Are you smarter than a Singaporean 14-year-old?
This is P5 math question from a Singaporean maths test.
This is why Singapore routinely tops maths worldwide.
May 19??
Cheryl is a fucking bitch making new friends try to guess her birthday.
>>43744056
That question has no answers
And why is a Jewaporean test in Gwilo?
>>43744056
>le confusing assignment
>are you smart
Just read it 10 times, easy.
>>43744056
Am I being detained???
>>43744108
That's the only day with 19. Bernard would know without the month.
>>43744056
what are the conditions? I could potentially know how to answer it
>>43744056
>Smarter
Surely you mean educated?
June 17
>>43744241
With this logic, it could also be June 18 as well. Hmm...
>>43744267
I suppose it would mean may 19th. As if bernard were to know he would have to be given a unique date.
>>43744304
explain
>>43744304
Question should be "are you smarter than the person that wrote this question?"
It cannot be May or June or else Albert would not know that Bernard didn't know. It cannot be the 14th. Therefore it must be July 16th
>>43744056
how is this a math question?
>>43744108
>>43744302
>>43744304
>Wrong
Sorry July 14th
>>43744375
Problem solving.
>>43744371
Winrar!
>>43744056
Albert says he knows Bernard doesn't know the answer,
>so it cant be may or July
Bernard says he knows know hes been told its not May or July
>So it must be July 16, August 15, or August 17
Albert says he knows now that Bernard knows.
>So it must be July 16th
Bernard was told 16, and Albert July.
it has got something to do with induction
there is literally nothing here, Albert knows month, Bernard knows day.
missing variables.
July 16
This has been viral for awhile in Singapore. It is logical deduction and no way a maths problem
>>43744056
July 16th. The wording is kinda confusing at first.
>>43744056
June 18
>>43744371
>that description
Explain how Albert is a precog knowing anything about what Bernard knows without having the answer himself again?
Singapore is a neo-fascist dictatorship. Their kids perform well on tests because of the persistent threat of state violence.
>>43744476
albert and bernald both have one piece of the puzzle, albert has the month and bernald the day.
>>43744371
actually i don't get the assignment
albert knows the month and bernard knows the day?
also shouldn't it be 'at first i DIDN'T know...'
>>43733375
He knows the month is July. Since both dates in July, 14 and 16, are repeated for different months, he knows that Bernard doesn't know.
look
albert has the Month,
Bernard has the date.
A:
>I don't know, buit I know Bernard doesnt know either
so there's more than one option for Bernard.
B:
>At first, I didn't know, but now I know
so he ONLY knew the month, but with what A said, he knows that one of the month is the birthday, so in knowing this, he knows the birthdate
A:
>Then I also know
so now A has the final pieces of information to make the birthdate
and so now they know when it is.
jesus fellas its not hard
>>43744463
>>43744468
explain
>>43744534
You have to understand this is exam question for 11 year old kids
Bernard says he knows know hes been told its not May or July
>>43744400
You've failed to actually explain the logic of this statement
>>43744476
its like the eyes colour island puzzle. There are 200 people on the island 100 people with blue eyes, 100 with brown, and one guru with green eyes. No one can speak except the guru and no one knows the number of people with each eye colour. Every day a boat comes to take people off the island, however you can only go if you KNOW, not guess your own eye colour. On one day the guru says "I see a person with blue eyes". How many people leave and on what day?
>>43744560
11 year old asian kid
>>43744056
>A knows X
>B knows Y
>A and B both know X and Y
what the fuck
are they supposed to have talked to each other or not
>>43744056
June 17, ggwp izi
Took like 2 mins
>>43744563
look at the picture
put the numbers in order.
with B only knowing the number, he could know what date it is. but A knows that B is too dumb for that.
>>43744534
The question is worded absolutely shit.
It didn't tell you that Berned and Albert put their information together.
It just said that bernerd found out(without explaining how) and now that Bernerd knows, Albert also knows.
It did not imply that they ever even spoke to each other because of the 3rd person referral
>>43744572
sorry 201 people including the guru
>>43744555
If Cheryl told bernad the day was 18/19, he would immediately know the datE. Since albert said bernad won't know the date, clearly it is not the months with those numbers.
