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Topic: BIRTHDAY TWINS (Read 24063 times) |
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shadon
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Posts: 2
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Re: BIRTHDAY TWINS
« Reply #50 on: Apr 18th, 2008, 2:54pm » |
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[quote author=Icarus link=board=riddles_hard;num=1027807787;start=25#41 date=03/22/07 at 18:17:53]Hey, I am a mathematician!
\quote]
A mathematician, eh? Here's a challenge, then.
say I have a set of twins. one is four, and the other is sixteen. How is this this possable, and what are the odds of this happening?
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| « Last Edit: Apr 18th, 2008, 2:54pm by shadon » |
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Random Lack of Squiggily Lines
Senior Riddler
Everything before 7/1/2008 is now irrelevant.
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Posts: 460
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Re: BIRTHDAY TWINS
« Reply #51 on: Apr 18th, 2008, 3:38pm » |
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one was born on feb 28/march 1, the other feb 29.
[EDIT] 365*.03 [EDIT]
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| « Last Edit: Apr 18th, 2008, 3:39pm by Random Lack of Squiggily Lines » |
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You can only believe i what you can prove, and since you have nothing proven to cmpare to, you can believe in nothing.
I have ~50 posts to hack a "R" into a "D". Which one?
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ThudnBlunder
wu::riddles Moderator
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Re: BIRTHDAY TWINS
« Reply #52 on: Apr 18th, 2008, 4:13pm » |
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on Apr 18th, 2008, 3:38pm, Qaster Qof Qeverything Q42 wrote:
Probability of being born on a leap day
= 97/((97*366) + (303*365))
= 97/146097
= 0.0006394244919471310156950519175616...
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| « Last Edit: Apr 18th, 2008, 7:02pm by ThudnBlunder » |
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THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you.
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MichaelSel
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Posts: 1
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Re: BIRTHDAY TWINS
« Reply #53 on: Nov 12th, 2008, 7:40am » |
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my answer is 8 years
fabuary has a 29th day every four years,
but not every 400 years, so
suspose one of the twins is born at fabuary 28 23:59:59
and the other on fabuary the 29th
on 1796 so there birth day is one day a part
but until 1804 fabuary will not a 29th day.
(fabuary has a 29th day every for years exept in years that divide by 400)
hance my answer in 8 years.
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shadon
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Posts: 2
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Re: BIRTHDAY TWINS
« Reply #54 on: Nov 12th, 2008, 8:26pm » |
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HUH? I didn't ask for a time span. I asked for the how and the probability for having a set of twins wherin one is currently four, and the other is currently sixteen. thunderblunder and, umm, Mr. Q, you are partly there, but read my question again.
(And I need # to # odds  )
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hamzak
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Posts: 7
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Re: BIRTHDAY TWINS
« Reply #55 on: Nov 25th, 2008, 5:56pm » |
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i have a guess
they could celebrate earliers so they can feel like there own individual which is a problem among twing nowadays
the riddle says infinitley small amount of time non zero. imagine how long everything ( the universe , dinasours , i mean everything beginning of time) an infinitley small amount of that could easily be 2 days
those are just guesses i hope there right 
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hamzak
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Posts: 7
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Re: BIRTHDAY TWINS
« Reply #56 on: Nov 25th, 2008, 6:06pm » |
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alright i just made a post but an idea popped in.
ok, in the book around the world in 80 days , im sure you all heard of it for those who haven't if the title of the book doesnt say it all to you the main character phileas fogg was a rich dude bla bla and he made a bet with another rich dude and he went on a bunch of adventures and such but he arrived " 2 days late" but while his servent was out he thought that with the earth rotation and a bunch of math that they were actually 2 days earlie y so he one the bet and happily ever after
but back to the riddle if they were traveling in a plane which go extremley fast they can in theory travel time ( the faster you go the more time zones you skip.) so as sheila is born in timezone A there is an airplane going say 1000 mile per hour ( i dont know how fast planes go) in theory they could be born and have there birhtdays 2 days apart without any of that without " they can celebrate their birth days early" crap. i just want to see the two explain that to there friends
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| « Last Edit: Nov 25th, 2008, 6:07pm by hamzak » |
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towr
wu::riddles Moderator
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Some people are average, some are just mean.
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Re: BIRTHDAY TWINS
« Reply #57 on: Nov 26th, 2008, 12:21am » |
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on Nov 25th, 2008, 6:06pm, hamzak wrote:| but he arrived " 2 days late" but while his servent was out he thought that with the earth rotation and a bunch of math that they were actually 2 days earlie y |
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You only gain one day by going around the world.
Quote:| but back to the riddle if they were traveling in a plane which go extremley fast they can in theory travel time ( the faster you go the more time zones you skip.) |
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Err.. that's not even close to how things work. You gain/lose a day when you cross the date-line, but you lose/gain it again when you go around the world.
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Wikipedia, Google, Mathworld, Integer sequence DB
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