Question 971972
Original price per person,  {{{240/X}}} dollars per person.


Four fewer people actually went on the trip, X-4  being how many shared the trip cost.


New price per person,  {{{240/(X-4)}}} dollars per person.


The new price is 2 dollars more than before:
{{{highlight(highlight(240/(X-4)=240/X+2))}}}
That is the equation to solve.  Solve for X first, the number of people who ORIGINALLY planned to go on the trip.


Once calculated, evaluate {{{240/X}}} being the original price per person.