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Chapter 23 Yes, it’s nine rabbits!

"Fuck it, Qiao Yu, wake up, wake up quickly!"

After the morning self-study get out of class, Zhou Shuang went out to the toilet. After strolling in the corridor, he ran back to the classroom excitedly and began to slap his deskmate hard.

Qiao Yu opened his eyes sleepily, glanced at Zhou Shuang who looked excited, and asked unhappily, "What?!"

"Fuck fuck fuck! How are you still sleeping? Don't you know that the guy named Xu from Class 1 last night actually dared to confess to your girl in public? But you are lucky enough, because that guy was directly rejected by your wife in public. It was so embarrassing." Zhou Shuang said with a beaming eyebrow.

My brain, which had been forced to turn on, still felt groggy.

But the three words "your wife" in Zhou Shuang's words made him sober up immediately...

Are you kidding me? Wife? Can you use this word carelessly?

He asked in surprise, "What wife?"

"Xia Keke! Stop pretending. Everyone in the grade knows that you two are a couple. It is said that Xia Keke rejected the guy named Xu yesterday because of you. Although it sounds good, I still think that we men can't tolerate this!

Knowing that she is your wife, he still dares to confess his love in public. This shows that he doesn't take you seriously! Qiao Yu, don't worry, as long as you make a sound, the brothers will help you tonight and teach that Xu a lesson, so that he knows what it means that the Thirteenth Class cannot be insulted! "

Qiao Yu was speechless.

Not only did he not feel angry, he even felt a little pity for the man named Xu.

He is just a poor kid who was deceived by Xia Keke's innocent beauty. So what does he always say? Appearance is not a good thing. When choosing a girlfriend, you must not only look at the appearance. Inner beauty is also very important...

For example, if it were him - well, Qiao Yu felt that he would probably have to pick a pretty one first.

Thinking about it this way, Xia Keke does seem to be quite good, except that she has a lot of little ideas to do bad things and likes to control other people when she has nothing to do, but otherwise there is nothing wrong with her.

Wait, when we had breakfast together and went to school this morning, I didn’t hear the little girl mention this matter at all. It seems that she really didn’t take that guy named Xu seriously.

That guy is even more pitiful...

While thinking about all these messy things in his mind, he asked calmly: "How did you know?"

"It's already been publicly confessed, how could I not know? The news has almost spread throughout the grade. I heard from the Rocket Class that the guy named Xu was called in for a talk by their head teacher as soon as he arrived in the class. The talk lasted the entire morning self-study session, and he hasn't returned to the classroom yet!"

After saying that, Zhou Shuang grinned and sneered: "You deserve it!"

The expression on his face was just short of the word "gloating", which showed that he truly shared the same hatred with Qiao Yu.

"He's already in such a miserable state, and you still want to teach him a lesson at night? Have some humanity." Qiao Yu said unhappily. After wanting to continue sleeping on his stomach, he found that he couldn't fall asleep at all. He sighed in his heart and picked up the chemistry book.

I can only say that his classmates are really too idle. Without the pressure of survival, their little brains like to think about all sorts of things. If they go hungry for two meals a day, they will definitely have no time to think about love.

In addition, he has already arranged the tasks for the recent period.

During the day, I review junior high school knowledge at school to prepare for the upcoming mock exams and the final high school entrance exam. On odd-day weeks, I go to Teacher Lan's competition class to handle chores and learn professional math typesetting software applications. In the evenings and weekends, I prepare for the upcoming Xiaolibaba Global Mathematics Competition.

As for love...

Qiao Yu felt that love was a heavy burden for both himself and the little girl. After all, he had no father in his life. The young man just had no experience of being a father, and he didn't even have the experience of being a son to his father. So his first task now was to make money, and love could wait until college.

"No, I'm thinking about you! We need to make that Xu realize his position... Hey, why do I feel so heavy-hearted when I see you flipping through a book? Qiao Yu, how about you help me test whether I have a talent for mathematics?"

Qiao Yu glanced at this guy inquiringly.

"I went to the Internet cafe last night and took a look at the online English courses. I found them very difficult. I think I may not have any talent for languages. But I thought you looked pretty good when you did the math problems yesterday. When Mr. Gong saw your expression, it was amazing! So I was thinking, why don’t I try to learn math?" Zhou Shuang explained.

Qiao Yu retracted his gaze and returned his attention to the chemistry book. Without raising his head, he said, "This is simple. Suppose there is a closed ecological experimental area. The staff releases three rabbits into it every day for three consecutive days. Then, on the third day, how many rabbits are there in this ecological experimental area?"

"Fuck, you are looking down on me. Aren't there only nine of them?" Zhou Shuang replied angrily.

The deskmate thought this was a real humiliation of intelligence, but Qiao Yu obviously didn't think so, and said seriously: "Look, you have a good talent for mathematics. Believe me, mathematics is actually like this."

Zhou Shuang was speechless and said sullenly, "Qiao Yu, we are friends anyway, how can you fool your friends like this?"

Qiao Yu sighed and finally took his eyes off the chemistry book. He glanced at his deskmate's dejected look, thought for a moment, then picked up a pen and paper and began to write, muttering to himself.

"Okay, it's still a closed ecological experimental area. There is a group of rabbits in it. After observation by the staff, it was found that the change in the number of rabbits A over time t can be described by a differential equation: dA(t)/dt=A(t)*（a-bA(t)）

Where a and b are constants, representing the natural growth rate of rabbits and the environmental inhibition factor, respectively. At the same time, the researchers also found that when t=0, the number of rabbits in the test area was 4. Assuming that after ten days of observation, the number of rabbits has reached nine, what is the maximum number of rabbits that the test area can accommodate? "

After finishing, Qiao Yu handed the manuscript to his deskmate and said encouragingly: "Trust your math ability and intuition. Come on, tell me what the answer to this question is!"

Zhou Shuang stared at the question blankly, then answered uncertainly: "Nine?"

"Fuck, I actually got the answer right! Zhou Shuang, you're such a genius. You can even find the limit!" Qiao Yu raised his hand and patted Zhou Shuang on the shoulder, then picked up the chemistry book again.

Qiao Yu felt that he had done his best. He couldn't just say, "You're hopeless. Stop struggling. Just give up."
After all, we are classmates and good friends. It is a good thing to encourage him to learn more.

Fortunately, Zhou Shuang is not really stupid.

He glanced at the scribbled handwriting on the paper again, especially the formula that he could not quite understand, and suddenly realized that there was a huge gap between him and this classmate who he originally thought was a fellow traveler. The gap was as big as 8848 meters.

After thinking for a while, he suddenly called out, "Qiao Yu."

"Ok?"

"Please sign your name under this question."

Qiao Yu tilted his head and looked at his deskmate suspiciously. This request was not quite normal.

Zhou Shuang said seriously: "I plan to keep this question."

Qiao Yu was speechless, then picked up the pen.

Fortunately, his name is easy to write, so I won’t charge you any fees this time.

(End of this chapter)