Support for Car Talk is provided by:
Become a Car Talk Sponsor

The Puzzler

Encore Puzzler Answer August 22, 1998: Your marbles or your life

Many years ago a prisoner was condemned to die. He was in his cell, and the warden came to visit him. He said to the prisoner that his odds of dying the next day are 100% ( Big damn surprise, right?) But the warden wants to increase the prisoner's chances to 50%. The warden gives the prisoner 2 shoeboxes, one with 50 white marbles, and one with 50 black marbles. The warden will come in blindfoldeed and pick a marble out of one of the boxes. White, he lives. Black, he dies. The marbles can be arranged in any way. All the marbles must be used in either box. Is there any way to improve his chances above 50%?

The Prisoner's dilemma: The prisoner can improve his chances from 50/50. If he rearranges the marbles, putting 99 marbles in one box and 1 white marble in the other box, his chances are improved.

[ Car Talk Puzzler ]
Search Car Talk
GO
As Read on Car Talk
"You just might need a new car soon, if..."; Foreign Language Syndrome.
Catch Tom and Ray on NOVA?
Watch the show online, see bloopers, and discuss the episode, "The Car of the Future."
Common Car Sales Tricks
Learn the ploys, and chat with our covert car sales operative "Deep Plaid."
Premium vs. Regular
Can you save money and use regular, when your owner's manual calls for premium? Find out.
Guide to Better Fuel Economy
Check out these tips and fork over fewer dineros at the pump.
Car Talk Anniversary Slide Show
A 20-year retrospective, this way. (Warning: Fearfully ugly faces.)
Really, Really, Really Hard Puzzlers
Ready to wrap your cranium around Ray's most perplexing puzzlers? Great!
Maintenance Advice from Tom and Ray
From air filters to oil changes, can you DIY? Find out.