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## 'Two and One' printed from http://nrich.maths.org/

Two children are playing a game with three balls, two blue ones and one red one.

Terry is red and Ali is blue.

They toss up the balls, which run down a slope so that they land in a row of three, like this:

The colour in the middle wins that round.
Is this a fair game?

Who do you think will win?

Why?

Try using the interactivity below to get a feel for the game. (The sum column tells you how many times Terry has won so far.)

Full Screen Version
This text is usually replaced by the Flash movie.