The Atlanta Braves marketing staff knows it has 20,000 seats in the stadium priced at $20 per ticket, 13,000 priced at $30 per ticket, and 17,000 priced at $50 per ticket. Jim says that the marketing materials should say that average ticket price is $30, Jill says it should be $33, and Fred says it should be $35.20. Who is most correct?

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