Let ' \(x\) ' year be the present age of father and ' \(y\) ' year be the present age of son.
Four years hence, it has relation by given condition,
\((x+4)=4(y+4)\)
\(x+4=4 y+16\)
\(x-4 y-12=0 \ldots\) (i)
and initially, \(x=6 y \ldots\) (ii)
On putting the value of from Eq. (ii) in Eq. (i), we get
\(6 y-4 y-12=0\)
\(2 y=12\)
Hence, \(y=6\)
Putting \(y=6\), we get \(x=36\)
Hence, present age of father is 36 years and age of son is 6 years.
