It's too late to say anything now, because Jiang Jing is already in the question:

"Today, there is a wall five feet thick, and two rats wear each other, one foot a day for rats and one foot a day for mice. Rats are doubled daily, and mice are doubled daily. Ask when the two rats will meet, and each will wear geometry?"

Bai Sheng was confused when he heard it, and he didn't quite understand the meaning of this question. There is no way, he can understand the Song people speaking vernacular, but Jiang Jing is speaking in written language now, so it is not easy to understand.

Although he memorized a lot of famous sentences and famous poems when filming before the crossing, he had never been exposed to this ancient arithmetic problem, not to mention that he had not been exposed to it, and even those screenwriters and directors had no one to chat with it.

If you ask Jiang Jing, it will inevitably seem that you are uneducated, or ask your wife is not ashamed, so he turned to Xiao Feng and asked, "What does he mean by this?"

Xiao Feng glanced at Bai Sheng suspiciously, and couldn't help but feel a little depressed. Why don't you understand this?

recalled that when I first met Bai Sheng, just looking at Bai Sheng's appearance, he had a temperament of poetry and calligraphy, and if he talked about poetry couplets, he had a wonderful sentence and the finishing touch, and he thought he was a well-learned scholar.

But as the contact between the two sides deepened, she found that her perception of Bai Sheng became more and more blurred, just looking at his gesture of holding the pen, she knew that he was not good at calligraphy, and now he couldn't understand this simple written language, what kind of person was he?

Anyway, since Bai Sheng asked himself, he had to explain it to him, so he translated: "He said: There is a five-foot-thick earthen wall, and two rats pierce through the wall from opposite sides of the wall. The big rat advances one foot on the first day and doubles the progress every day thereafter, and the small mouse also advances one foot on the first day and then halves the progress every day. If you keep fighting like this, how many feet will the rats cross when they meet in a few days?"

After the translation, he couldn't help but become more hostile to Jiang Jing, looked at Jiang Jing angrily, and said bluntly: "The surname Jiang, even if you are the best in the world in arithmetic, why do you tease him like this? It is too much to ridicule his nickname when you ask a question! Later, I will learn your martial arts and see if you are relying on your mouth to confuse the rivers and lakes in Huangmen Mountain!"

These words were already tantamount to the rhythm of openly declaring war on Huangmen Mountain, and everyone on both sides was shocked when they heard it.

What is Xiao Feng's martial arts? No one knows except Bai Sheng. Fan Rui and the others only knew that her name was Song Junyi, a woman dressed as a man and was Bai Sheng's wife and master, but she herself refused to admit that she was Bai Sheng's wife. Other than that, nothing is known about her martial arts.

Fan Rui didn't know anything about them, and the four bandits of Huangmen Mountain didn't know about it, but looking at the momentum of this beautiful scholar, it could be guessed that his martial arts were by no means general, and those with general martial arts would not have such a strong aura.

Can you not fight? The four people of Huangmen Mountain thought so, so their eyes were a little timid. However, Fan Rui and the three of them wanted to see the kung fu of their younger siblings, so they looked at each other angrily at the same time, and the atmosphere in the audience became extremely tense for a while.

Ou Peng and the others were secretly complaining, but they refused to blame Jiang Jing's responsibility, they only looked at Jiang Jing's attitude, as long as Jiang Jing made it clear that he would turn his face, then they would be side by side, there was nothing more important than righteousness.

Jiang Jing realized his mistake, and hurriedly tried to redeem it, and hurriedly apologized: "This friend, you misunderstood, this is an arithmetic problem in the seventh chapter of "Nine Chapters of Arithmetic" 'Insufficient Profit', the original title is like this, Jiang has no intention of mocking the owner of the white village. ”

In fact, the reason why he chose this question to test Bai Sheng was really because Bai Sheng's nickname made him relate to it, but he really didn't mean to ridicule Bai Sheng.

