Dahan first prince

Chapter 361 There Are So Many Smart People
Seeing Zhang Cang handing over the bamboo slips and claiming that the bamboo slips were the arithmetic problems Zhang Cang posed for his grandson, Liu Ying wanted to accept them happily.

But after hearing Zhang Cang's last sentence, Liu Ying's outstretched hand was unconsciously hanging in the air, neither stretching nor shrinking...

A five-year-old child has already started to learn how chickens and rabbits share the same cage?
What an international joke! ! !
You must know that even in the new era when the nine-year compulsory education is universal and the illiteracy group is almost eliminated, the "exercises" for five-year-old children are still only addition and subtraction within ten!
As for chickens and rabbits in the same cage, that's not what students should be involved in before they go to school, or even before they go to middle school.

the reason is simple.

——Essentially, the classic topic preserved by "Nine Chapters of Arithmetic" and passed on to more than 2000 years later: Chicken and Rabbit in the Same Cage, in fact, is the quadratic equation often called by later generations.

Take the bamboo slips that Liu Ying awkwardly took over at that moment as an example: there are 27 chickens and rabbits, and 84 legs in total;

Then, according to the binary linear equation solutions commonly used by middle school students in later generations, the numbers of chickens and rabbits should be set to x and y respectively.

Then, the following two equations can be derived.

x+y=27;

2x+4y=84.
Then by solving the binary linear equation and solving the values ​​of x and y respectively, we can know how many chickens and rabbits there are.

At this moment, even though it has been more than ten years since she came to this era, Liu Ying still has not forgotten: solving linear equations in two variables is clearly a junior high school course!

As for the problem of chickens and rabbits in the same cage, it often appears in the Olympiad competition, or the last big question of the math test!
This kind of memory makes Liu Ying completely unbelievable: the quadratic equation, which is required to be learned by teenagers in later generations, should be learned by five-year-old children in this academically poor BC.

Thinking of this, Liu Ying roughly reacted: This, what is the situation.

"Come on!"

There was no warning, and the originally relaxed atmosphere in the hall suddenly tightened. The maids, eunuchs, and Lang officials in the hall were all startled, and then they all raised their heads and looked in the direction of the imperial couch.

As for Cao Can, Wang Ling, and Zhang Cang, they were important ministers of the Zhu Kingdom after all, they were among the ministers, and they also served as Liu Ying's emperor's tutor, so they were not intimidated.

But even so, the three of them also raised their heads at the same time, cast doubtful gazes on Liu Ying's bearded face.

——On such a small matter, His Majesty will not be so angry and ask the teacher for punishment at every turn, right?

Before the three of them could figure this out, they saw Liu Ying get up from the couch, and waved towards the outside of the hall and the side of the hall respectively.

"One for the halberd man, one for the maidservant, and one for the temple, so that you can ask me what you want."

Seeing that Liu Yingdao understood his intentions, everyone in the hall breathed a sigh of relief, and looked at each other again. After a short while, they sent a police officer to the center of the hall.

"Weiyang Palace holds the halberd Lang Chenmao, see Your Majesty!"

"My maidservant Qinghe, slave okra, see Your Majesty..."

After the three of them met each other and bowed solemnly to Cao Shen and Wang Ling, Liu Ying raised her head with a smile and looked at the spearman who called herself 'Mao'.

"Qian Mao, the man who held the halberd, and his father Qian Ning started from Dangjun, and entered Xianyang from Emperor Gao of the Taizu. Later, he died of illness in Chang'an, leaving his youngest son Mao, Emperor Gao of Taizu took pity on him, so Yin became a man."

"In the 11th year of Emperor Taizu Gao, Chen Xifan, the prime minister, Mao was accompanied by a cavalier, and he was trusted by Emperor Gao of Taizu for everything. "

Almost without thinking about Dao Ming's origin, Liu Ying ignored the slightly surprised gazes of Cao Shen and Wang Ling, and looked at Qian Mao with a friendly face.

"You don't have to be cautious. I ask you what to say, and you will answer truthfully."

Qian Mao was a little excited that Liu Ying could remember her name, and even tell her background with her eyes closed.

Hearing Liu Ying's words again, Qian Mao straightened his waist even more, wishing he could bend it upside down into a bow, saying, "Your Majesty greets you casually, and my ministers are willing to say hello!" ' posture.

Seeing that Liu Ying smiled lightly again, she didn't even forget to roll her eyes at Zhang Cang meaningfully, and then looked at Qian Mao thoughtfully.

"When the Prime Minister Chen Xi conspired against the rebellion, Qing followed the Taizu Gao Emperor to suppress the rebellion in Dai and Zhao; untie?"

Asked in a calm tone, when Qian Mao nodded without hesitation, Liu Ying finally sat back on the imperial couch again, and asked the question that Qian Mao regretted for the rest of his life, and was entangled until death. Why didn't he answer? Woolen cloth? 'The problem.

