Question 128766
12.5*3X+18*X=688,200
37.5+18X=688,200
55.5X=688,200
X=688,200/55.5
X=12,400 RESEVED SEAT TICKETS WERE SOLD.
3*12,400=37,200 OF THE CHEAP TICKETS WERE SOLD.
PROOF:
12.5*37,200+18*12,400=688,200
465,000+223,200=688,200
688,200=688,200