From there with are left with the July and August months, for bernad to know the date, there has to be a single clear choice, 14 overlaps so it is out leaving the other 3 dates and only 1 of them is in a single month
>>43744598
if there's a table of X and Y values then it makes sense. ( hint, there is )
>>43744563
Albert says he knows Bernard doesn't know, Bernard would know if it was May 19 or June 18.
Given Alberts statement we can eliminate May and June.
>>43744560
Evolved aspies? I don't fucking know how you can extract a date from that, it's retarded and makes no sense.
>>43744576
Which are worse at math than 11 year old white kids. They're just better at cheating
The students know these types of questions will be asked, so they are taught a systematic way to solve them. It's not impressive at all.
>>43744653
How does it feel to be dumber than an 11 year old?
>>43744653
I'm proud of you anon. It takes a lot of courage to admit how stupid you are.
>>43744056
Studied there in when I was younger they do a VCE type exam in year 6, and the grade you get will determine the secondary school(yr-7 to 11) you go to
June 18
>>43744056
Here we go.
1. Albert has a month which is definetly not enough. But he also somehow deduces from his month that Bern CAN NOT KNOW the date too. But how can Bern know the date? Only when number is something unique like 19 or 18. Which means the month that Alb knows is not May or June.
2. Now Bern looks at his mugfuggen number which is 14,16,15 or 17. Since Bern now KNOWS the answer it's not 14 either (cause it duplicates so he wouldn't know). So the answer is 15,16 or 17 from July or August.
3. Alb now also somehow knows. It's not august since it has 2 numbers left, and Alb doesnt know the number. But if he knows, than he has a July.
4. With two powers combined it's July 16th.
>>43744665
Logical thinking is systemic and everyone should learn it instead of endless repeating maths questions for practice
>>43744677
Well, I've never had anything like that in my life, so I'm not admitting that I'm stupid.
This is a terribly worded problem, 70% of the difficulty comes from how badly worded it is. Once you get over that fact, all you need to do is look at what months and days don't overlap with their knowledge, and it's easy as fuck
>>43744665
agreed.
we had that too
>>43744572
My point is that the logical analogy is flawed.
First they are given a single piece of information about the date and a list of possible answers.
Somehow, Albert is able to know details of Bernard's answer without knowing the answer himself? That is not a realistic scenario. If they are going to claim selective knowledge like this, they need a different analogy.
>>43744745
its not flawed. Its just induction
>>43744745
Albert knows Bernard doesn't know because he isn't a retard and realizes you that none of the dates in the month he was told were unique. Each day of the month also occurs in a different month.
>>43744056
It's either June18 or May19
I hope it was June18, meaning it's likely she was conceived on September 11.
>>43744745
Because Albert knows the month. And since Bern is not screaming that it's 19 OR 18, WE can deduce that that month is something "safe" from unique digits like July or August.
>>43744644
Or, since it doesnt list which month she told albert, and which date she told bernard, but yet since bernard knew from only the date, the albert figured it out, logically, it was the date that never repeats in the list of 10. May 19th
>>43744056
This test is extremely simple.
Albert knows the month.
Bernard knows the day.
Only unique days are June 18th and May 19th.
Albert says Bernard can't know it, means June and May are excluded.
Bernard now knows it, meaning it must be an unique day of the remaining.
Possible are July 16th, August 15th and August 17th.
Albert now knows the birthday as well, meaning the month must be unique.
Solution is July 16th.
>>43744768
It's not induction in the least.
induction is the following:
1) n=1 is true
2) n true implies n+1 true for all n
therefore, all it is true for all n.
Unless you mean inductive reasoning, you're wrong
>>43744056
This is shitty because of poorly translated, right?
>>43744785
How does Albert know Bernard doesn't know when nobody told him Bernard doesn't know. If cheryl told him, then she told him more than just the month, which the problem states did not happen.
>>43744832
It's kinda badly worded, but understandable.
I think the most difficult part is the grammar.
>>43744824
Why would I mean mathematical induction. Also that isnt maths induction
>>43744880
Exactly.
Some fucking dickhead translated this wrong.
>>43744056
>Singapore
Literally who?
>>43744880
He knows Bernard doesn't know because the two months with unique dates are not the month Cheryl is born with.
The only way for Bernard to know the month with only the day is for the day to be 18 or 19. It isn't rocket science.
Inductive reasoning is a logical process in which multiple premises, all believed true or found true most of the time, are combined to obtain a specific conclusion.
