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Pairs of Socks (Posted on 2004-09-01) Difficulty: 3 of 5
You are in a pitch black room and need to get a pair of socks out of your drawer which can contain up to 100 socks. In the drawer is a mixture of black and white socks, and there's at least one pair of either color. If you choose two socks, the chance that you draw out a black pair is 2/3.

What is the chance that you draw out a white pair?
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Bonus: what would the answer be if the drawer contained between 100 and 1000 socks?

See The Solution Submitted by SilverKnight    
Rating: 3.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
An approximationSteve Herman2015-02-22 16:54:07
answerK Sengupta2008-01-25 05:51:25
re: nateNate2004-09-09 13:12:05
re(2): Solution (maybe) - ThanksNate2004-09-09 13:10:33
nateBon2004-09-09 09:13:38
Hints/Tipsre: Solution (maybe)nikki2004-09-03 15:54:59
SolutionSolution (maybe)Nate2004-09-03 15:30:56
SolutionSolution (maybe)Nate2004-09-03 15:30:09
SolutionSolution (maybe)Nate2004-09-03 15:29:27
reply to repliesTristan2004-09-02 18:42:30
re: Solution to part 1Federico Kereki2004-09-01 20:57:30
SolutionsolutionCharlie2004-09-01 20:03:59
re(4): Solution to part 1 - almost, + Part 2Juggler2004-09-01 18:54:09
Solutionre(3): Solution to part 1 - almost, + Part 2Nosher2004-09-01 18:52:36
SolutionSolution to 1st partJuggler2004-09-01 18:28:13
re(3): Solution to part 1 - almost, + Part 2Thalamus2004-09-01 18:20:03
Some Thoughtsre(2): Solution to part 1 - almost, + Part 2Nosher2004-09-01 18:08:00
Some Thoughtsre: Solution to part 1Nosher2004-09-01 18:01:52
re: Solution to part 1 - almost, but not quiteThalamus2004-09-01 18:01:19
SolutionSolution to part 1Tristan2004-09-01 17:45:48
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