"I heard that the army of our Han family mostly used infantry and chariots for defense, and bows and crossbows for offense. When the northern barbarians were fighting each other, they even abandoned chariots and relied on bows and crossbows alone."

"I also heard that whenever our Han family fought against the Huns in the northern barbarians, the heavy infantry would have a shield and a sword, and then they would be supported by light infantry such as spears and spears; And then projectile."

"Furthermore, bow and crossbow pawns get different arrows and feathers in each battle."

"—Twenty bowmen and arrows, three of them are shot in the first battle, seven after a long battle, five in a hard fight, and the last five are shot in a deadly battle;"

"When it comes to crossbows, it is a little more generous. There are fifty arrows, ten in the first battle, and ten in the next battle. If the superior does not order it to stop, the crossbows of our Han family will not be broken."

"But that's the case?"

Seemingly unsure of what she had heard, she asked a question, and then looked at the three of Cao Shen separately, before Liu Ying finally let out a long sigh and asked the last question.

"That's true, and Qian Jilang is familiar with military affairs, so I will try to ask about it."

"Yan Yijun has two thousand bow soldiers. According to the rule, when a person is equipped with twenty bow feathers, that's forty thousand."

"However, the enemy is cunning and has cut off the supply of our bow soldiers. There is no way to lose the bow and feathers, so we have to temporarily use the arrows of the crossbowmen."

"Therefore there will be an order: All crossbow soldiers in the army will have eight crossbow bolts to use with bow soldiers, and they will eventually get forty thousand crossbow bolts."

"Ask, how many crossbow soldiers are there in this army?"

Asking the question without changing her face, and rolling her eyes at Zhang Cang without any trace, Liu Yingcai looked at Qian Mao's stunned face with eyes full of encouragement.

But no one noticed: Qian Mao was not the only one who froze in place after Liu Ying asked this question.

——But everyone except Liu Ying!

For those court ladies and eunuchs, no one knows what this question means;
Everyone just felt that His Majesty's sudden question about the army clearly meant to imply something!
But for Cao Shen, Wang Ling and other loyal ministers of the Zhu Kingdom, especially Zhang Cang, who is proficient in "Nine Chapters of Arithmetic" and is the only master of arithmetic in the Han Dynasty today, this question is really familiar.

——The chicken has two legs, the rabbit has four legs, and the chicken and the rabbit are locked in the same cage...
—— Each crossbowman can take out eight crossbows, and each bowman needs twenty crossbows, and the bowmen and crossbowmen are all in one army...
"This!"

"That's clear!"

Aware of the 'competition' in this question, Zhang Cang only opened his eyes wide suddenly, looking at Liu Ying full of inconceivable!

Afterwards, Zhang Cang looked anxiously at Qian Mao, wishing he could step forward in person and tell the answer to this question for Qian Mao!
But it's a pity: this question was asked by Qian Mao alone by Liu Ying...
No matter how anxious Zhang Cang was, he could only watch Qian Mao ponder for a long time, before finally lowering his head lonely.

"I don't know why..."

A voice clearly revealing unwillingness, regret, and faintly sad tone sounded, which finally caused Zhang Cang to close his eyes in despair.

But even so, Zhang Cang couldn't escape the imperial steps, and Liu Ying's indifferent tone came again.

"The Marquis of Beiping is proficient in the way of counting, so you should ask this question. Has there been an answer?"

Seeing that Liu Ying was still in the mood to ask about himself, Zhang Cang stood up despite all his reluctance, and gave Liu Ying a slight bow as if unwilling.

"Your Majesty's eyes are as bright as a torch..."

"The number of crossbowmen shooting eight arrows is 5000, which is [-]."

"If you follow the solution recorded in "Nine Chapters of Arithmetic", you can also say that 'A bow pawn needs twenty arrows, and a crossbow pawn has eight pawns, so one bow pawn needs two and a half crossbow pawns to borrow arrows; and another two thousand pawns , People need two and a half crossbowmen, 2000 people, then five thousand crossbowmen are needed to borrow arrows' to solve..."

Hearing that Zhang Cang solved this problem in the blink of an eye, but Liu Ying just smiled and nodded, and then waved her hand lightly to signal Qian Mao to back down.

Then, Liu Ying's eyes fell on the court lady named Qing He and the old eunuch who called herself 'Okra'.

"As for the two of you, I will also ask a question; if one of you answers this question and gets a correct answer, I will give ten gold to each of you!"

Throwing down the reward without hesitation, Liu Ying threw out another question without thinking too much.

"It coincides with the beginning of the year, and I want to reward all the people in the palace, based on how long they have been in the palace: one year old, one hundred qian, two times, ten years old, ten times."

"Also, the reward of 'year-old hundred qian' is compared to that of a powerful traitor in the palace. For every hundred qian I reward, the traitor will draw five qian."

