So we bet
1 number = 2.7%
2 numbers = 5.4%
3 numbers = 8.1%
4 numbers =10.8%
5 numbers = 13.5%
35 numbers =94.5%
36 numbers =97.2%
37 numbers =100 %
So it is inadvisable to bet more than 18 numbers.
and ,preferably , no more than 17.
And we didn't already know this ?
No it doesn't work like this.
Who said it is inadvisable to bet more than 18 numbers?
You try to jump into conclusion while you haven't fully understood what we are talking about yet.
I understand that math and equations make the minds of many people hurt. However I urge you to try to understand the quite simple equations I posted here
First try to understand the logic of the game (profit, payouts, what's fair, what's actual etc.)
Then and only then you should try to find ways to capitalize on this knowledge.
There are no easy answers. Roulette is a greatly balanced game. It is not this easy to find loopholes and "best bets".