Board 8 > This Math Question is SO HARD that only a 2% of People can get it!! Can you????

(+) Yeah! (+)

This is one of those questions that will stump a massive majority of people as no one will get or even understand but for those math geniuses, they can get the answer if you just use your mathematical skills.

This is a question from asia where someone was working in a math book and came across this very difficult question that has people stumped...but can you get the answer?.

https://i.imgur.com/a6WtLYl.jpg
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I don't know what the actual answer is but I know 5 isn't wrong

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There are actually a few different answers depending on how you want to solve it.

I'm assuming they meant 15 as the actual answer but there's at least 3 numbers that work off the top of my head.

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I see 15 as working but not sure why it's fundamentally better than 5. I feel like I'm seeing 15 for a different reason than you are

When you use obtuse language like "pattern" though yeah you open a lot of doors

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I see 15 but I don't see 05
15:
The left and right side are equal when you add them up
4 + 7 = 11
5 + 6 = 11
9 + 8 = 17
10 + 7 = 17
11 + 12 = 23
23 - 8 = 15

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4 5 (6) 7 8 (9) 10 11

and who gives a damn about the bottom row.

I'm sure it's not what was intended, but it's what I see.

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Lopen posted...

When you use obtuse language like "pattern" though yeah you open a lot of doors

There's no criteria given for the pattern, so you can come up with any inductive reasoning and claim it's correct, and nobody can tell you otherwise. Therefore I'm sticking with my answer, even though I concede that 15 is a better response.

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Another way to get 15

4 + 5 + 6 + 7 = 22
7 + 8 + 9 + 10 = 34
34 - 22 = 12
34 + 12 = 46
46 - 12 - 11 - 8 = 15

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Dancedreamer posted...

I see 15 but I don't see 05

Here was my 05 logic

Top row = n
Bottom row left = n+3
Bottom row right = n+1
Who the hell cares about horizontal relationships!?!?

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Here you are discussing those two particular answer choices when the image clearly states that the missing number is 2. It was staring us in the face the whole time. In support of this logic one need merely look nearby where there is an X. That is what you put on a map when you want to find something once lost. All of the other numbers there are clearly found and organized, but the 2 is far away awaiting future discovery.

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I found 5 before I found 15.

My mind prefers 5 even though I will concede they both fit potential patterns.

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azuarc posted...

4 5 (6) 7 8 (9) 10 11

and who gives a damn about the bottom row.

I'm sure it's not what was intended, but it's what I see.

That's what I was thinking

That they messed up and that the 8 in the last box should be a 13. Then this pattern would hold: lowest # in top left, number increases by 1 moving clockwise, corresponding square in each new iteration is +3

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The first answer I came to was 5, but I like 15 a little better, but also they both technically make a pattern so maybe this is just a bad question?
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@Full_Throttle is there an actual answer to this that youre aware of ?
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15 is not a better response.

The pattern looks to be the top left square is 3 less than the bottom left square and the top right square is 1 less than the bottom right square.

In which you get 5.

If you do it to the right squares you would get 10 to fit the pattern.

For the people adding the vertical rows and saying the left has to equal the right thus it is 15... there is a reason it isn't so.

Why add the vertical rows to be equal to be the pattern? Why not the horizontal rows? In which the top is always 4 less than the bottom row. Thus, the answer again would be 5 to make it 4 less than the bottom row.

Thus, you get 5 for 2 answers, 10 for 1, and 15 for 1. 5 is the best answer.

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bad question

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im so hard that only 2% of people cant get it

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5 is a completely defendable answer so I guess Ill go with that?

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x = ?

Solve for x. Only 2% of people will get this question right
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NFUN posted...

x = ?

Solve for x. Only 2% of people will get this question right

I'm impressed 2% would get that right. Or really, anyone at all.

Especially when it's 6.19284710581935719

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The first 2 cubes follow a clear pattern. So of course the 3rd cube ruins it with an 8.

I voted 10 just because but it's probably wrong. But then again I doubt there's a good answer to this mess.
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I don't know what the answer is, but I guessed 9 since its next to the number 8 and all the other ones had consecutive numbers. (although there is no 10 in the last one)

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I came up with 5 and 7

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MoogleKupo141 posted...

@Full_Throttle is there an actual answer to this that youre aware of ?

answer

https://theindependent.sg/math-question-in-primary-1-assessment-book-stumps-netizens/
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mrduckbear posted...

answer

https://theindependent.sg/math-question-in-primary-1-assessment-book-stumps-netizens/

I don't know what is dumber... the answer or the person who made the problem. If you wanted that answer, you needed to explain what process you wanted to be done to get it.

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mrduckbear posted...

answer

https://theindependent.sg/math-question-in-primary-1-assessment-book-stumps-netizens/

That explanation of the answer is straight up wrong... It implies that the 6 in the top right of the middle box should be an 8 instead, as if it's a typo.

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this sort of question is always bullshit, because there can be multiple patterns or relationships within such a small set

i accidentally happened upon the 'correct' answer, but i also wouldn't put this problem on any actual test

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Waluigi1 posted...

That explanation of the answer is straight up wrong... It implies that the 6 in the top right of the middle box should be an 8 instead, as if it's a typo.

exactly, I reject its premise

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Also that article said only 50+% of people got it wrong so where did Fullthrottle come up with 2% lol

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I suppose there's an unwritten, implied requirement that the pattern must include all the numbers shown. Without that you can come up with multiple solutions by just ignoring some of the numbers. Logic problems always need precise language as to not be ambiguous. Math nerds, is there some specific mathematical definition of "pattern" that would clear up any confusion?

Waluigi1 posted...

That explanation of the answer is straight up wrong... It implies that the 6 in the top right of the middle box should be an 8 instead, as if it's a typo.

It's an 8 in the original problem. It is a typo.


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DeepsPraw posted...

I suppose there's an unwritten, implied requirement that the pattern must include all the numbers shown. Without that you can come up with multiple solutions by just ignoring some of the numbers. Logic problems always need precise language as to not be ambiguous. Math nerds, is there some specific mathematical definition of "pattern" that would clear up any confusion?

yes

Something along the lines of "A pattern is a consistent rule that must include all the numbers shown. You cannot come up with multiple solutions by just ignoring some of the numbers"
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NFUN posted...

Something along the lines of "A pattern is a consistent rule that must include all the numbers shown. You cannot come up with multiple solutions by just ignoring some of the numbers"

even with this there's multiple ways each for both of the popular answers to fit

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22 34 46
15 <_<
The box before it would be 1 2 3 4 and equal 10

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Xuxon posted...

even with this there's multiple ways each for both of the popular answers to fit

That's correct
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Pretty sure I've done math problems that far less than 2% of people can get, come back with something worth my time.

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Xuxon posted...

even with this there's multiple ways each for both of the popular answers to fit

can you give examples? I'm lazy and/or stupid. I can see 15 with the answer key, but that's it

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13.

Top left, Top Right, and bottom left are always sequential
Each box only contains ONE instance of a number from the box that proceeds it. The third set has an 8, thus eliminating 10. Therefore it must be 13.

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