Roulette probability question?

What is the probability of winning at roulette if you bet on the same color and double your bet each time you loose till you win? Is this an almost guaranteed way to win at this game? Let's say you bet $20 on red. You have a 50/50 chance at winning or loosing. Let's say you loose so you bet $40 the next... show more What is the probability of winning at roulette if you bet on the same color and double your bet each time you loose till you win? Is this an almost guaranteed way to win at this game?

Let's say you bet $20 on red. You have a 50/50 chance at winning or loosing. Let's say you loose so you bet $40 the next time and loose again. you bet $80 the third time. The odds are in your favor that eventually you will win if you keep doubling your money. Is this a good way to beat the game?
10 answers 10