perplexus.info :: Weights and Scales : Four Weights

Four Weights (Posted on 2004-07-25)

You have 4 weights weighing 2,3,5 and 7 pounds. The problem is none of them are marked. What is the fewest number of weighings you need using a balance scale figure out which weights are which?

See The Solution Submitted by Brian Smith

Rating: 3.5000 (8 votes)

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

Answer

| Comment 32 of 33 |

The required fewest number of weighings is 4.

Posted by K Sengupta on 2007-06-18 04:53:25

Please log in:

Login:
Password:
Remember me:

Sign up! \| Forgot password

Search:

Search body:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (22)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info