Chapter 17: Mathematical problems that stumped the entire Tang Dynasty (Happy Women's Day)
This student really aroused Wang Xiaotong's curiosity.
Wang Xiaotong decided to test the prince with several difficult questions to see how far he had studied arithmetic.
As soon as Li Min saw Wang Xiaotong's expression, he guessed what he wanted to do.
Li Min didn't want to be bored with those childish questions.
Therefore, before Wang Xiaotong could open his mouth, Li Min decided to strike first.
Li Min couldn't help but ask: "Master, when the student was studying arithmetic, he encountered a difficult problem. Could you help the student solve the problem?"
After hearing Li Min's words, Wang Xiaotong couldn't help but smile.
This prince is quite interesting.
I haven't even taken the exam for him yet, but he has taken the exam for me as my husband.
Well, let me see what kind of problems he can cause.
Thinking of this, Wang Xiaotong couldn't help but smile and asked: "Okay, I don't know what kind of problem your highness has encountered. You might as well tell it and let me help you solve it."
Li Min couldn't help but said: "The question is like this. It is known that there is a team one hundred feet long, and the herald is standing at the front of the team. At this time, the team is moving forward at a constant speed, and the herald is moving from the front to the row at a constant speed.
tail."
"When the herald reaches the end of the row, he turns around and walks forward at the same speed. When the herald catches up with the head of the row, both sides stop at the same time. At this time, the team walks forward a hundred feet. Ask,
How far did the herald travel?"
After listening to Li Min's question, Wang Xiaotong couldn't help but frown and start thinking.
Next to him, Cheng Chuliang couldn't help but quietly asked Yuchi Baoqi: "What is His Highness the Sixth Prince talking about? Why can't I understand?"
Yuchi Baoqi said with a dark face: "Don't say anything, or be careful of the master hitting you."
Well, okay, actually Yuchi Baoqi didn’t understand what he was talking about either.
On the other side, Fang Yiai asked Li Tai the same question.
However, Li Tai was also thinking hard about this question and ignored Fang Yiai at all.
Li Tai was both civil and military, and had always been favored by Li Shimin, who thought highly of himself.
He didn't believe that a math problem given by his former idiot sixth brother could catch him.
But this question is really difficult.
He could understand the question and felt that there must be a definite answer to the question.
But the clues given were too few, let alone solving the problem. Now he didn't even have an idea of how to solve the problem.
The more this happened, the more Li Tai thought hard and his brows furrowed into a "Chuan" character.
Their arithmetic teacher, Wang Xiaotong, was immersed in this problem. Unknowingly, he had stepped onto the podium and started to draw images with strokes and sort out the steps to solve the problem.
After a while, there was not enough manuscript paper, so Wang Xiaotong walked out directly with the finished manuscript paper.
As soon as Wang Xiaotong left, Li Min packed up his textbooks and prepared to finish class.
Cheng Chuliang pulled Li Min and asked: "Your Highness, why are you going? If the gentleman doesn't see you when he comes back from solving the problem, you can just wait and get slapped tomorrow."
Li Min smiled slightly and said: "Don't worry, Master will not be able to solve this question today."
Cheng Chumo asked suspiciously: "That's Master, are you sure Master can't figure it out today?"
"certainly."
While talking, Li Min had already packed up his textbooks and walked out.
Cheng Chumo gritted his teeth and followed Li Min out.
Anyway, even if the master comes back, he won't just skip class alone, and everyone will be punished. Anyway, there is a prince to keep him company.
Li Min is really sure that Master will not be able to figure out the answer today.
This question is a famous difficult question.
Even in later generations, it would be considered a small problem.
At least you need to formulate a quadratic equation in two variables or a linear equation in three variables to be able to solve it.
It can be said that in the entire Tang Dynasty, there were only a handful of people who could solve this problem.
And even if they could solve it, they would have to do it through hard work, and it would definitely not be possible to solve it in a short period of time.
Before the two of them left the school, Yuchi Baoqi, Qin Huaiyu and others followed them out.
Cheng Huailiang couldn't help but said to Li Min: "Your Highness, where is the number one noodle in the world? Go and get me five packets."
Huo, this guy didn't forget about instant noodles.
Li Min said to Cheng Huailiang: "Just wait here for a moment, and I'll get it for you right away."
After finding a deserted place, Cheng Hualiang turned on the system directly.
But when he saw the price of instant noodles, Li Min was dumbfounded.
Because he suddenly discovered that the price of instant noodles had actually increased to 0.5.
This is the same as the price he sells it for. As a middleman, he doesn't even make a penny.
Li Min couldn't help but asked angrily: "System, please tell me why the price of instant noodles has suddenly become so expensive? Five hundred coins per pack, why don't you grab it?"
Then, Li Min listened to the system's mechanical answer: "Please note that if the host uses the products in the mall to make profits, the mall will increase the price simultaneously. The system prompts that the final right of interpretation belongs to the system."
Damn it, are you so arrogant?
What do you mean by this?
But soon, Li Min figured out the purpose of the system.
It seems that the system means that you cannot make money directly by selling the products in the system.
The system will only play a supporting role. If you want to make money, you still have to rely on yourself.
There is really no one else with such a arrogant system.
It seems that my dream of making a fortune using instant noodles has been shattered.
Li Min suddenly thought of a question and asked quickly: "System, system, the price of water-based polyester paint will not go up, right?"
The system prompts: "As long as the host is not sold directly, the price will remain unchanged."
After hearing the system's explanation, Li Min couldn't help but nodded.
Sure enough, as I expected, the system can only play a supporting role and cannot make money directly by relying on the system.
Well, I guess the first time I sold instant noodles, it was because I had not paid off the system debt, so it was an exception.
After I pay off my debt, the system will immediately raise the price.
If this is the case, then for the time being, I can only rely on water-based polyester paint to make money.
Of course, instead of selling water-based polyester paint directly, Li Min wanted to sell Taishi chairs.
The high-gloss paint made with paint cannot achieve this effect with the craftsmanship of the Tang Dynasty.
If this is the case, the Taishi chair business can take a high-end route.
Thinking of this, Li Min took the instant noodles and handed them to Cheng Hualiang and others.
Then he called a few people together and asked quietly: "Hey, there is a profitable business now, do you want to do it?"
As soon as he heard this, Cheng Huailiang suddenly became interested, and he quickly said with bright eyes: "I think about it, I think about it so much. Your Highness, please tell me quickly, what kind of business is it?"
