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I was tricked.

A): Because 25% is listed as an option twice, meaning it occurs 50% of the time, randomly choosing an answer causes 25% to turn up 50% of the time. The answer here and in D) is 25%, not 50%. This answer is wrong.

B): The answer 50% only turns up once. Since there are 4 answers, it turns up 25% of the time. The answer B) is 50%, not 25%. This answer is also wrong.

C): This answer is wrong because none of the options turn up 60% of the time.

D): This answer is wrong for the same reason that A) was wrong.

Adding an answer E): 0%, would seem right, but in fact wou

creating your own choice is the only answer

No, those are the kind of people a shot to the head is made for.

Those are the kind of people the lottery is made for.

a.) 50%

b.) 25%

c.) doesn`t matter

d.) 50%

Now

50% appears 50% of the time, not 25%

and

25% appears 25% of the time, not 50%,

But now

if you choose 25% it will be correct

and

if you choose 50% it will still be correct.

Now this blows my mind even more because it is still a paradox. :|

It seems everybody was correct...

Hot dang, who ever wrote this is a gosh dang Houdini!!!

if you choose (A or D), you actually Get B(50%) and if you choose B you actually get (A or D)(25%). The proof using really big numbers in C#...

char[] answer = {`a`, `b`, `c`, `d`};

int i = 0;

int count = 0;

Random r = new Random();

char guess = `f`;

for (i = 0; i < 10000000; i++)

{

guess = answer[r.Next(4)];

if( guess == `b`)

count++;

guess = `f`;

}

Console.Write(count);

Console.Read();

if (guess = `B`) you get 25% of the time

if (guess = `a` || guess = `d`) you get 50%

which blew my mind!!!

Written in C#.

In a nut shell.

When you select 50% it only appears in 25% of the choices.

Yet when you select 25% it appears in 50% of the choices.

What limits you to only those four choices? Too many assumptions that the answer is in front of you. It doesn`t say "choose from below," or "choose from one of these."

It is a trick. You cannot answer the question - thus the answer cannot be 0%, because that is a certain answer. The answer is undefined. Even if there is a correct answer, it is unknowable.

Why do you assume that? What in the question limits your choices to those listed? Everyone is conditioned to see A, B, C, D and assume one is the answer. That is the mistake. You are all reading too much into it - I did it to. "Well, if I choose A, there are two so its 50%, so can`t be A, or D, or, um, B...hmmm."

The multiple choice selections are irrelevant and meaningless - again, why only choose those? - tricking you into looking for meaning in them.

See, there actually is no "question." This is more philosophical than logical. What is the right answer? There COULD be a "question" in the mind of the author, and there is some small chance you could randomly choose the answer from the ether, but you simply cannot deduce the probability based on the information given.

The answer is *UNDEFINED*.

Correct Answer.... "A or D" :)

The answer is *UNDEFINED*. Zero is a definate answer, but quite simply one cannot know what the "question" is.

This is not a question that can be answered. Ignore the multiple choices - nothing in the prompt limits you to these four choices. The question has no answer that can be determined with logic.

This is non-sensical. It is not even a paradox. It is like asking "How many flerpas do dipady triznos?" *UNDEFINED*

I guess..

@Jendrian "one of the answers has to be correct" ~ this is where you failed.

You have 50% chance to pick 25%

you have 25% chance to pick 50%

you have 25% chance to pick 60%

The correct answer must be the one in which your % chance of picking it matches its declared value.

None of those answers match the actual % chance you have to pick an answer, hence the answer is 0.

You DO realize, of course, is that basic argument is "50% is the correct answer because the correct answer is 25%"?

