perplexus.info :: Weights and Scales : Yet one more coin sorting problem

Yet one more coin sorting problem (Posted on 2004-05-31)

You have five coins, apparently alike, but actually of different weights. You also have a two arm scale.

Can you manage to sort the coins in ascending order, using the scale only seven times?

Bonus question: can it be done in fewer weighings?

See The Solution Submitted by Federico Kereki

Rating: 4.0000 (4 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

brief brief brief solution to 1st part

| Comment 5 of 20 |

errr.. thered be 64 different cases to do. but all of them can be done with 7 weighings.

Posted by Victor Zapana on 2004-05-31 10:44:40

Please log in:

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

Chatterbox:


perplexus dot info