Inductive reasoning is often used in applications that involve prediction, forecasting, or behavior. Here is an example:
Every tornado I have ever seen in the United States rotated counterclockwise, and I have seen dozens of them.
We see a tornado in the distance, and we are in the United States.
I conclude that the tornado we see right now must be rotating counterclockwise.
A meteorologist will tell you that in the United States (which lies in the northern hemisphere), most tornadoes rotate counterclockwise, but not all of them do. Therefore, the conclusion is probably true, but not necessarily true. Inductive reasoning is, unlike deductive reasoning, not logically rigorous. Imperfection can exist and inaccurate conclusions can occur, however rare; in deductive reasoning the conclusions are mathematically certain.
Inductive reasoning is sometimes confused with mathematical induction, an entirely different process. Mathematical induction is a form of deductive reasoning, in which logical certainties are "daisy chained" to derive a general conclusion about an infinite number of objects or situations.
>>43744823
i see, the wording is made to seem like bernard knew from being told, not from being told he couldnt figure it out from the date. But then again, how could albert say he doesnt know, he would have to assume he was told either 18th or 19th. what eliminated the 14th from this
>>43744823
>Only unique days are June 18th and May 19th.
What is unique about those days?
>Albert says Bernard can't know it, means June and May are excluded.
Why?
Holy shit, I just skimmed through the thread.
/pol/acks are fucking stupid.
>>43744056
Grammar's wonky, the question would be meaningless to anyone but Singaporeans.
>>43744937
ah, i see, the choice between repeating numbers or repeating months leaves only one choice after that fits neither
>>43744644
Just because you can rule out May 19 and June 18 doesn't mean you can rule out those months altogether
>>43744939
Because Alberts says with confidence that Bern DOESN'T KNOW.
The only way Bern CAN KNOW from number only, if when the numbers are unique like 18 or 19. If Albert is confident that means that he knows that month and that is a month without unique numbers - july or august.
>>43744939
Have you read the question?
>>43744056
Typical woman being this vague.
Bitch just tell me your fucking birthday.
>>43744056
>>43744979
Albert ruled them out, not us. Because he knows that month.
If he says "Bern doesn't know", that means Bern can't even probably know, because the month doesn't have unique numbers.
>>43744939
>What is unique about those days?
Unique about those days 18 and 19 are that they only appear once. So if Bernard was told one of them, he would know the date.
>Why?
>Albert says Bernard can't know it, means June and May are excluded.
Albert was told either June or May, he could not exclude Bernard knowing the exact date because of the above unique days.
SWEDEN YES
Sweden sure is world class education.
>>43744937
>>43744971
Good job. At least you're not as bad as Captain Sweden.
>>43744999
Thanks.
>>43744056
1: Albert knows the month, but not the date. Bernard knows the date, not the month. Albert can safely say that with just the date, you cant know the correct month, so it cant be a unique date. So all months with unique dates are gone, its not May or June.
2. Bernard knows the day and can now say what the cunt her birthday is. So it cant be the 14th, else he wouldnt know. Only August 15th, July 16th and August 17th are left.
3. The only way Albert can now know what the birthday is without getting a hint from Bernard, is to have only one date left in the month. It must be July 16th, as august has two choices left.
>>43744745
>Somehow, Albert is able to know details of Bernard's answer without knowing the answer himself?
Of course! Depending on the answer. If Albert is told July or August, then that eliminates the possibility of May or June, because if Bernard had been told 18 or 19, he could have worked out the date with that information alone.
>not considering this as a possibility
>>43744999
So basically the only ones who got it right are Russia, Australia, Switzerland and the USA. Everyone else is retarded.
>>43745103
To be fair, a bunch of Americucks and Auscunts got it wrong.
>>43745103
It isn't hard if it had proper wording.
What made it go viral was this was found in the exam of a 11 year old kid.
But who was phone?
>>43745103
Some of us haven't touched anything school related for years.
>>43744056
>>43744999
Please apply this to adult society.
>>43744176
Then you are autistic retard with an IQ of 90,
It's quite easy actually.
Ok, so albert says "i know bernard cant know" meaning it isnt a month with a unique date. So bernard knows it isnt may or june, as july and august both all have dates that repeat in other months.
at that point bernard realizes this, since he knows the date, he applies it to the 2 months he has, and gets july 16th
>>43744371
Freedom wins again :^)
>>43745139
>had proper wording.
What is wrong with the wording?
