Chapter 47 Questions for Middle School Students?
After dealing with each other a few times, Zhang Gongzi no longer has self-knowledge and understands, the battle of words is definitely not Ye Xingyuan's opponent, and if he continues to entangle here, he can only bring humiliation on himself. I can only brush my sleeves and go, and wait for Ye Xingyuan to do the question!
The red paper was uncovered, Ye Xingyuan leaned over to look at the problem, but first heard a sound of surprise around him, because there was only one question, in the level design over the years, it was extremely rare to have only one counting problem.
Those who are familiar with the Oiran Conference know that there are generally at least 180 arithmetic questions like this, and a powerful sea of questions is used to test the ability to count, and then the correct rate is drawn to eliminate a large number of people. According to common sense, the first level is often the most difficult, and there is at least a six- or seventy-percent elimination rate to be able to control the number of people in the next two levels.
But this time there is only one question, could it be said that this question alone can make more than seventy percent of the scholars who participated in this Oiran Conference return home? This Ding Oiran is inevitably too underestimated by the people of Hanjiang Prefecture!
Ye Xingyuan was also surprised, and when he looked closely, he saw dense handwriting on a piece of white paper. I don't know if it was written by Oiran himself or by someone else.
"The heavenly court cattle are placed in the western suburbs, and the four colors are divided, black, white, brown and yellow, and they are divided into oysters. First of all, the number of white cattle is the total number of brown cattle plus half of the black cattle, and then one-third of the number of black cattle.
The number of black cattle is one-quarter of the number of yellow cattle, plus one-fifth of the number of yellow cattle, plus the total number of brown cattle. The number of yellow cattle is one-sixth of the number of white cattle, plus one-seventh of the number of white cattle, plus the total number of brown cattle.
In terms of the number of cattle, the number of white cattle, it is one-third of the total number of black cattle, plus one-quarter of the total number of black cattle. The number of black cattle is one-quarter of the total number of cattle, plus one-fifth of the total number of cattle. The number of brown cattle is one-sixth of the total number of white cattle, plus one-seventh of the total number of white cattle.
Let's ask the Heavenly Court Divine Cow, how many are there?"
The literal meaning of this topic, coupled with the rhythm of tongue twisters, can make people go crazy to watch! The scholars who came to the conference gasped, and many of the companions who were proficient in arithmetic turned pale. Although they haven't done the math yet, just by looking at this topic, they know that the amount of calculation will be extremely large.
If you can give a pencil and a few pieces of scratch paper at this time, Ye Xingyuan would have found a corner and squatted down to start the equation, and then began to draw circles and curse the questioner.
Where is the simplest arithmetic level in the imagination, what kind of messy problem is this? Ye Xingyuan originally thought that with such exclusive magical powers as "Ninety-Nine Multiplication Table" and "Two-dimensional Equation", it was enough to be proud of the crowd, kill all sides, and easily break the level.
The ideal is beautiful, but the reality is too cruel, Ye Xingyuan was speechless. He is a student of classics and liberal arts, a double master's degree in classical literature and Ming and Qing history, and is proficient in exegesis and phonology. But in mathematics, he really only has a middle school level. I may still remember some algebraic geometry in junior high school, but most of the math supernatural powers in high school are still given to the teacher.
If this kind of question is taken out, I am afraid that the math bully in high school will have to kneel, not to mention that his math score is at the peak of middle school, and it can be regarded as the middle level of his classmates at most.
A simple summary shows that there are eight unknowns in this problem, but only seven equations can be listed, which is obviously an indefinite system of equations.
Fortunately, most of the ancient math problem styles are like this, as long as you can find the minimum solution, even if it is completed, you don't need to think too much. It's just that this calculation is extremely complicated and complicated, and under the premise of having no tools in hand, I'm afraid that it will really take a day!
Ye Xingyuan was still looking at the topic in a daze, Ouyang Ziyu was already in a daze, she looked back at Ye Xingyuan, and asked weakly, "Can you do this question?"
At the level of Miss Ouyang, I am afraid that four operations with more than three digits can make her stunned, this kind of high-precision thing involving an indefinite system of equations, just looking at it makes her feel dizzy.
Lu Wei is quite confident, "My cousin is a genius in Tianzhong, he composed nine poems in one breath that day, and shook the entire school, what is this small calculation path?"
Ye Xingyuan smiled bitterly, what does poetry have to do with arithmetic? I thought that this was at most just some chickens and rabbits in the same cage and other topics, with the insight and general mathematical knowledge of later generations, as long as you calculate a little carefully, you will be able to stand out, who knew that this problem would be so domineering.
He thought for a while and instructed Lu Wei, "You go and get me a few blank pieces of paper and find a charcoal pencil." "In this case, it is certainly not realistic to rely on mental arithmetic, and since it has already come in, I have to try it anyway.
At this time, some people who started to calculate directly began to cry, "What kind of strange problem is this, it is so complicated?" and another person shouted, "If this is calculated, I am afraid that it is an astronomical number, and it will be counted until when!"
This is already a discerning person, who knows the difficulty of this topic, and can roughly estimate the difficulty of the calculation. More people were dumbfounded, and they didn't know how to start with this strange question, so they could only be in a daze.
