perplexus.info :: Probability : Population control

Population control (Posted on 2002-05-05)

In one nation, having a daughter is traditionally prefferable to having a son. Therefore, a couple will continue to have children until a daughter is born. Once they have a daughter, they will stop. (Assume that it is possible for a couple to have an unlimited number of children)

If the chance of a boy or a girl being born is equal, what would be the ratio boys to girls in this country?

See The Solution Submitted by levik

Rating: 3.5714 (7 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
answer	K Sengupta	2007-04-15 13:53:44
The word "equal" and more rants	Mike	2005-05-09 23:29:54
re: Simple solution	ajosin	2005-03-04 01:29:01
umm	Vito	2003-09-06 16:12:04
Simple solution	Federico Kereki	2003-07-27 05:11:05
Rrg Hard	Matthew Bobbins	2003-02-27 10:19:57
re(3): Wasn't it obvious?	levik	2002-07-09 04:30:34
re(2): Wasn't it obvious?	TomM	2002-07-08 22:01:20
re: Wasn't it obvious?	levik	2002-07-08 08:20:58
haha nice	qball	2002-07-06 23:05:47
Wasn't it obvious?	TomM	2002-05-10 22:55:50
thats the same answer	theBal	2002-05-07 07:52:44
solution..I think	btrnviagra	2002-05-07 00:55:15
one half	theBal	2002-05-06 17:42:41

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