Seeing that the other party's attitude was more sincere, Xiao Feng relaxed a little and snorted coldly, "I hope what you said is the truth." ”

Bai Sheng was already so moved that he didn't want it, what could be more heartwarming than his wife coming forward to defend her husband's interests? Hurriedly grabbed Xiao Feng's arm and persuaded: "Don't be angry, I'll win his game first." ”

"What?" Xiao Feng's crescent eyes widened, "Did I hear me right?"

Seriously, the real reason why she wanted to do it with Jiang Jing was actually annoyed and angry, clearly saying that Bai Sheng couldn't win this bet, and she had to be used to play on the topic, how could she not be annoyed? But Bai Sheng actually said that he could win, so the situation was different.

What other way can have a longer face than Bai Sheng's victory? Wouldn't defeating the opponent in the field that the opponent is best at completely destroy the opponent's confidence? Everyone understands this truth, but Xiao Feng really can't believe it.

Bai Sheng's palm moved down Xiao Feng's forearm, warmed the slightly cool soft wattle with his palm, and confirmed again: "Well, you heard it right, I can solve this problem, but I need you to get the four treasures of the study." ”

Xiao Feng was confused again: "This is arithmetic, what are you doing with the four treasures of the study?"

Indeed, in the Song Dynasty and even before the Song Dynasty, people did not use such things as pens in arithmetic, but used arithmetic tools such as arithmetic chips. Until the abacus was invented, the abacus began to be used at the same time, but still no one would use the pen calculation.

In this era, the role of pen and paper is roughly limited to recording questions and answers, and of course they can also be used to describe the ideas and logic of solving problems, but there is no calculation to speak of.

Bai Sheng said softly: "You just go and get it, listen to me, when did you see when I did something useless?"

Xiao Feng thought about it, Bai Sheng really hadn't done anything useless, even that time in the trench was of great use!

"Grinding ink. Bai Sheng took the brush, spread out the paper sent by Huang Shangyahuan on the table, put the back of the paper up, and waited for the ink.

Jiang Jing and the others were all wide-eyed and puzzled, they didn't know what Bai Sheng was trying to do, Xiao Feng also began to grind ink in the clouds, could it be that he still had to write an "arithmetic preface" before arithmetic?

After only a moment, the ink was polished, but Bai Sheng dipped the brush in the inkstone, and then wrote hard and wrote some strange things on the paper. She could only barely recognize a few of the words, and felt that those words were ugly like earthworms crawling out:

"Solution: On the first day, 1+1=2 feet, there are 3 feet left;"

"The next day, 2+0.5=2.5 feet, 0.5 feet left;"

"On the third day, it will take X days. then there is (4+0.25)X=0.5"

"X=0.5÷4.25≈0.18 (days)"

......

Bai Sheng used arithmetic and algebra to solve this arithmetic problem that is about equivalent to the difficulty of the third grade of primary school, and then after the size conversion, the conversion of hours and hours and the hour, he almost used up a piece of rice paper, and then wrote the result as follows:

"When the two rats meet, it takes two days and an hour and more than three moments. When they meet, the big mouse wears three feet through the wall, and the little mouse wears one foot through the wall. ”

When he looked up, he saw a long, wooden face, and he noticed that the eyes on these faces were looking at his face, as if the answer was written on his face and it was wrong.

No one, including Jiang Jing and Xiao Feng, looked at the answer he wrote in the end, and couldn't help but panic, could it be that I had miscalculated? Otherwise, why didn't these people read the results I calculated? I deliberately used traditional Chinese characters!

He didn't know that this sprinkling of calculus paper had long made the onlookers look stupid, and no one could understand the Arabic numerals like "12345", let alone addition, subtraction, multiplication and division, and the unary equation.

Everyone thinks he's doing something like a ghost drawing, so how can anyone insist on seeing the end?

"Hey, wake up, I've figured out the result, Master Jiang, listen to me read the answer to you, see if it's right." ”