The two people around Zhang Gongzi are the bookkeepers he invited from the largest trading house in Fucheng, and their abacus is exquisite. At this time, both of them were covered with sweat, writing with a pen in one hand, and flying with five fingers in the other, making the abacus crackle.
Although his hands are not idle, his heart is empty after all, and when he looks at each other, he can see the panic in each other's eyes. They thought they were proficient in arithmetic and had no opponents in this city, but they didn't expect to encounter an unprecedented problem in the arithmetic level of the Golden Autumn Oiran of Hanjiang Prefecture!
There are those who close their eyes and think hard, there are those who mourn, and there are those who feel that they can't leave on the spot. In contrast, the painting boat of the new Ding Oiran is clean.
During the Oiran Conference, Miss Ding did not have to greet the guests or show her face, she just had to rest quietly in the cabin and wait for the final result.
She sat behind the amber beaded curtain, stretched out her half-cut forearm as white as jade, and pinched her long green fingers to pick up a cup of fragrant tea on the table, took it to her mouth and blew it carefully, and after taking a sip, she asked, "How is the first level of arithmetic?"
Outside the bead curtain, there was a red-clothed girl with tight sleeves and long jackets, listening to Miss Ding's inquiry, she hurriedly bowed down and reported, "The news came just now, everyone is at a loss, I'm afraid that Miss's topic is really too difficult." ”
In fact, if the wind is quiet on the river, you can prick up your ears and listen carefully, and you can even faintly hear the complaining sound of the first boat. Talented people from Hangang Prefecture and several nearby prefectures and counties gathered here, but no one was able to face this problem calmly.
Miss Ding said lazily: "It's just half a question, what's so difficult, there is really no one in this Hanjiang Mansion, if there is a master who borrows the magic power of heaven and earth, you can calculate this topic clearly in a stick of incense." ”
When she came up with the question, she had deliberately removed the lower half, otherwise the final result would be countless times larger, which is really not the range that these people can calculate today. In order to make the level relevant, she had to cut down on the difficulty.
Rao is like this, in the entire Hanjiang Mansion, there are not too many people who can calculate the answer exactly by hard calculation, not to mention that there is a time limit.
The red-clothed maiden flattered: "Miss, Tianzong is a genius, how can these ordinary people be compared? No one pays attention to this way of arithmetic, and it is not just a problem of the Hanjiang Mansion. ”
Miss Ding was a little excited, "That's it, if there is any news, come back to me." The red-clothed girl agreed, turned around with small steps, and Miss Ding put down the teacup, retracted her arm into the bead curtain, and sat silently.
On the first big ship, Lu Wei had already found white paper and charcoal for Ye Xingyuan, and this ship was well prepared, and all kinds of calculation tools could be borrowed. However, most people choose abacus, and only a few use pen and paper to calculate.
Ye Xingyuan took the charcoal, frowned, and scribbled like a ghost drawing. Set the unknowns, the equations, this has not been touched for a long time, for a while, unfamiliar, charcoal is not used to use, and it is even more puzzling to draw.
Ouyang Ziyu was still interested at first, staring at it for a long time, but in the end, she really couldn't see any fame, she only felt bored.
She saw that others were either thinking hard or helping to calculate, only she and Lu Wei stared, and she couldn't help but be a little embarrassed. Then he commanded Lu Wei and said: "You go and help your cousin, you are also a scholar, you should understand these things, right?"
Lu Wei waved his hand again and again, and said in fear: "How can I compare with my cousin? My cousin writes and draws, but I don't understand anything, and I want to find someone to ask for advice." ”
What Ye Xingyuan wrote, it seems to be a word but not a word, a painting is not a painting, not to mention Lu Wei, even if it is all the scholars on the ship, including a group of arithmetic masters, it is impossible to understand it. Perhaps in their eyes, those mathematical symbols may be the same as drawing spells
Ye Xingyuan relaxed at this time, and in a trance, he seemed to have returned to his youth in middle school, beside his teachers and classmates, struggling to do math problems.
He knew that he was not a genius in arithmetic, but he was only patient and careful, as long as he could find a way to solve it step by step with stupid methods, he would always get the right result.
What's more, in this world, the method of solving equations can be regarded as a unique power, and it is not much more clever than the method of strong calculation, and it cannot be regarded as a stupid method.
Ye Xingyuan patiently substituted the elimination element, calculated step by step with peace of mind, gradually ignored the noise in his ears, and devoted himself to this complicated algorithm.
Time flickered for half an hour, and by this time, the most outstanding arithmetic masters had also fallen into a bottleneck. In fact, the method and principle of this question are not much different from the problems recorded in the "Nine Chapters" and "Unification", the only difference is that the conditions are more complex, so the order of magnitude that needs to be calculated is also larger.
The title in "Chapter Nine" is only two or three yuan, and the calculated order of magnitude is at most hundreds or thousands, but this question is enough to have eight yuan, and the rough estimate of the calculated order of magnitude is also above millions, or even tens of millions!
Under the backdrop of a group of people gritting their teeth, or being stunned, or red-faced, Ye Xingyuan wore a green shirt and sat on the ground, concentrating calmly, which was a little prominent.
The red-clothed girl stood at the door of the cabin, and saw the very eye-catching Ye Xingyuan, and couldn't help but be very curious, and looked at him from a distance.