Hello, I am not a mathematician and therefore unsure about what or how i should be asking to make it clear about what i am after. So i think just showing a practical example is best. If you have two different options for a bet and both are paying over $2 then it is possible to place a certain amount of money on both bets that will not only pay you for your desired return but also pays for the money invested on the losing bet. E.g Desired Return = $100 Bet 1 Odds = $5.50 Bet 2 odds = $2.75 If i put on $40 @ $5.50 it’ll return $220, And if i put $80 @ $2.75 it’ll return $220. $220 – $120 (both bet amounts) = $100 my desired return. Just as long as one of these two bets wins. So what i'd like to know is if there is a formula that could be used to find out the amount to put on the two bets when only the odds and desired return are known? The trick obviously is that both unknown figures are reliant on knowing what the other one is. Many thanks.