Question 935618
for every 2 seats that are occupied, there must be 1 vacant seat.
this means that, for every 3 seats, 2 of them can be filled, and one of them must remain vacant.


1800 / 3 = 600 sets of 3 seats.


each of these sets can contain a maximum of 2 seats that are filled.


600 * 2 = 1200


there is a maximum of 1200 seats that can be filled in the stadium, based on that ratio.