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falsereality
Registered: 04/01/13
Posts: 4,112
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Cheryl's Birthday 1
#21553023 - 04/15/15 09:13 PM (8 years, 11 months ago) |
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A logic puzzle that is moderately difficult. It took me around five minutes to get the right answer, but I was uncertain until I looked at the proof. If you want to test your logical reasoning skills, have at it!
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This puzzle was designed for fifteen year old advanced math students. There is some controversy over whether or not this is too difficult for fifteen year olds, what do you think?
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Adolin
Registered: 06/28/11
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shit, its a shame knowing kids who are fifteen are way smarter than me. i mean its not like i didnt know that before, but damn, 10th graders can figure this shit out?
i can't even fathom how to answer the question.
Edited by Adolin (04/15/15 09:19 PM)
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falsereality
Registered: 04/01/13
Posts: 4,112
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Re: Cheryl's Birthday [Re: Adolin]
#21553099 - 04/15/15 09:33 PM (8 years, 11 months ago) |
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.Quote:
Gresh said: shit, its a shame knowing kids who are fifteen are way smarter than me. i mean its not like i didnt know that before, but damn, 10th graders can figure this shit out?
i can't even fathom how to answer the question.
These aren't just any normal fifteen year olds, they're cream of the crop fifteen year olds with advanced math skills... Just stare at it for a bit, let it simmer. It's hard but doable.
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Adolin
Registered: 06/28/11
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is it june 18? thats my best guess, cause its the only date on an 18th
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falsereality
Registered: 04/01/13
Posts: 4,112
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Re: Cheryl's Birthday [Re: Adolin]
#21553123 - 04/15/15 09:41 PM (8 years, 11 months ago) |
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.Quote:
Gresh said: is it june 18? thats my best guess, cause its the only date on an 18th
You're on the right track, but nope.
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CHeifM4sterDiezL
Chief Globerts
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Im not sure any of that shit made sense it was really hard to read I feel like it was written by someone whos first language was not english.
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Adolin
Registered: 06/28/11
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my next guess would be may 19 still kinda a guess but if that isnt right, i have no idea
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Adolin
Registered: 06/28/11
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Quote:
CHeifM4sterDiezL said: Im not sure any of that shit made sense it was really hard to read I feel like it was written by someone whos first language was not english.
lolwut... i dont see anythng gramatically wrong or hard to read about the question, its ust the lack of damn information that makes it hard
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CHeifM4sterDiezL
Chief Globerts
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Re: Cheryl's Birthday [Re: Adolin]
#21553157 - 04/15/15 09:54 PM (8 years, 11 months ago) |
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Become/became dont/didnt
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CHeifM4sterDiezL
Chief Globerts
Registered: 07/28/10
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this is so dumb are they allowed to talk to each other?
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Adolin
Registered: 06/28/11
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those are both very good points >.> maybe im just dumb and can read other peoples dumb grammar well
i dont see how anyone can answer this question with certainty no matter how smart they are. i could be very wrong ofc, i ain't that smart, but i just dont get how there can be one obvious answer to anyone looking at this question the first time. sure, there are answers that are more likely than others, but i dont see how anyone can give a certain answer
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falsereality
Registered: 04/01/13
Posts: 4,112
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Re: Cheryl's Birthday [Re: Adolin]
#21553246 - 04/15/15 10:18 PM (8 years, 11 months ago) |
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hint: her birthday can't be in either May or June.
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Adolin
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Shroomopotamus
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Re: Cheryl's Birthday [Re: Adolin]
#21553293 - 04/15/15 10:34 PM (8 years, 11 months ago) |
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this is the stupidest fucking shit I've ever seen, this isn't math
-------------------- * Live by the mushroom, die by the mushroom This is a trap! A trap! You are all busted! Busted! You fools! If a time comes where I fail to appear I've been abducted and I will miss you all Please smile and pet puppies as often as possible Be happy Be nice (<3);}
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Prisoner#1
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Quote:
Shroomopotamus said: this isn't math
correct, it's logic
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Adolin
Registered: 06/28/11
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isnt logic just math with words instead of numbers?
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blackhawk
Newton's Law of Majesticity
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Re: Cheryl's Birthday [Re: Adolin]
#21553312 - 04/15/15 10:43 PM (8 years, 11 months ago) |
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Quote:
Gresh said: is it june 18? thats my best guess, cause its the only date on an 18th
May is also the only date with 19th
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MrBlueYoMind
Don't do drugs (Without me)
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Re: Cheryl's Birthday [Re: blackhawk]
#21553318 - 04/15/15 10:46 PM (8 years, 11 months ago) |
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Quote:
blackhawk said:
Quote:
Gresh said: is it june 18? thats my best guess, cause its the only date on an 18th
May is also the only date with 19th
Well then we can rule out both June and May. For if the Bernard was told a date that only appeared in one month, then he would know which date was correct.
From this we have July and August. If Bernard now knows for certain what her birthday is, and July and August share the same date except for one, we can conclude that July 16th is Cheryl's birthday.
-------------------- Confucius say: He who sticks drugs in butthole has head up ass. EVOLUTION REQUIRES REPRODUCTION
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The Doobie Dude
Registered: 04/28/13
Posts: 13,498
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Who gives a shit about Cheryl's birthday? She's a bitch anyway, she never chips in for gas money. Fuckin' slut.
-------------------- "There are a million reasons to drink and one just popped into my head. If a man can't drink when he's living how the Hell can he drink when he's dead?" - Irish Limerick I PLURed once because it was PLUR or die. - D.M.T.
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falsereality
Registered: 04/01/13
Posts: 4,112
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Quote:
MrBlueYoMind said: Well then we can rule out both June and May. For if the Bernard was told a date that only appeared in one month, then he would know which date was correct.
From this we have July and August. If Bernard now knows for certain what her birthday is, and July and August share the same date except for one, we can conclude that July 16th is Cheryl's birthday.
Yep! Congrats on finding the solution.
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