Chapter 215: Easy to solve

At this time, many talented people have seen the test questions, and they have lowered their heads to think about it, and many people have already shaked their heads and left, so the place where the test questions are posted is not how crowded.

As soon as Yang Zheng took two steps, he heard someone in the crowd shouting: "Brother Yang, Brother Yang-?"

Yang Zheng saw that it was Duan Yu, and hurriedly greeted him, "How is it?"

Duan Yu nodded and said, "I've seen it!"

Yang Zheng said: "Can you answer?"

Duan Yu sighed and said, "I'm not afraid of Brother Yang's jokes, I haven't seen this test question Duan Mou, let alone the answer, I'm afraid I can't figure it out?"

"Damn, it won't be so difficult, right?" Yang Zheng was taken aback, although this reputation is not as infatuated and talented as Duan Yu in the Eight Divisions of the Heavenly Dragon, but his own cultivation is really not low, he actually said that he couldn't understand this test question, which shows that this test question is very difficult.

"Brother Yang—?" Duan Yu suddenly glanced around and said in a low voice.

Seeing him so weird, Yang Zheng couldn't help but feel his heart skip a beat, and he also subconsciously glanced around, and said, "What's the matter?"

Duan Yu said: "You, did you make the eldest lady angry?"

Yang Zheng was stunned for a moment, and then scolded: "This Duan Yu was almost scared to death by you!"

"Provoke the eldest lady to be angry, how dare I?" Yang Zheng said with an innocent face.

Duan Yuhu glanced at him suspiciously, as if he didn't believe what he said.

"Then why does the eldest lady keep scolding you, and she still scolds you fiercely?" Duan Yu lowered his voice and said softly.

Yang Zheng knew that it must be Li Yan'er's words just now that caused the trouble, and this kind of thing was not easy to explain, so he smiled bitterly and said, "Master, you are not afraid of people, so how can you show the prestige of the master?"

Duan Yu was stunned for a moment, muttered this sentence in a low voice, and suddenly nodded and said, "What you say is reasonable, what you say is reasonable?"

"Okay, I'm going to read the test questions, otherwise the eldest lady is not as simple as scolding, I'm afraid I'm going to kill someone?" Yang Zheng patted Duan Yu on the shoulder and said.

"Wouldn't it—?" Duan Yu was taken aback.

Yang Zheng didn't say much, laughed, then flashed sideways and walked towards the place where the test questions were posted.

After walking back with his head in his hands, Yang Zheng walked to the front of the stage, found a vacant position and stood up, and then looked up at the test questions.

"Today there is one chicken, which is worth five, one hen, which is worth three, and three chickens, which are worth one. Where 100 dollars buy 100 chickens. Ask the chickens and hens?"

He read it silently, and suddenly laughed.

His voice was not loud, but for the talented man who was complaining and meditating, it was undoubtedly what attracted his attention.

"Who is this person? Why do you laugh when you see the test questions?"

"I think most of them are crazy, so it's strange if you don't go crazy after reading such a test question?"

"Hey, isn't that a descendant of the Peng family, why did he laugh after reading the test questions?"

In the corner, Zhu Zhantan and Yang Yifeng glanced at each other, and the two of them didn't believe that the screaming Huazi that the Peng family had high hopes for would go crazy because of a test question.

On the contrary, a bad feeling welled up in the hearts of the two, originally for Li Zhuo to come up with such a test question, the two were surprised, and at the same time a little happy, although this test question is not as brilliant as the text, but for the perennial recitation of the Four Books and Five Classics, it is undoubtedly difficult for the Shu Road to go to the sky, so as soon as this test question came out, Zhu Zhantan and Yang Yifeng were also secretly a little more happy. After all, this test question is really difficult.

But Yang Zheng's laughter made the two of them a little uneasy, speaking of which, the reason why they came up with so many tricks this time was nothing more than Yang Zheng's poetry and songs, for this Huazi, which can bring the Peng family back to life and show a steaming trend, neither of them despised it.

Zhu Zhantan frowned and said, "I'm paying attention!"

Yang Yifeng nodded and said, "I understand!"

Yang Zheng laughed, which immediately attracted the attention of everyone on the field, but more people would rather believe that this subordinate was crazy, and no one believed that this subordinate could really let out a hearty laugh after seeing this test question.

On the whole field, if you really want to say that someone really believes in him, only Li Yan'er, the eldest lady, the second miss, and Li Zhuo are optimistic about him.

Yang Zheng laughed for a while, stared at the test question, and said to himself: "I didn't expect to meet you here, we are still fate?"

Speaking of this test question, Yang Zheng does not have a trace of strangeness, this inverted test question, after learning the ternary equation from junior high school, basically accompanied his junior high school and high school career, he is so familiar with this test question that he can't be more familiar, and now he sees it again, how can he not laugh?

"This little brother, can you give me a pen and a piece of rice paper?" Yang Zheng laughed for a while, turned to the Yang family next to him and smiled at him.

That family Ding just saw that the county magistrate was befriending him, and when he heard that he also wanted a pen, ink, paper and inkstone, he nodded, and asked the pen, ink, paper and inkstone in his hand to send it over.