"There is a person in the inner temple who received a reward from me, and the reward money he got was drawn by this traitor, leaving a thousand and one hundred and forty dollars."

"Question: When did this inner temple enter the palace?"

When the question was asked, Zhang Cang's expression sank again, he frowned and lowered his head, wondering what he was thinking.

As for the two people who were questioned, as expected by Liu Ying, they didn't focus on the question itself at all. Instead, they knelt down and kowtowed to thank them as soon as they finished speaking.

"How dare the old slave be rewarded by His Majesty with 'year-old hundred coins'?"

"But if there is such a reward, the old slave will not dare to accept it, and it will all belong to the Shaofu, thinking that it will be used by the community..."

Stumbling and uttering these words, the old eunuch swallowed greedily, seeing that he had been in the palace for a long time;
As for the little maid, she was so excited that she couldn't say a word, she just lowered her little head and smashed it on the wooden floor of the hall.

I don't know how long it took, and I was a little impatient with Liu Ying, and finally the old eunuch raised his head with a flattering smile and gave his own answer.

And this answer was clearly intended for Liu Ying, but Zhang Cang finally listened to it...
"Thanks to the kindness of Taizu Emperor Gao and His Majesty's second Mingjun Xiongzhu, I dare not lie to Your Majesty's question, old slave."

"The old slave purified himself at the age of seven, and entered the Qin Palace in Xianyang at the age of nine;"

"When Emperor Gao, the later Taizu, saw that the old slave was still doing his duty, he allowed the old slave to serve the palace, and came here for more than forty years..."

"In the past few decades, the old slave has seen countless dignitaries, such as Qin Wangzheng, the second generation Hu Hai, and the third generation Ziying. The old slave has also seen it."

"An old slave..."

In the middle of speaking, the old eunuch stopped talking with embarrassment, and looked at Cao Can, Wang Ling, and Zhang Cang with some shame.

After Liu Ying coughed lightly, indicating to continue to answer, the old eunuch looked like a newly married girl, and lowered her head shyly.

"The old slave purifies himself because his family is poor..."

"Old slave, never had the luck of being literate..."

"The word "Cangjie", the old servant only heard other people's words, but never saw it with his eyes. Even if he saw it, he might not be able to recognize it."

"For a vulgar person like this old slave, His Majesty actually asks each other with the knowledge of numbers..."

"Uh······"

"some·········"

Seeing the old eunuch groaning for a long time, unable to think of the word 'too flattering', Liu Ying finally waved her hand slightly to let the two of them back down.

When the hall returned to the scene where only Liu Ying was sitting on the imperial couch, and Cao Shen, Wang Ling, and Zhang Cang sat opposite each other under the imperial steps, Liu Ying raised her head with a smile and looked at Zhang Cang again.

But this time, Liu Ying's smile is no longer full of easy-going and elegant, but a little bit of bitterness and helplessness in Liu Ying's smile...

"How does the Marquis of Beiping feel when he sees these three people's accomplishments in 'counting'?"

Asked in a relaxed tone, seeing that Zhang Cang was still bowing his head indifferently, Liu Ying just shook his head and smiled, and continued on his own: "Jijilang, who belongs to Lang Zhongling, ranks six hundred stones;"

"But if there is a war and it is released, it will be sealed by the partial general."

"However, even though the official Zhonglang, who is banned for six hundred stones, will be the general who leads the army, he is also at a loss for what the Marquis of Beiping said, 'It's too easy for children in Zongjiao'."

"As for the maidservants in the palace and the inner temple, although many are illiterate, they have finally been immersed in the palace for many years, and they deserve the title of 'well-informed'. ··”

As she was talking, Liu Ying's tone became a little more serious. Seeing that Zhang Cang's face was still unwilling, Liu Ying simply got up from the couch and walked down the stairs.

"Today, what I want to say about the Marquis of Beiping is the people of the world. Not everyone is smarter than the Marquis of Beiping's young grandson, nor is everyone more intelligent than the Marquis of Beiping. He is familiar with "Nine Chapters of Arithmetic" and recites it backwards like a fluent."

With enough time to speak, Liu Ying had already come to Zhang Cang's side, and while stretching out her hand to help Zhang Cang up from the ground, she did not forget to say in Zhang Cang's ear half jokingly and half meaningfully: "I wish that one day, the people of all Hans will be able to do so." The people are all smarter than the young grandson of the Marquis of Beiping."

"However, the Marquis of Beiping should still know clearly that this time, the examination and selection are for the young officials with a rank of two hundred stones, and they are also selected among the people such as scholars, farmers, and workers."

"The knowledge of this generation is certainly not comparable to that of the princes of Beiping and the princes in the court; it is also difficult to compare with the old officials who have been in the court for a long time and are proficient in government affairs."

"However, our family now needs the power of this generation..."

(End of this chapter)