I am confident I could have solved it back when I was 11.
>>43744999
Yeah, this would have made sense if the question fucking said that Albert and Bernard were working together.
>>43745139
We've had quite a lot of similiar tasks back in school. Our math teacher liked to give them as an extra, non-graded homework, just to see who cares about her subject enough.
>>43744926
Yes, he can gleam this information from induction but in a real world scenario he couldnt know this. Maybe Bernard already knows the full date? Nobody told Albert what Bernard knows
>>43745160
and since albert then knew after bernard did, it couldnt be repeating dates, otherwise bernard couldnt of figured it out, so it isnt the 14th. still fuzzy on what eliminates the 17th
>>43744056
Why is this test in english?
Is the Main language in Singapur english?
Or is OP talking bullshit?
July 16th, would be easy as fuck if written in native language of a 11 y/o kid
it's a trick question.....
....there are no Singaporian kids named Cheryl, Albert, or Bernard.
they are all named Ching Chong Pow Zing and such.
Source: superior American public schooling.
>>43745213
Albert knows the month from the start.
He knows that this month does not contain any unique dates, so he can say that Bern DOESN'T KNOW SHIT.
If it was may or june, then there was a chance that Bern can figure out the date just from number.
>>43744791
It's July 16th
>>43744056
>they want to know when her birthday is, Cheryl gives them a list of 10 possible dates.
Cheryl is a cunt.
>>43745013
>>43744999
Bernard/Albert cannot simply rule out May or June because they contain non-repeating numbers.
Furthermore, Albert cannot be the the first to speak and know that at first Bernard doesn't know. Bernard never communicates his unknowingness and so the date could May the 19th or June the 18th.
Hence the statement 'but I know that Bernard does not know is false' - Albert simply cannot know that when being the first to speak
One has to assume that Cheryl isn't an idiot for this riddle to be worthwhile - but that isn't a valid assumption.
answer here. please try everything you can before looking.
>>43744939
the solution is right there..
are you a somali or something?
>>43744056
This problem has a big mistake and nobody seems to notice. When Bernard narrows it down he says that he knows when the birthday is, basically the 3 options are July 16th, August 15th, and August 17th, the day Bernard got can be a 15 or 16 or 17. Whichever the day is Bernard would have said that he now knows the answer (and it's true), but Albert has no way to know which one of those 3 actually is. Unless this problem works with magic and Albert does some psychic shit he has no way to know which one of the three dates is the right one, they only added that part so the kids could solve it backwards and "know" that it is July 16th, but in real life you can't solve it that way because you don't know if the rules of the problem are absolutely true. The correct answer is that the birthday is either on Aug 15, 17, or July 16, and that Albert wasn't really sure at all when he claimed that he also knows.
>>43745172
Depends on how your brain interprets english I guess. I didn't even know, that Albert knew the date, and Bernard knew the month to begin with. So I feel smart again, and Singapoor has shit english.
>>43744056
>cheryl gives them a list of 10 possible dates
No, she doesn't. No one does that when asked their birthday.
Cheryl actually just told them outright what her birthday is and everyone goes on with their day. That is the answer.
>>43745266
Albert
KNOWS
MONTH
FROM CHERYL
FROM THE BEGGINNING
SO HE CAN RULE OUT JUST FINE
YOU DENSE CUNT.
>>43744056
pol/tards
Also Bernard is a liar.
>>43744056
As a teacher, this question is fucking retarded.
if anyone can't understand this they are retarded, I got it after not sleeping for ages.
>>43745175
They aren't working together in any way! The conversation between them at the bottom is all the communication they need.
>Albert knows that Bernard doesn't know.
>This is because Albert knows that Bernard would know if Bernard had been given the numbers 18 or 19.
>This is because these numbers are unique and knowing the number alone would be enough to work out the date
>Albert knows that it can't be either of these numbers because he was given either July or August, which these dates do not belong to
>Albert realises all this and declares that Bernard cannot possibly know the date
>Bernard hears him, realises the logical steps he has made, realises that the month is either July or August, and declares that he knows the date.
>Albert realises the logical steps Bernard has just made, and realises that the only way Bernard could know the date is if the day he was given is 16, because this is the only number possible in July or August that only occurs in one of them.
>Albert now knows the date too, July 16
tl;dr, it's not worded badly, all the information is there, you just need to look for it
>>43745241
GJ Swissbro. 2/2 Swiss could solve it. Switzerland confirmed for smartest country.