Yang Zheng took the pen, ink, paper and inkstone, and quickly began to calculate.

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At this time, there is no ternary equation, the reason why Zhang Qiujian was able to calculate this problem so quickly seemed impossible at the time, it is said that Zhang Qiujian found some rules from it,  four rooster is worth  20 Wen money,  three chickens are worth  one Wen money, the total number of chickens is  seven , and the number of money is  twenty-one& As for the seven hens, the number of chickens is  7 , and the number of money is also  21 . If you buy seven hens less, you can use the money to buy four more roosters and three chicks. In this way, a hundred chickens are still a hundred chickens, and a hundred dollars are still a hundred dollars. So, as long as you have to find one answer, according to this law, you can find other answers immediately.  ;

Yang Zheng is from the 21st century, naturally he will not spend a lot of time looking for rules, the so-called "hundred chickens problem" is an indefinite equation problem, such a problem, as long as a few equations are listed.

He quickly sketched on rice paper, setting  x+y+z=100 .

Suppose the rooster, hen and chick are  x ,  y ,  z respectively, and the system of equations can be obtained according to the meaning of the problem:  5x+3y+ 1/3z=100 

In addition, set an integer parameter  k , which is:  x=4k , y=25 - 7k , z=75+3k .  ;

Because the number of chickens  x ,  y ,  z  can only be positive, the  k  value that satisfies this group of formulas can only be  1 ,  2 ,  3 . Use  1 ,  2 ,  3 , respectively, to replace  k ......?

The family member of the Yang family has been staring at Yang Zheng all the time, and saw that he had some strange symbols written on the snow-white rice paper, and he had a mouth growing up, looking at the person in front of him a little strangely.

But he soon didn't feel strange, because when he saw this handsome mess boy in front of him, a smile appeared at the corner of his mouth, and the smile slowly spread, as if he saw the calm water of West Lake, and someone threw a small stone, and then stirred up a ripple, and the ripples slowly rippled with the ripples, going farther and farther.

The Yang family's eyes flashed, and when he looked at Yang Zheng again, he stretched his neck slightly, and quickly glanced at the rice paper that had been ruined, and his eyes fell on a corner, a few good-looking small letters.

"Four roosters, eighteen hens, seventy-eight chicks."

The Yang family nodded, a flash of joy flashed in his eyes, and he retreated without moving.

The talented people in the crowd bowed their heads and meditated, and the complaints were endless, and no one noticed the departure of the little family.

In a corner of the hall, the family lay down next to Yang Yifeng's ear and whispered a few times.

The corners of Yang Yifeng's eyes showed joy, and he whispered a few softly to Zhu Zhantan.

Zhu Zhantan's brows frowned slightly for a moment, and he suddenly sighed: "This descendant of the Peng family is also a god!"

Yang Zheng was still immersed in his own problem-solving thoughts, unaware that the Yang family's family had stolen his solution to the problem and ran away, he looked at the rice paper in his hand, and after confirming it again, he exhaled lightly and said to Li Zhuo: "My lord, the answer is out?"

At the same time, the Yang family also shouted: "My lord, the grass people also have an answer?"

The hall was full of talented people, and the merchants were no longer noisy, everyone stopped talking, complained, and turned their heads to look at Yang Zheng and the Yang family.

"It turns out that there are still people in this world who have lifted this seemingly heavenly test question?"

"I knew that guy would definitely be able to answer it, what else could stop him at this time?" Li Yan'er's eyebrows were crooked, and a faint smile rippled from the corner of her eyes, provoking several talented people beside her, secretly amazed.

"Sister, bad guy, bad guy answered?" said the second lady in surprise, a smiling face flushed with excitement.

"He can also answer such a test question, no wonder he was so horizontal at the beginning, this guy does have horizontal capital?" In the distance, Duan Yu muttered quietly, his eyes full of admiration.

"Four roosters, eighteen hens, seventy-eight chicks."

Two voices rang out in the crowd at the same time, and they were all in unison, saying the same answer.

There was silence in the crowd, and they all looked at Li Zhuo with their cheeks.

Li Zhuo sighed softly and said with a smile: "It seems that I still have gods in Daming, can't I think of two more?"

"Hehe, I'm afraid it's not necessarily, right?" Zhong Guan glanced at the Yang family with a smile.

Li Zhuo was stunned for a moment, glanced at Zhong Guan in surprise, frowned slightly and said, "What does Master Zhong mean by this?"

Zhong Guan smiled and said, "My lord, please take a look?"

Li Zhuo looked in the direction Zhong Guan was pointing and said suspiciously, "What did the master find?"

Zhong Guan said: "Don't you think that the family next to Yang Yifeng is a little familiar?"

Li Zhuo took a closer look, and suddenly remembered that this Ding was not the Yang family Ding who brought him pen, ink, paper and inkstone?"

Li Zhuo said: "What does the master mean?"

Zhong Guan said with a smile: "Just now, I saw this family, and I was standing beside this Peng family's son, and when the Peng family's son bowed his head and calculated, he left without anyone paying attention, and then the Yang family also had an answer......?"

"Are you saying that the Yang family didn't actually calculate this test question, but stole Brother Yang's answer?" Li Zhuo looked at his master with wide eyes.