Question 1180714
s, the son
3s+s, the father, or 4s


{{{s+4s=54}}}-------both ages sum to 54.

{{{5s=54}}}

{{{s=54/5=10&4/5}}}


Son is {{{10&4/5}}} years and Father is {{{43&1/5}}} years of age.
Maybe recheck your problem description.