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Roulette

Math brain teasers require computations to solve.

 

Puzzle ID:#1048
Fun:*** (2.65)
Difficulty:** (1.98)
Category:Math
Submitted By:vivek***

 

 

 



The famous playboy explained to a beautiful woman his system for playing roulette: "In each round, I always bet half of the money I have at the time on red. Yesterday, I counted and I had won as many rounds as I had lost." Over the course of the night, did the gambler win, lose or break even?


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Comments

tec_ocd
Jan 09, 2004

nice. my friends method is each time he loses he bets three times his previous loss (which would cover all previous losses in that set of bets) and as soon as he wins he starts back at a low bet again. it seems this method would win small amount most of the time but lose insanely every once in a great while.... also i wonder how winning and losing streaks affect your theory.
tec_ocd
Jan 09, 2004

something like
1.5 ^ nw
versus
.5 ^ nl
where:
^ means to the power of
nw means number of wins in a row
nl means number of losses in a row

oh wait never mind he still loses on average
addspras**
Mar 14, 2014

the teaser doesn't mention that he would win 50% on every win, how are we supposed to calculate?



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