@gerry1of1 See what i mean with:

The answers provided can be correct or can`t be. it`s your own insecurity that tells you that it can`t be and that there has to be a correct answer in which case you enter the paradox.

you are alway`s right. becuase there is no evidence to suggest you are wrong.

there is an probability and a chance of a right answer, and a probabilty of a wrong answer,

the question can be answered in more way`s then 1, both on the linguistic side and on the mathmetical side, which means that there is a probability of a right answer, the chances of being proved wrong are irrelevant.

if we each build the exact same wooden house,

and we need calculate our sawcut, you could work out the probability of bieng wrong.

i could assume i was right, err, on the positive side, make my cut, if lucky it fits if not i cut again, but my house will be ready, whilst your paradoxal excursions

but, what is the function of the comma in grammer?

if this definition is "Use a comma to separate the elements in a series (three or more things)"

then do we get closer to reaching an understanding of the question asked?

if we can agree on the question asked then we could perhaps also agree on a solution.

nope, you are asked what the chance of being correct is

so ... the probability is 1/4, your chances of picking that answer is 2/4 and thus 50%

But B isn`t the right answer.

Take one step less. "if you choose an answer at random"

leads you to 1/4 or 25%.

"what is the _chance_ of picking the right answer"

since 25% percent is present twice, it`s a 50% chance of picking the right answer at random.

As said before the trick is not in the mathmatics, but in the linquistics.

that is stupid, one of the answers has to be correct, and the probability of each of them is 1/4th of being correct all the time

So even though the probability is 25%, the answer is any of the 4

"The chance you are correct is 0%

Reason:

*When choosing answer A, you assume 25% to be correct.

This means B and C are not correct and D is correct too.

Thus, the correct answer would be 50%.

This means A is not a correct answer

*Same logic applies to answer D.

This means D is not a correct answer.

*When choosing answer B, you assume 50% to be correct.

This means A,C and D are not correct.

Thus the correct answer would be 25%.

This means B is not a correct answer.

*When choosing answer C, you assume 60% to be correct.

This means A, B and D are not correct.

Thus the correct answer would be 25%

This means C is not a correct answer.

** In summary none of the answers is correct.

So the chance you will be correct is 4* 1/4 * 0 = 0%

JUST A QUESTION OF LOGIC

THIS POst should not be on IAB, as it isn`t boring at all!!

Take that one more step:

The probability that you pick the right answer is 1/4, so the answer is 25% since there are two correct answers the chance is 50%. But the correct answer of 50% only appears once (i.e. 25% of the time) so the correct answer is 25%, but the correct answer of 25% appears twice (i.e. 50% of the time) so the correct answer is 50%, but the correct answer of....Ad infinitum.

the probability that you pick the right answer is 1/4, so the answer is 25% since there are two correct answers the chance is 50%

thats the probabilty side of it, otherwise you come to the philosophical side of it which bring you to my previous post but appearantly they are to long.

@gerry1of1 Brief enough for ya?

Chance of rain in the Sahara desert...50%

Chance you`ll die being struck by a meteor...50%

Chance you`ll be impregnated by an extra-terrestrial and give birth to a child who will become the President in 50 years...50%

my reasons, the human mind

there is a greater probability that when someone doesnt know a multiple choice answer they go for C.

or will go for one of the middle answers

very very rarely do people pick the 2 outer answers.

theere is a very old psychological trick where if u ask someone to just think of a number between 1-10 60% of people will pick the number 7. people tend to think the outer edge answers are too obvious so in trying not to fit in with the "regular" people they go for what they beleive to be an obscure number when in actual fact they are following the crowd they so desperatly want to get away from.

to sum up

mathematically its either A or D - 25%

but psychologically its more like C- 60%

Without consideration to the answers provided and selecting randomly, the correct answer is 25%.

Since this test cheats and offers the 25% value twice, the answer may seem as though it would be 50%. If it were 50%, then the odds of picking 50% are 25% STILL.

So 25% is there twice, 50% chance of picking 25%, plus the chance of picking 50%, which makes 3 of the answers correct.

75% chance of picking A right answer, which is not on the test, therefore the odds of finding the correct answer of 75% is non existant, and thus the correct answer is 0%!

NEVER GO IN AGAINST A SCICILIAN, WHEN DEATH IS ON THE LINE! Hahaha, hahaha, haha.....*dead*

Theres a complex solution for it, but thats the right answer regardless.

