Required Answer
Current age of John's dad is 42 yrs.
[tex] \to \: \bf{Solution}[/tex]
Let the current age of John's dad be 'x' yrs.
In that case,
According to the question
[tex]\sf \longrightarrow \: x + (x - 31) = 53[/tex]
[tex]\sf \longrightarrow \: 2x - 31 \: = \: 53[/tex]
[tex]\sf \longrightarrow \: 2x = 53 - 31[/tex]
[tex]\sf \longrightarrow \: x = \dfrac{84}{2} [/tex]
[tex]\bf \longrightarrow \boxed{ \red{\bf x = 42}} \: \cdots\star[/tex]
[tex] \sf[/tex]
Therefore, the current age of John's Dad is 42 years.
[tex] \rule{200pt}{2pt}[/tex]
Although not asked, we can find John's age too i.e (x - 31) = (42 - 31) = 11 years old.
