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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)

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Subject	Author	Date
Puzzle Resolution	K Sengupta	2007-06-18 04:55:04
Answer	K Sengupta	2007-06-18 04:53:25
my easy solution	Andy	2005-05-01 17:01:12
mmmmm	Taylor	2005-04-09 23:42:58
re(2): My son's solution	Bruce Brantley	2004-12-30 12:45:22
re: My son's solution	ron	2004-12-30 03:27:52
My son's solution	Bruce Brantley	2004-12-12 09:40:51
re. nitpicking	Hattie	2004-11-24 18:53:58
nitpicking	foto	2004-09-09 20:14:25
No Subject	ktii	2004-08-30 04:46:15
Sorting Networks.	dhruv	2004-08-23 11:54:45
four or five	Bruce Brantley	2004-08-21 22:40:25
re(2): 2 weighings, re(4): done in 3 weighings.... I think =P	mauro schievano	2004-08-10 08:20:17
re: 2 weighings, re(4): done in 3 weighings.... I think =P	Vina	2004-07-28 03:16:45
2 weighings, re(4): done in 3 weighings.... I think =P	Hugo	2004-07-27 10:50:56
re(4): done in 3 weighings.... I think =P	Vina	2004-07-27 03:26:15
re(3): done in 3 weighings.... I think =P	Brian Smith	2004-07-26 21:53:33
re(2): done in 3 weighings.... I think =P	Vina	2004-07-26 14:06:20
re: done in 3 weighings.... I think =P	Brian Smith	2004-07-26 08:11:29
done in 3 weighings.... I think =P	Vina	2004-07-25 22:42:50
re: Why use a computer, common sense says	Federico Kereki	2004-07-25 21:05:16
re: Why use a computer, common sense says	Juggler	2004-07-25 17:16:45
Why use a computer, common sense says	Juggler	2004-07-25 17:04:35
But that leaves the question....	Penny	2004-07-25 16:27:00
All the examples	Charlie	2004-07-25 14:12:08
Four weighings	Hugo	2004-07-25 13:26:55
An example	Charlie	2004-07-25 12:36:07
re: a computerized start	Charlie	2004-07-25 12:18:58
A non-computerized finish	Penny	2004-07-25 12:07:26
re: a computerized start	Charlie	2004-07-25 12:06:55
a computerized start	Charlie	2004-07-25 11:58:17
re: fewest numbers = 4	Penny	2004-07-25 11:15:05
fewest numbers = 4	peychinhwee	2004-07-25 09:55:48

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