Lucky Ladies Question

[Chumash Stomper]

Chumash has adopted the Lucky Ladies bet which I believe pays 4 to 1 if a 20 comes up.

With a simple insurance count, when would this become positive?

An insurance count has tens as -2 and non-tens as +1.

I am two stoopid to figure out how to calculate this. I tried setting up the following but it didn't seem right:

96/x * 95/x-1 = 1/4

I get an answer for x of like 189 which means you have to see over 100 non tens before you see one ten to make it an even bet. Seems too high to me, even for a shady casino like the mosh.

-Econ Major

 

[The Mayor]

This bet is beatable to the tune of about $10/hour in the long run. There is a major article on it on this site, have you read it?

--Mayor

 

[Chumash Stomper]

I have now... thanks!

My error in the evaluation was that I didn't realize Ace,9 was included.

Thanks. Feel free to bust this thread.