Question 901997
Cost is 250 and price for any guest is {{{250/g}}}.


Inequality to show what is wanted, {{{250/g<15}}}.
g is understood to be a whole number or actually a natural number.

{{{250<15g}}}
{{{250/15<g}}}
{{{g>16&2/3}}}
You cannot have a fraction of a guest.
If you restrict the set of values of g to natural numbers, then you can simply give {{{highlight(g>16)}}}.