• 0
Sign in to follow this  
Followers 0

12 Coins

Question

Posted · Report post

Sorry if this has already been posted, I think it's a pretty well known one:

You are given twelve coins. They are completely identical in every respect, except that one of the coins is EITHER heavier OR lighter than all of the others, and you have no idea which. You also have a set of balancing scales. With only three uses of the scales (i.e. weighing some of the coins against some of the others and finding out which set is heavier than the other), how can you determine which coin is the odd one out and whether it is heavier or lighter?

I promise you, it can be done!

0

Share this post


Link to post
Share on other sites

1 answer to this question

  • 0

Posted · Report post

Good puzzle, thepaulthomas, and welcome to the boards! But it has already been posted using pool balls in Weighing IV.

this topic is locked

0

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0

  • Recently Browsing   0 members

    No registered users viewing this page.