Liu Qiaoer found it funny. Actually, Cui Boxiao was quite good-looking, but his reputation as a playboy had held him back.
Otherwise, with his looks and family background, I'm afraid more than half of the noble ladies in the capital would be willing to marry him.
The two most talented women came to ask Cui Boyao for advice, and Yang Song finally couldn't sit still anymore.
He found his good friend and challenged Cui Boxiao.
"What? Counting? Do we still need to take the imperial examination?" Cui Boyao really didn't want to compete with Yang Song anymore.
Cui Boxiao is a modern man, plus Liu Qiaoer and her space, is it possible that their knowledge base is not as good as that of an ancient person
However, Liu Qiaoer stopped him.
"Let's have a comparison. It's quite interesting. Besides, once you become famous, many people with lofty ideals will come to you to serve as your aides. Maybe the person we are looking for is among them."
Cui Boxiao was worried: "Looking for a person, but there is no feature, no clue, what's the point of looking... Fuck it... I really want to become this person."
Liu Qiaoer didn't say anything, and Cui Boyao continued to look at the questions.
The question is very simple. It is a nine-square arithmetic problem. If you put numbers from one to nine in the nine-square grid, no matter you add them horizontally, vertically, or diagonally, the sum is always fifteen.
It was still hosted by Mr. Zhu. After giving the questions to the two people, Cui Boyao said lightly.
"It's actually this kind of question. I've seen it when I was young. I still remember a formula. The meaning of the Nine Palaces is to follow the spirit turtle. Wear nine and step on one. Three on the left and seven on the right. Two and four are shoulders, six and eight are feet, and five is in the center."
Mr. Zhu was surprised, then he filled in the numbers, and sure enough, no matter how he added it, it was always fifteen.
Yang Song was also surprised. His friend was the best at counting and it took him a month to solve such a problem.
I didn’t expect that Cui Boyao had solved it when he was a child, and there was even a mnemonic for it.
Cui Boxiao then continued, "Not only the Nine Palaces, but even the 44 diagram, the 55 diagram, and even the 100-child diagram are not surprising. Take the 44 diagram for example. Arrange the sixteen characters in four rows in sequence. First, swap the four corners, one for sixteen, four for thirteen, then swap the inner four corners, six for eleven, seven for ten. In this way, the sum of the horizontal, vertical, up and down angles is thirty-four."
"Each of the Nine Palaces can be transformed into a Bagua, eighty-nine equals seventy-two. With numbers from one to seventy-two, they circle around the Nine Palaces. Each circle has eight characters, and there are four more circles at the intersection, for a total of thirteen circles. The sum of the numbers in each circle is two hundred and ninety-two. This Luoshu diagram is very strange, and not many people know about it."
"So that's how it is. The prince is really smart. I have to admit he is superior to me."
Yang Song's friends surrendered so quickly.
Yang Song saw how quickly he drew and explained, and soon everyone was impressed by him. He became more and more unconvinced.
Hu Bingxue on the side looked at him deeply and said soothingly: "Don't worry, he may be more interested in this type of questions. I have a question here too, let's see if he can solve it."
After Cui Boyao finished explaining it to everyone in a simple and clear manner, some smart people understood it immediately and nodded their heads.
Some of the dumber ones began to ask Cui Boyao for advice, and Cui Boyao also explained patiently.
Now, what was originally a poetry reading for everyone has suddenly turned into Cui Boyiao’s personal performance.
At this moment, Hu Bingxue's clear voice rang out among the crowd.
"Sir, I have a question here too, but I don't want to know the answer in detail. I wonder if you can help me to understand it."
Cui Boxiao looked at Liu Qiaoer, only to see Liu Qiaoer nod.
The answer to any question from ancient times to the present can be found in the computer. It was just a coincidence just now. Cui Boyao has read Jin Yong's "The Legend of the Condor Heroes" so he can answer this type of question.
As for the rest…
Cui Boxiao still extended his hand very gentlemanly: "Then please."
"Now there are pheasants and rabbits in a cage. There are thirty-five heads on top and ninety-four legs below. How many pheasants and rabbits are there?"
A pheasant is a chicken, and this is a typical problem of chickens and rabbits in the same cage.
Cui Boyao thought she could come up with some advanced questions, but he didn't expect it to be like this.
It was a question that even elementary school students could answer. But just as he drew an X on the paper, he was stopped by Liu Qiaoer.
"You are the slowest at solving problems this way. Use your brain. This problem is very simple. Let the rabbit's legs lift up first."
Cui Boxiao rolled his eyes and smiled: "Ms. Hu, don't mention me, even my servants can answer this question. Come on, Qiao'er, tell them the correct answer."
Liu Qiaoer was speechless, but since Cui Boyao pushed the question to her, she could only answer with a smile.
"Ms. Hu, Mr. Yang, this problem is actually very simple. First, let the rabbits lift up their legs, and you can know that the number of rabbits is twelve. Then, subtract twelve from thirty-five, and the number of pheasants will be twenty-three."
The maidservant beside Cui Boyao solved the problem by mental arithmetic. However, when Hu Bingxue got the problem, it took her three days to solve it. She thought she was smart and three days was a fast time. Unexpectedly, she was not as good as a maidservant.
When Liu Qiaoer gave the answer, everyone was stunned. It turned out that this was the solution.
Cui Boyao was also surprised. He was just about to set XY, but he didn't expect Liu Qiaoer to solve the problem so quickly.
"What kind of topic is this? I have never seen it before."
Liu Qiaoer: "You don't learn Mathematical Olympiads abroad."
It's true. This is an introductory question for Mathematical Olympiad. Since the education burden began to be reduced, many children have not been exposed to it.
But Liu Qiaoer is smart and her family taught her Olympiad mathematics, so she can do it.
Mathematics in foreign countries is studied with the help of computers. Cui Boyiao has indeed never studied Mathematical Olympiads. Mathematical Olympiads in foreign countries are only prepared for those who participate in competitions.
No wonder Liu Qiaoer solved it so quickly.
"Pa pa pa," Su Qing clapped her hands in appreciation. "This is really wonderful. To be honest, Miss Hu gave me this question the day before yesterday, and I still don't have an answer. I didn't expect that the prince would find it so simple. I'm so ashamed. It seems that the prince was very talented before."
Cui Boxiao smiled confidently, but there was no smugness in his eyes. Instead, he looked a little disappointed because he didn't find the person he was looking for.
"I'm sorry to have embarrassed you today, Young Master Yang. I'm not trying to hide my incompetence, but I just don't want to embarrass my father. If he finds out, I'll definitely be punished when I go back."
Everyone knew that the Marquis of Zhennan had strict family education, and they believed Cui Boxiao's statement.
The first few times he came here he was just for fun, so he didn't take it seriously. But now his father is back, if he knew that the prince was uneducated, he would definitely get beaten.
"Well, today's poetry gathering is on my shoulders. Everyone, enjoy your meals and drinks. Linglong, go tell the shopkeeper to bring some of our special tea to Miss Hu and Miss Su. Remember to add more sugar."
Hu Bingxue was a little surprised: "It can also be used to make tea? I only remember that citrus peels can be used to make tea, but I didn't expect that it can also be used to make tea."
Su Qing was also curious and asked, "I've heard that some people like to drink scented tea, such as jasmine, rose, and plum blossom. This is the first time I've heard of tea."
Ancient people had a long history of drinking scented tea, dating back to the Wei and Jin Dynasties, but tea drinking only began in the Tang Dynasty.
This is because the buds in ancient times were all large, and the small buds used to make scented tea were rare, and were generally only used as medicine.