Disneyworld is trying to decide what price to charge for entry tickets. It knows that the maximum amount elderly people would be willing to pay for a ticket is $10. At that price, there would be 5,000 tickets sold. There are also 30,000 parents and kids who would be willing to pay $25 for a ticket. If Disneyworld cannot price discriminate, it charges a price of and earn in revenue. If Disneyworld is able to perfectly price discriminate, it will increase its revenue by $10; $875,000; $125,000 $20; $600,000; $200,000 $25; $750,000; $125,000 $25; $750,000; $50,000