All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Logic > Weights and Scales
Three Tests, Take Three! (Posted on 2005-06-23) Difficulty: 2 of 5
You have nine brass rings, but three are actually gold. Can you pick these out using a balance scale three times at the most?

See The Solution Submitted by Old Original Oskar!    
Rating: 4.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: The answer is ... | Comment 7 of 14 |
(In reply to The answer is ... by Charlie)

I'll agree that it would take 5 weighings if you were to weigh them all seperately, but what if weighing 2 was dependent on the outcome of weighing 1 and weighing 3 was dependent of the previous two? I don't know how you would decide what to weigh next, but I have a feeling that you can solve it in three weighings if you take the previous weighings into account when deciding what to weigh next.
  Posted by Tiralmo on 2005-06-23 23:48:22

Please log in:
Remember me:
Sign up! | Forgot password

Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Copyright © 2002 - 2019 by Animus Pactum Consulting. All rights reserved. Privacy Information