Suits

Three friends, Mr.White, Mr.Gray and Mr.Black met together. Mr.Black said to his friend in a gray suit: "That's interesting, one of us is in a white suit, the other one wears a gray suit and the third one is in a black suit, but no one's suit matches his last name". What is the color of each friend's suit ?

List of Winners

Name	Date	# of attempts	Time spent
Данил Юрьевич	10/31/2012 04:03:59	1	00:02:24
me	09/09/2011 02:57:29	1	00:02:33
Татьяна	04/14/2011 08:05:58	1	00:01:08
Boris	01/27/2011 16:09:06	3	00:01:40
1	11/03/2010 05:29:01	2	00:01:29
wdasf	04/07/2010 14:47:58	1	00:01:27
дима	02/15/2010 04:21:02	1	00:01:50
Алекс	12/09/2009 12:56:07	1	00:00:47
Tasja	12/09/2009 11:38:41	1	00:00:45
ксю	11/25/2009 02:49:19	1	00:00:30
start	04/01/2009 09:32:22	1	00:01:21
Михаил	03/25/2009 06:31:06	1	00:01:35
wakh.viart.ru	03/18/2009 15:30:28	1	00:01:20
Sherka	12/25/2008 22:55:25	1	00:02:12
Sherzodbek	12/23/2008 02:53:56	2	00:41:30
KIA	12/15/2008 17:25:45	1	00:00:50
Yogesh	09/16/2008 04:22:45	1	00:00:49
me	09/08/2008 04:52:01	1	00:05:01
AndreyStar	05/26/2008 19:15:48	1	00:02:19
arzu	05/10/2008 13:04:23	1	00:00:48
PollyMorph	05/03/2008 17:00:31	4	00:02:41
наташа	04/29/2008 12:29:49	1	00:00:37
gg	03/19/2008 23:45:59	1	00:00:42
ttt	03/19/2008 07:38:34	1	00:03:33
mnu	03/09/2008 04:50:53	1	00:02:06
ReedCat	03/06/2008 17:05:52	1	00:00:48
VladStar	03/05/2008 23:49:17	2	00:00:31

Statistics

Visitors	Attempts to solve it	Winners	% solved	% cheated	Total time spent	Average time
2720	27	27	100	0	01:23:16	00:03:05.0370

Exercise #45 from "Math. Additional topics." book for 5th grade (2001). Author - Smekalova.E.V.

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