To fit the Bet Progressions that you use for Betting various methods. There are extremely numerous ways to Bet on these Numbers and Colors.
For 18#s (47% Win rate) you need 1 Win for every Loss
For 24#s (63% Win rate) you need 2 Wins for every Loss
For 27#s (71% Win rate) you need 3 Wins for every Loss
For 29#s (76% Win rate) you need 4.1 Wins for every Loss
For 30#s (79% Win rate) you need 5 Wins for every Loss
For 32#s (84% Win rate) you need 8 Win for every Loss
For 35#s (92% Win rate) you need 34 Wins for every Loss
Choose the one that fits the Progression that you use.
For 27#s (71% Win rate) you need 3 Wins for every Loss
For 29#s (76% Win rate) you need 4.1 Wins for every Loss
For 30#s (79% Win rate) you need 5 Wins for every Loss
For 32#s (84% Win rate) you need 8 Win for every Loss
For 35#s (92% Win rate) you need 34 Wins for every Loss