Two teams, A and B are about to play a game. Previous records show that A has an 80% chance of winning, while 3 has a 20% of winning

Spectators can either choose to buy regular tickets or special tickets. A spectator with a special ticket will receive a refund of 52 fteam A wins

and a refund of sifteam wins. How much extra, minimally, should the special ticket cost to cover the expected value of the refunds offered