Copyright © University of Cambridge. All rights reserved.

## 'Bipin's Choice' printed from http://nrich.maths.org/

Bipin is playing in a game show. The host tells Bipin that there
are 10 balls hidden in a box - 5 are Red, 3 are Yellow and 2 are
Blue. Bipin pulls out his first ball. It's Red and he wins a large
sum of money. Now his choices are:

- He can stop playing and take his prize.
- He can pull out another ball - if it's Red he doubles his
money, if it's Yellow he leaves with nothing, if it's Blue he can
pick one last ball.

What should Bipin do? Why?