ratio of age of father before $12$ years to age of son after $2$ years $=40:20$

Lowest form of $40:20=\frac{40}{20}=\frac{2}{1}=2:1$ (Divide both $40$ and $20$ by their HCF $20$)

Hence, (Age of father before$12$ years) : ( Age of son after $2$ years)$=$$2:1$