The answer can never be B, or C. There is only 1 correct answer and 4 choices, 2 25%s choices are still individual answers.. the person picking at random will ONLY pick 1 answer.. and ONLY has a 25% chance.... 1 of the 4 answer is correct, not 2. The trickery is for you the person reading and not picking picking at random.

MrOrange [quote]"and that my opposing friend is the trick in the question." [/quote]

Told`ya it was a trick question. But it`s taken you 4 posts and a dozen paragraphs proving me wrong before you agreed with my conclusion.

Brevity - get some.

[this statement is true until proven wrong.]

There is nothing wrong with the above statement, you could only say that it is wrong becuase it claims to be true _until_ it is proofed _wrong_, which alows you to think it can be wrong but you can`t prove it is wrong hence it is alway`s true.

it`s a linguistic paradox which holds no meaning other then what you give it. if you think it can be wrong, you will search in vain for that argument and you enter the paradox, accept that it is true and you do not.

if the answers provided to the question are not correct, it means you can`t answer the question with those answers so if i say that my answer is right, the answers provided can`t be used to say i am wrong becuase they are. hence i am right.

as long as you think that there is a right answer among the wrong answers you will be wrong.

if i look in a mirror, i can see two of me, but i know there is only one of me.

if take the sentence apart, This question,

that excludes others so averages do not count.

"if you choose an answer at random"

where does it say that i have to pick one of the below?

and that my opposing friend is the trick in the question.

No, Orange, it`s not insecurity on my part. If the question is the odds of getting it right, and the answer to that is zero, but zero is not an option, then it`s a trick question.

To answer your question - How many of "me" in the mirror... None, I`m a vampire.

To make this easier, let`s just say that both A and D are considered correct, so the answer is B, 50%. Why? What`s the probability of choosing the correct answer out of 4 options? 25%. Consider that 25% shows up twice, so the answer has to be 50%, because you have a 50% chance of choosing either of the 25%`s.

You will always be wrong... not because the question doesn`t have an answer. Just because you`re a failure. Now drop your math class and go take gym again.

Incorrect, this is what happens to mathematicians after a night of heavy drinking.

Remember: "Don`t drink and derive".

Dammit you are right. I had this whole retort ready but it kept falling apart.

Yeah it`s circular.

This question, that excludes averages.

The answers provided can be correct or can`t be. it`s your own insecurity that tells you that it can`t be and that there has to be a correct answer in which case you enter the paradox.

you are alway`s right. becuase there is no evidence to suggest you are wrong.

oh and Gerry1of1, if you look at yourself in a mirror, how many of you are there?

inb4 paradox: Not necessarily. It`s only a 25% of picking a correct answer if you assume true randomness to your distribution, so unless the answer is being picked by a process involving radioactive decay it is not truly random.

MrOrange, we gotta stop meeting on oposite sides of topics.

Answer - it`s a trick question.

You`d think 1 in 4 is 25% but A & D are 25% so that makes it 2 in 4 which is 50%. But B is 50% so we`re back to 1 in 4 or 25%.

Circular with no answer.

the avarage results of guessing is roughly 50%

if you have a slight idea about said question, it is raised to 60%

then you take a probability calculator, give it a nice cup of hot tea.

and This is the defining factor. so the percentage becomes irrelevant becuase you are alway`s right. normality is now restored, anything you can`t cope with is therefore your own problem.

Normally in 4 answer questions, you have a 25% chance of getting it right. However, because two of the answers is 25% then that answer becomes void.

So A and D are not the correct answer. You only have a 25% chance of choosing B and a 25% of choosing C. However, 50% is not the correct answer, and neither is 60%.

So you might think, "Oh, there is no correct answer listed here. So the answer must be 0%". And you`d be right. However, listing 0% as an option would change the answer to the question. As such, the possibility of guessing 0% would be more than 0%.

It`s a trick question with no answer. (But really the answer is 0%, unless the option of 0% is given).

Unless they`re all wrong. Oo;

- What percentage of I-A-Bers can answer this? You may now strap on your mind f*ck helmet.