Bashny.Net
Children cope with this example in a couple of minutes, and adults think for hours, try to solve it yourself
Bashny.Net
Everything in our world is changeable. And even mathematics, with its theories and axioms, can be corrected. Each of the adherents of this or that theory tries to explain to their opponents where the logic of the task lies and why it needs to be solved this way. Today the editors of “Site” decided to look into one very interesting mathematical example. So, if you want to train your brain, join our equation lovers club.
While we are at school, what we study seems easy and simple to us. Of course, mathematics is not the favorite subject of most children. Who likes to constantly strain their brains with examples? Nevertheless, almost all secondary school students master basic knowledge. But over time, if we do not use this knowledge, it goes somewhere deep into our memory. And it seems that we have forgotten something forever.
In fact, our brain is so complex that we can’t even imagine all its capabilities. But scientists have already found out one thing for sure. Our brain never forgets any information. Unless, of course, it is damaged or constrained by some kind of disease. In a healthy person, the brain remembers everything in absolutely small details: color, smell, taste, emotions. It just works using the priority method. If some information is not needed in a given period of time, it is pushed into the far corner of memory. But it will definitely emerge at the right time and under the right conditions.
Where is the logic of the task? To have a good memory and remain active and healthy for a long time, the memory needs to be trained in the same way as the muscles of the arms or legs. Only these trainings are of a mental nature. The more you solve complex problems, solve crosswords or sudoku, the better your brain will work longer. So today we propose to do a little training of our brain and solve a simple example. At the same time, we remind you of the new method of performing actions, which we have already talked about. So don't put off your workout and start right away. And the example is very simple: 20 / (4 - 4 / 2) x 4. We’ll give you a hint right away: the answer should be an integer. We are waiting for answers in the comments under this post.
Do you still have difficulty solving similar examples, and your brain just can’t find the right solution? Then let's solve this equation together using the PEMDAS method. And the first thing we need to do is solve the part of the equation in parentheses, since the parentheses have number one priority. But in brackets we also have two signs, subtraction and division. Priority is given to division and then to subtraction. And that means we are left with 2 in brackets.
Then it’s much easier, and all we have to do is solve the equation. Moreover, the solution of this example occurs from left to right, since division and multiplication have the same priority in the PEMDAS system. So we divide 20 by 2, we get 10. And after 10 we multiply by 4 and we get the answer 40. And this is the only correct answer in this equation. The more you train your brain with equations like these, the more active you will be. Write in the comments whether you like solving examples and how you train your brain.
While we are at school, what we study seems easy and simple to us. Of course, mathematics is not the favorite subject of most children. Who likes to constantly strain their brains with examples? Nevertheless, almost all secondary school students master basic knowledge. But over time, if we do not use this knowledge, it goes somewhere deep into our memory. And it seems that we have forgotten something forever.
In fact, our brain is so complex that we can’t even imagine all its capabilities. But scientists have already found out one thing for sure. Our brain never forgets any information. Unless, of course, it is damaged or constrained by some kind of disease. In a healthy person, the brain remembers everything in absolutely small details: color, smell, taste, emotions. It just works using the priority method. If some information is not needed in a given period of time, it is pushed into the far corner of memory. But it will definitely emerge at the right time and under the right conditions.
Where is the logic of the task? To have a good memory and remain active and healthy for a long time, the memory needs to be trained in the same way as the muscles of the arms or legs. Only these trainings are of a mental nature. The more you solve complex problems, solve crosswords or sudoku, the better your brain will work longer. So today we propose to do a little training of our brain and solve a simple example. At the same time, we remind you of the new method of performing actions, which we have already talked about. So don't put off your workout and start right away. And the example is very simple: 20 / (4 - 4 / 2) x 4. We’ll give you a hint right away: the answer should be an integer. We are waiting for answers in the comments under this post.
Do you still have difficulty solving similar examples, and your brain just can’t find the right solution? Then let's solve this equation together using the PEMDAS method. And the first thing we need to do is solve the part of the equation in parentheses, since the parentheses have number one priority. But in brackets we also have two signs, subtraction and division. Priority is given to division and then to subtraction. And that means we are left with 2 in brackets.
Then it’s much easier, and all we have to do is solve the equation. Moreover, the solution of this example occurs from left to right, since division and multiplication have the same priority in the PEMDAS system. So we divide 20 by 2, we get 10. And after 10 we multiply by 4 and we get the answer 40. And this is the only correct answer in this equation. The more you train your brain with equations like these, the more active you will be. Write in the comments whether you like solving examples and how you train your brain.