>>43745227
English is an official language there, but it's commonly mangled into "Singlish."
Nuance and specificity are often sacrificed in the process.
June 17th idiots.
>>43745227
English is the predominant language of education in Singapore, owing to its history as part of the British empire
>>43745385
>June 17th idiots
what's your reasoning behind this?
>>43745376
seoul? Hah, I bet I know you.
>>43745348
could be august 17th by your logic aswell :^)
month guy states other guy CAN'T know the answer that means none of the 2 unique numbered months are it, leaving the 2 other months day guy realized this and said he knows the birthday now only way for day guy to reach this conclusion is by the only unique one left, month guy now knows it.
this sprang me awake, anymore like this?
>At first I don't know...
they still can't english
>>43744891
http://en.m.wikipedia.org/wiki/Mathematical_induction
yes it is. Don't try to teach other people math before you learn it yourself
>>43744056
> at first I don't know when Cheryl's birthday is...
> don't
> didn't*
How am I supposed to take this seriously?
There is no answer. How could you trust a bitch you just met who's giving you the runaround on something as basic as a birthday? Albert and Bernard should just cane that bitch in true Singaporean fashion until she coughs up the real answer.
>>43745418
nope, because if Albert had been told it was June and Bernard had been told 17, the conversation would have gone very differently. Albert wouldn't have been able to declare in the first place that Bernard can't possibly know. This question only has one logical answer
>>43744218
lel
>>43745418
>>43745493
oh my bad I read that as June, not August, sorry, ignore that response
>>43745267
>knowledge of others peoples knowledge gives us knowledge
I get what they are trying to go for in this problem, but can anyone explain how this could ever be a real world scenario? It's a flawed analogy.
Thank you, I needed reinforcement of my stupidity today.
>>43745332
maybe you should put some of that logical thinking towards paying your debnts
It can be any day, the logic they use is bunk and has no practical application.
>>43745550
you're wrong.
>>43745306
top kek
>>43744056
Why is it not in screaming cats then?
Albert is given the number (17) which is not unique, so he knows Bernard cannot know the exact date.
Bernard is given the month (June), but now realizes that the day cannot be unique. He figures out the date as June 17th.
After hearing Bernard's confirmation, Albert is also able to determine the date as June 17th.
>>43745247
I shit you not, two of the Singaporeans in my uni course are called Cheryl and Bernard.
>>43745529
In my experience, from high-school onwards, scenario-based math problems they give you are always hyper-unrealistic. It's just an academia circlejerk.
>>43745550
Retard detected.
>>43744709
thank you for explaining russbro
>>43745596
Are you retarded?
Bernard was told 16, and Albert July.
>>43745529
it's acutally not. you use logic to eliminate all incorrect possibilities to find the true answer
>>43745596
moth guy says it's not possible for day guy to know the month, that means the months with unique dates are ruled out, leaving the last 2 months, day guy says he now knows the month because of the remaining 2 there's only 1 unique number, month guy now knows only way for day guy to know the month is by the unique one, this is childs play.
>>43745645
If Albert was told July, how did he know Bernard could not know the exact date?
>>43745596
retard, that way it could have been August 17th as well. Albert doesn't tell Bernard anything that isn't in the discussion at the bottom.
>>43745602
English names mate.
Most asians re-name themselves when they go to university here so people actually know how to pronounce it.
>>43745683
because both of the numbers in July belong to other dates as well
>>43745683
>exact date?
Because both numbers in July are not unique.
>>43745683
Because the only way for Bernard to deduce the date from the day is if he was told the day was 18 or 19. You are confusing date with day here.
>>43745683
Because there are no unique days in July. No matter which of the two days it actually was in July, that same day could have also been in a different month. If it was the 14th, it could be July OR August. If it was the 16, it could be July OR May. Therefore, there was no way for Bernard to know from the day alone, given that the month is July
>>43745638
lol, that pic
>>43745348
Or Bernard could stop being a piece of shit and tell Albert which day the dumb psycho bitch told him so they could eat cake.
bring on more of these logic deducers, /pol/ needs more of these we are rusty.
>>43744302
This is the right answer
>>43745779
This. Anyone got anymore? I'm in the mood for some puzzles
>>43745768
I don't know why this made me laugh hysterically
may 19
>>43744056
>date questions
how are they related to math again other than linguistic/logic questions to torture children with?
