we all know that final match of world cup will come soon. Here in the city where I am staying right now, some underground gambling house offer the following bets. if you bet Spain win, you will win $210 , if you are wrong you lose $200. if you bet Netherlands win, you will win $170, if you are wrong, you lose $200. if you are running that gambling house, how you hedge your risk? clearly even you take same number of bets on each side, you still have huge risk.