OEThe stimulus provides no actual prices for the different tickets, so use A to represent the regular price of an adult’s ticket and C to represent the regular price of a child’s ticket. The tickets are full price on Saturday, so Quantity
A could be calculated as: 120A + 100C. On Sunday afternoon, there’s a 20% discount on all tickets. That means the tickets will be 80% of their original price. Quantity B would thus be calculated as:
150(.8A) + 120(.8C) = 120A + 96C
Comparing the two results, both quantities have an equal total in sales from adults, but Quantity A has 100C while Quantity B has 96C. That means Quantity A is larger, making (A) the correct answer.