 # Only a person with a high IQ will be able to solve this calculation

Logic challenges are known to all, some of them are shared on the web between users with the same passions and contribute to making a viral post. This is what happens with challenges like the one we bring you today, which allows you to test your intelligence and intuition at home.

Is not easy? Concentrate and try to challenge your friends or colleagues with the riddle of these numbers that seem incomprehensible to you. We warn you: only a few people are able to solve this riddle, so don’t be discouraged if you can’t solve it.

## The brain of a mathematician: a specific brain?

You may know this, but the ability to understand mathematics is studied by science. In fact, researchers have wondered if math teachers and arithmetic geniuses might be born with a biological advantage.

To explore this possibility, a study sought to determine whether a person’s math skills were associated with concentrations of two key neurotransmitters involved in learning. Cognitive neuroscientists at the University of Oxford in the UK examined levels of GABA and glutamate in the brain to see if these neurotransmitters could predict future math skills. GABA and glutamate are two natural amino acids that perform complementary functions: the first inhibits or reduces the activity of neurons or nerve cells in the brain, while the second makes them more active. Its levels fluctuate throughout life.

We’ve also attached the solution, but don’t cheat, just read it after trying to answer!

Most users who try to fix it don’t give the correct answer. And those who did had an IQ above 140,

## Which is the answer :

As you can see in the attached image at the top of the page, today’s challenges include a series of ties that, at first glance, seem crazy.

Logic is obviously in the mind of the puzzle creators and it’s really up to you to figure it out!

## Method number 1

The first method is to add the result of the previous operation to the next. We get like this:
1 + 4 = 5
5 + (2 + 5) = 12
12 + (3 + 6) = 21
With this method, we end up with: 21 + (8 + 11) = 40 so? = 40

## Method number 2

In this second, more scientific method, it is suggested that a multiplication be added to the operation. More exactly than it is necessary, in addition to the sum, to multiply the second digit by the first. We get like this:
1 + (4×1) = 5
2 + (5×2) = 12
3 + (6×3) = 21

With this method, we end up with: 8 + (11 x 8) = 96 so? = 96

It could just be that there are two correct answers. Except according to Randall Jones, there is only one. So which one is correct?

## If we use method 1

1 + 4 = 5
5 + (2 + 5) = 12
12 + (3 + 6) = 21
21 + (4 + 7) = 32
32 + (5 + 8) = 45
45 + (6 + 9) = 60
60 + (7 + 10) = 77

If we calculate the last operation, we are left with: 77 + (8 + 11) = 96 and not 40 as at the beginning.

If we use method 2

1 + (4×1) = 5
2 + (5×2) = 12
3 + (6×3) = 21
4 + (7×4) = 32
5 + (8×5) = 45
6 + (9×6) = 60
7 + (10×7) = 77

The last operation, we find: 8 + (11 x 8) = 96

So: If both methods can be considered correct, the only correct answer is => 96

* Presse Santé strives to transmit health knowledge in a language accessible to all. In NO CASE, the information provided can not replace the advice of a health professional.

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