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You can never answer this question correctly. If the correct answer is 25% there’s a 50% chance you guess correctly but that would make the 25% wrong.
But if the answer is the 50% then it implies that 25% is correct which implies that 50% is wrong.
We reach a contradiction for both 25% and 50% making the correct answer to make the whole statement truthy 0%.
I would think a b c d so 25% O he made a mistake znd forgot to take the bubble answer out. Now we only can pick between aord b c so it would be 33%
Seems my logic is wrong iff i read the rest
Any answer is correct as long as you don’t pick it at random. I’d choose (a) because I’m too lazy to read the other options
Great! I’ll hand this to my daughter to annoy her co-students who struggle with probabilitiy ;-)
This can also be used a great example of proof by contradiction: There is no correct answer in the options. Proof: Assume there was a correct answer in the options. Then it must be either 25%, 50% or 60%. Now we make a case distinction.
(A) Assume it was 25. Then there would be two of four correct options yielding in a probability of 50%. Therefore 50 must be the correct answer. -> contradiction.
(B) Assume it was 50. Then there would be one of four correct options yielding in a probability of 25%. Therefore the answer is 25. -> contradiction.
© Assume it was 60%. Since only 0,1,2,3 or 4 of the answers can be correct the probability of choosing the right answer must be one of 0% 25% 50% 75% or 100%. -> contradiction.
Because of (A), (B) and ©, it cannot be 25, 50% or 60%. -> contradiction.
Cheeky answer - the correct answer is a superposition of 25% and 50%, thus you answer it as a multiple choice question
©
because of copyright?
My client renders this as ( c )
It was only the next day that I returned to this post realising that “this question” isn’t even defined.
0%
The only winning move is not to choose
Yeah option b should definitely be 0% for added fuckery
The answer is clear
When in doubt, C it out.
I choose 75%
If you’re choosing the answer, then there is 100% chance of being correct. Since none of these answers is 100%, the chance is 0%.
That logic would only hold if I wasn’t dumb as rocks.
🤯
Thanks for making me laugh all alone in my car before heading in to work. I wish I could give you an award. Cheers!
This is a conundrum wrapped in a turducken, swaddled in nesting dolls.
lol chill out there buddy it is only self-referential once. maybe twice.
I’m not certain, I think it’s an infinite loop.
I.E. If the answer is 25%, you have a 50% chance, if the answer is 50%, you have a 25% chance, if the answer is 25%, you have a 50% chance…
The only way out is to choose 60% to accept defeat
Haha, I think they should have made that option 0%, to further the paradox
Yeah, that’s right. https://en.wikipedia.org/wiki/Paradox
B.
This is a multiple choice test. Once you eliminate three answers, you pick the fourth answer and move on to the next question. It can’t be A, C, or D, for reasons that I understand. There’s a non-zero chance that it’s B for a reason that I don’t understand.
If there is no correct answer, then there’s no point hemming and hawing about it.
B. Final answer.
I love this, it shows how being good at (multiple choice) tests doesn’t mean you’re good at the topic. I’m not good at tests because my country’s education system priorities understanding and problem solving. That’s why we fail at PISA
You think like I do. Bet you test well.
Entertaining response but I disagree.
I’m going to say that unless you’re allowed to select more than one answer, the correct answer is 25%. That’s either a or d.
By doing something other than guessing randomly (seeing that 1 in 4 is 25% and that this answer appears twice), you now have a 50% chance of getting the answer correct. However, that doesn’t change the premise that 1 in 4 answers is correct. It’s still 25%, a or d.
That’s an interesting perspective. The odds of correctly guessing any multiple choice question with four answers should be 25%. But that assumes no duplicate answers, so I still say that’s wrong.
I’m going to double down and say that on a real life test, this would likely represent a typo. In such case, I think you could successfully defend a 25% answer while a 60% answer is just right out the window, straight to jail.
The typo makes the answer incorrect. The whole question would need to be thrown out.
But some tests award bonus points if you get the thrown out question right by answering what it should have been!
Fair enough
You chose A, C, and D, so you have a 100% chance.
Nice logic; poor reading comprehension.
Does better reading comprehension get you a better answer?
No of course not, but the question is more important to the answer than the “correct” answer.
Not in a multiple choice test
This isn’t a test. It’s a logic puzzle.
It’s not a puzzle. It’s just wrong.
“Which of the following is a mammal:
A) rock
B) time
C) verb
D) Enui”Is not a puzzle.
Based on previous guy’s logic: D.
I know A, B, and C are definitely wrong, but I’m not sure I fully understand D. So it’s D and move on.
Reality is I make a note and discuss with the teacher if they don’t notice themselves when tests come back.
The question is malformed and the correct answer isn’t listed in the multiple choices. Therefore the correct answer is 0%
If only one of the 4 options said 25% would it still be malformed#
No. The scenario asks you to consider a random selection, but the solution in that case is a certainty.
Loaded dice
It’s probably graded by a computer, and a) or d) is a fake answer, since the automated system doesn’t support multiple right answers.
I’m going to go with 25% chance if picking random, and a 50% chance if picking between a) and d).
If it’s graded by a human, the correct answer is f) + u)Many systems do allow multiple correct answers.