>>43745805
It's not though, you autistic thunder nigger
>>43744371
No offense, but what a fucking stupid answer to a fucking stupid question.
>>43744056
>can't solve
Alright it's official. I'm stupid
>>43745822
so you can tell when your boss is a lying sack of shit, through logical deduction.
>>43745713
May 15 May 16 May 19
June 17 June 18
July 14. July 16
August 14. August 15. August 17
The Answer is : June 17. Tips: Put your self in Albert and Bernard, each statement at a time.
"Albert: I don't know when Cheryl's birthday is,"
Albert is given only the Birthday Month. He could be given either May, June, July or August.
"Albert:. . . . but i know that Bernard does not know too. "
This is the part where the solution is reveal. Whats makes Albert said those statement. Because Bernard who is only given the Birthday Date if where to receive the date 18 or 19, hence makes Bernard automatically knows Cheryl's Birthday, as there is only two unique numbers in the list.
But Albert did said that Bernard does not know too hence it's safe to say we can eliminate May 19 & June 18.
"Bernard: At first I don't know when Cheryl's birthday is, but I know now. "
This is the confirmation statement. Its true at first Bernard didn't know when Cheryl's Birthday is.
"Bernard: At first I don't know when Cheryl's birthday is, ... "
This reconfirms Albert previous statement is true. Then Benard said,
"Benard:... but i know now. "
Because, for example if Bernard were given the Date 17, its true at 1st he wouldn't know the Birthday as Date 17 could be either June or August. But since Albert's made that 1st statement, he is now assured that the answer is June 17. You may try example for if Bernard given Date as 15, it could either be May or August, hence that makes Bernard not knowing the answer. The hint is that he does know the answer, and the final answer is June 17.
>>43744400
how does this get them to the moon?
>>43744218
top kek m8
>>43745834
>Couldn't figure it out
>>43745658
It's not realistic. Albert and Bernard seems to partially know each others thoughts without knowing the solution.
It's like if I came up with a scenario about using a key to open a lock, then bent the laws the the universe by telling you the key only works if you know the key works.
The world does not work like that. The problem is that asian cultures (primarily India) explain everything with analogies, even to the point of where the analogy makes no sense, unless you already know the solution, which makes the analogy worthless. Come up with a better analogy or don't use an analogy at all. It's that simple.
>>43745856
settle down cobber
>>43744056
And here, ladies and gentlemen, is why most kids are shit at math nowadays.
Who the hell cares about Cheryl and her beta orbiters, I aced spoken tests because I knew and cared about solving a problem, and always failed written exams because who the fuck gives a shit about Johnny and his room wallpapers.
>>43745856
there's one big, glaring problem with the answer being June 17 and I don't know why you haven't noticed it. Albert wouldn't have been able to definitively say that Bernard doesn't know the date, if Albert has been told June, because Albert would know that June 18 is a unique date being the only one with an 18, and so from his point of view at this time, this full date could have been possible, and Bernard could have known, and Albert wouldn't have been able to truly declare that Bernard couldn't know. This is why it can't be June 17.
>>43745919
HOWEVER
Cheryl then tells Albert and Bernard separately the month and the day of her birthday respectively.
>respectively
Okay I was wrong, I admit it. It's July 16th.
>>43745930
>I'm not stupid, it's the education not being tailored to my needs!
>>43745537
following the same logical deduction
the answer boils down to NO.
>>43745989
>education
You honestly call that an education?
>>43745306
Yes, I was dense about that.
But know I'm dense about the logic of how the two dates in August were eliminated. Please explain - the conversation would be the same if Cheryl says the 17th to Bernard.
>>43746019
because month guy said the day guy can't know it and if day guy got any of those uniques he would know the month and day.
>>43745907
they gave each other clues based on what they were saying. elimination.
>i don't know, but i know he doesn't know
if he actually knew it, then it would be so simple and stare me right in the face
>he knows that i don't know either
then it couldn't possibly be any of these
and so on
Also I just found out one of the girls in this picture is "Cheryl".
I know which one it might not be, but I don't know which one it is.
Can you figure out which girl is Cheryl?
>>43744999
>15 to 17, with only 14 occuring twice
wat
It's 50/50 July you fucking cocksuckers.
It's not math, it's a retarded Layton-tier quiz.
