Sign in. It’s quick, free and it’s up to you.
An account is an optional way to support the work we do. Find out more.
PA Wire
maths week
Maths Week: The answer to Wednesday's puzzle
Did you get it?
THIS IS THE answer to yesterday’s game of chance puzzle.
The question:
1. What are the chances of getting a six with one throw of a die?
2. What are the chances of getting a double six in one throw of two dice?
3. You and a friend are playing a game with two dice. Your friend throws the dice and covers them before you can see them. She then reveals one die to be a six. What’s the probability that the other one is also a six?
Answers and methods:
(a) 1 in 6
(b) 1 in 36
(c) 1 in 11
Although the chances of throwing a double six is 1 in 36, in the third case the possibilities are reduced to only cases with at least 1 six. There are only 11 such possibilities and only one of those is a double six.
have your say