Wednesday, September 18, 2013

One For You to Try

Bags of Marbles Puzzle

The Puzzle:

Bags of Marbles
You have three bags, each containing two marbles. Bag A contains two white marbles, Bag B contains two black marbles, and Bag C contains one white marble and one black marble.

You pick a random bag and take out one marble.

It is a white marble.

What is the probability that the remaining marble from the same bag is also white?

Leave your answer as a comment if you would like.

Happy Birthday Leon Foucault

Leon Foucault was an amazing man who used math and physics to expand our understanding of the universe.

Tuesday, September 17, 2013