This is problem solving, not math...
All math is logic, not all logic is math.
>>43745907
>It's not realistic. Albert and Bernard seems to partially know each others thoughts without knowing the solution.
They don't have to. I don't understand how someone can fail to comprehend this problem even after reading the solution. For simplicity's sake, I'll call the two guys "month" and day".
- Month knows it's in July. That means day has to know either the 14th, or the 16th.
- Whether it's the 14th or the 16, there are TWO months it could possibly be in. Therefore regardless of which of those two days it is, month knows that day cannot possibly know the correct date.
- Day figures "If he knows I DEFINITELY don't know the date, that rules out May and June. Since those have unique days (18th, 19th), then if month was told either May or June, he'd think I COULD know the date"
- This leaves July or August. Day knows the date is on the 16th, meaning July is the only option
>>43746092
if he knew then it implied he never had to guess
>>43746086
Not that rare tbh. I see Bosnia on /int/ pretty often
>>43744176
Chinese make the majority of Singapore but the country operates in, fluent, English.
Phase One - Bernard gets a date and Albert gets a month. Somehow Albert finds out that Bernard doesn't have the answer. Albert comes to realization that the number told to Bernard can't be 19 and 18. He tells that he has no idea when the birthday is.
Phase Two - Since Albert still has no anwser and he knows that the date cant be 18 or 19, Bernard realizes that the month cant be June, because otherwise Albert would know the answer. That leaves August, July and May. But suddenly Bernard has the answer.
Phase Three - The only way the Bernard could know the answer is he was told that the date was 17.
Albert understands this and also gives the correct answer: August 17
anyone got an even more complicated version of this?
>>43746025
Singapore's education system ranks very highly in international tests
One of these girls is Cheryl, HOWEVER, the other 2 are not Cheryl.
Cheryl's boyfriend knows which one is Cheryl even without looking at her face, BUT she must be wearing her uniform without the jacket. The other girls boyfriends can't tell the difference between their girlfriends, but they know which one is Cheryl.
So, tell me, which one is Cheryl and why?
>>43746162
they are #1 in all education stats.
>>43746181
Doesn't matter, they're all degenerate sluts.
This cleared it up for me.
Albert says 'I DEFINITELY FOR 100% SURE KNOW ABSOLUTELY THAT BERNARD CANNOT KNOW FROM HIS NUMBER ALONE. I.E. THERE IS 0% CHANCE THAT HE WAS GIVEN A DATE IN THE MONTHS OF MAY OR JUNE BECAUSE THAT MEANS THERE IS A >0 CHANCE THAT HE COULD WORK IT OUT.'
>>43746181
>looking like that
>having boyfriends
They must suck the dick something fierce.
>>43746162
Lay that over with some stats about autism in Singapore, see if we get a match :^)
My point is either a die-hard nerd or an autist would care to waste time on these kind of tests.
>>43746234
Fucking this. Why are people not getting this?
>>43744056
They probably do problems just like this regularly.
Piss easy to solve if you know what to look for, even for a child.
>>43745812
This became viral here. It's a question in an exam for 6 year olds.
Chinks and their maths man.
>>43746156
Shit, I think that might be right.
>>43746285
90.
>>43744999
but Albert wouldn't know the date since he could have been told August and Bernard still would have known, so bernards statement couldnt have provided enough for albert to know the date
so do we just have shift to assume that albert knew the date and based on that figure out the month and day?
>>43744056
this is simple logic.
if schools would actually teach that instead
of stupid maths and formulas then people
would actually learn to solve things...
It's not too hard though.
>>43746285
87
>>43746285
It's a car park, not a sequence of numbers. There's no way of knowing the answer.
>>43746123
how did albert know at that point though
>>43746258
The key word is respectively, which I admit I didn't pay attention to when I first read it.
I wasn't aware that Albert was told the month, and Bernard was told the date, and in that instance June 16 or July 17 can be the correct answer.
>>43746285
87
The numbers are upside down
>>43746092
Bernand says at first he didn't know but now knows.. out of 5 possible answers so there are 3 unique numbers and 1 occurring twice so it's either 15,16,17 . saying this Albert can rule out August because it occurs twice so you are left with July 16
>>43746346
Hello :^)
>>43744056
This isn't a maths question, this is a test of patience to put up with being bombarded by names bullshit that has nothing to do with maths.
