Quite a response on the mental aerobics challenge I gave you. Should have known this would bring Richard Avon out of the woodwork! Even my nephew Zach. So your challenge was:
David and Brian are serving a prison sentence for chewing gum in public in Singapore. They share a cell and spend their days rolling dice to pass the time. They each have one die. They both are so worn out however, that only three sides are visible. David’s die shows only the sides 2, 4 and 5. Brian’s die shows only 1, 3 and 6. If their game awards the winner who rolls the highest number each time, who will win most often over the long run?
Answer: David will win 55% of the time. Here’s why:
When David rolls 2, he will win once and lose twice.
When David rolls 4, he will win twice, and lose once.
When David rolls 5, he will win twice and lose once.
When Brian rolls 1, he will lose three times
When Brian rolls 3, he will win once, and lose twice.
When Brain rolls 6, he will win three times.
So David wins 5 times, and Brian only four.
Quite a few of you got it right, although the logic of some of you was a little shaky. And a few of you have conspiracy theory issues! The fame and adulation for being first goes to Michael Eisbrener.