Answer:
Jill is most correct and it should be $33
Step-by-step explanation:
Total number of seats = x =20000+13000+17000
x =50000
Total cost of seats as per the price;
a = 20*20000
a =400,000
b = 30*13000
b =390,000
c = 50*17000
c =850,000
Average = (a + b + c) /x
Average = (400,000+390,000+850,000)/50,000
Average cost = 1,640,000/50,000
Average cost = $32.8