Question 921400
Group of n men.
Price was {{{168/n}}}.


IF n-2, then price  {{{(168/n)+2}}}.


Either way, the bill still be 168 pesos.


Cost of 168 pesos, {{{highlight_green((n-2)(168/n+2)=168)}}}.


{{{(n-2)(168+2n)=168n}}}
{{{168n+2n^2-2*168-4n=168n}}}
{{{2n^2-4n-2*168=0}}}
{{{n^2-2n-168=0}}}
{{{highlight((n+12)(n-14)=0)}}}


The sensible conclusion is 14 men are in the group.