A school is planning a field trip to a theme park. A ticket to the park costs $21. For a group of 50 or more, there is a 12% discount. The school saved $819 with the discount. How many tickets did the school buy?
With a 12% discount, 18.48 is the price per ticket (2.52 per ticket saved). In order to determine the amount of tickets, we divide the saved amount by the amount saved per ticket.