Wrenches (Posted on 2004-07-02)

	Submitted by Brian Smith
Rating: 3.0000 (7 votes)
Solution:	(Hide)
Call the standard wrench S and the four other wrenched A, B, C, and D. Weigh AB vs CS Case 1: AB equals CS Weigh S vs D: If S equals D then none are defective. If S is heavier than D then D is defective and light. If S is lighter than D then D is defective and heavy. Case 2: AB is heavier than CS Weigh A vs B: If A is heavier than B then A is defective and heavy, If A is lighter than B then B is defective and heavy, If A equals B then C is defective and light. Case 3 AB is lighter than CS Weigh A vs B: If A is heavier than B then B is defective and light, If A is lighter than B then A is defective and light, If A equals B then C is defective and heavy.

	Subject	Author	Date
	Scale or balance	john	2005-04-06 17:20:38
	Cool Question	Lozza	2004-09-13 04:06:32
	Here is solution...	Patricia Stamets	2004-07-04 22:59:23
	re: Solution	Shadow	2004-07-04 16:41:36
	re: A shot	Ady TZIDON	2004-07-03 02:13:26
	A shot	rohit	2004-07-03 00:30:20
	re(3): Balanced solution	Arunava Dutta	2004-07-02 11:00:30
	re(2): Balanced solution	Eric	2004-07-02 10:52:04
	re(2): Balanced solution	fwaff	2004-07-02 10:33:39
	re: Balanced solution	Arunava Dutta	2004-07-02 10:31:49
	Balanced solution	fwaff	2004-07-02 10:26:09
	re: Solution - My solution	Arunava Dutta	2004-07-02 10:23:33
	Solution	Eric	2004-07-02 09:17:57