What is the relationship between the 1s in 911,147,835

I'm not completely sure what you're asking, but if i understand right, it could be that if you add 5 and 3 you get 8, or if you subtract 3 from 8 you get 5.

Hope this helps in some way!

Is this is was you mean:
The one in (91)1 is 10 times the one in 91(1). Same with the one is 147.

It is 2 out of 8 she will pick green and 3 out of 7 she will pick green but red and green would be 5 out of 5 so 50% chance