>>43746285
Damn chinks and their backward ass numbering systems
>>43746234
Actually all we can see is that he wasn't given an 18 or 19. 14 - 17 precludes no months whatsoever.
>>43744572
So wait... couldn't the people just count the number of people with a certain color of eyes and deduce the color of their eyes?
>>43746285
hahahaha 87 lmfao, clever chinks, look at me trying to find some elaborate formula.
>>43746285
Cause I will never get the answer.
It has to be 69
>>43746343
June 16 cannot be the answer. If Albert KNOWS that Bernard CANNOT know the date from just the day alone, then it cannot be in either May or June, because both of those have days which are unique to that month alone.
If Albert was told either May or June, he could not say with certainty that Bernard doesn't know the date.
Albert is told a month that does not have a unique date number
Bernard is told a non-unique number
Albert determines from the month with no unique dates that Bernard cannot determine what the full date is
Bernard, now knowing from Albert's statement regarding non-unique date numbers, compares that number with remaining dates to come to the conclusion about what the full date is and tells Albert as such.
How does Albert then logically choose between July 16 and August 15 or August 17?
>>43746362
>saying this Albert can rule out August because it occurs twice
what do you mean?
chinks do have a sense of humor.
Why didn't Cheryl just tell them her birthday?
Cunt.
You have been given the task of transporting 3,000 apples 1,000 miles from Appleland to Bananaville. Your truck can carry 1,000 apples at a time. Every time you travel a mile towards Bananaville you must pay a tax of 1 apple but you pay nothing when going in the other direction (towards Appleland).
What is highest number of apples you can get to Bananaville?
I don't understand any if this. They don't give enough info. The answer could be anything
>>43746156
>>43745418
It can't be August 17 at all because the conversation would have gone like this:
Albert: I don't know when Cheryl's birthday is and neither does Bernard.
Bernard: I didn't know but now I do know
Albert: ...I still don't know
it could also be August 15 by your logic
>>43746394
I thought this too. Until you follow my reasoning. Albert knows 100% for certain that Bernard can't know the date from number alone. 100% certain. The only way that's possible is if Albert knows that the month is not May or June.
>>43746444
fuckin road tax leaving me with... 2/3 of the product? Seriously fuck new Zealot.
/pol/ - Childhood math questions
>>43746444
>Your truck can carry 1,000 apples at a time
nvm then
Five pirates are parting ways after finding a treasure of 100 pieces of gold. The pirates decide to split it based on a vote. Each pirate, from oldest to youngest, gets to propose a plan on how to split the gold.
If at least 50 percent of the other remaining pirates agree on the plan, that is how they will split the gold. If less than 50 percent of the pirates agree, the pirate who came up with the plan will be thrown overboard. Each pirate is smart, greedy, and wants to throw as many others overboard as possible without reducing the amount of gold they get.
What plan can the first (oldest) pirate propose to live and get as much gold as possible?
>>43746444
None. Bananaville has placed an embargo on your apples.
We should have a thread like this every day. It was fun.
>>43746444
none
>>43746419
Because Albert knows the month.
If told July, he says 16th.
If told August, as would be the case in another scenario then he WOULDNT finally say he knew the date. We can deduct July 16th from the fact Albert CAN say the date for sure.
>>43744951
You would know about shitty grammar
>>43746444
1000 apples
1000 miles
per mile 1 apple is removed
so you would get 0 or 3?
>>43746527
3 probably, the last mile you're technically already brought it to bannaville.
>>43746520
Keep in mind you can drop apples off along the way, drive back (for free), and pick up the apples you dropped off when driving back toward Bananaville.
I know right.
>>43746444
>This is what libertarians actually believe
>>43746444
personally i'm against bananaville's immigration policy.. but zero
>>43746090
Those girls have a high chance of not being Singaporean.
They do have a high chance of being of Japanese descend though.
>>43746492
40 gold to the third oldest, 30 gold to the second oldest and 20 for himself
>>43746444
A possible strategy would be carrying max load apples for a mile, storing them there and getting the other apples over there too.
First you'd lose 3 apples per mile until 1002 apples are lost after 334 miles.
Remaining you have 1998 apples and 666 miles.
You repeat the same and lose 2 apples each time for 499 miles.
There remain 1000 apples and 167 miles.
Thus you end up with 833 apples.
>>43746542
>>43746523
>>43746586
>>43746444
500
