Khorne

Chapter 75 "Pinch someone else, I'm foaming!"

Seeing that Li Pan was so sure, Zheng Kin suddenly laughed.interesting.

This guy looks like a stick, and he has a golden abacus. It must be proficient in accounting and other things before, otherwise he would not be so confident.

It's a pity, my child, there is a gap of nearly a thousand years between what you know about arithmetic and what I know about arithmetic...

"En..." Zheng fear touched his chin and said with a smile: "Forget it, then I will test you with a ten-year-old child's question first."

Li Pan was full of confidence: "Please come up with a question."

An Li, Hua An, Wu Zhuang and the others hurriedly pricked up their ears, watching this exciting battle.

In fact, sometimes, the brilliance of Wenbi is not inferior to Wubi.

Zheng Gulue pondered for a while, and immediately came up with a question: "Say, there is a well nine feet deep, and the snail and the tortoise climbed up from the bottom of the well at the same time. Because the walls of the well are slippery, the tortoise climbed three feet during the day and slipped down one foot at night. The snail climbs up two feet during the day and slides down one foot at night. Ask: When the turtle climbs to the mouth of the well, how far is the snail from the mouth of the well?"

This is the classic distance problem in the Mathematical Olympiad in the second grade of primary school.

If it were placed on the earth, it would definitely not be difficult for those children who have been doing Mathematical Olympiad questions all year round, but the problem is that it is Song Dynasty now...

Scholars only know what they know every day, and those who know the four books and five classics are a big gift...

Sure enough, when he heard this question, Li Pan was a little confused.

This question is quite convoluted.

At the beginning, he did the calculations in his head, but found it difficult to calculate, so he quickly took a piece of paper and started writing——

"A tortoise climbs three feet every day during the day and slides one foot down at night, which means it climbs two feet every day."

"But the last day the tortoise climbed up was three feet, so the tortoise needs to...need..."

He was dizzy from this first step alone.

Because this question is not as simple as 9÷3=3, it also includes the question of the turtle going backwards.

If you can’t calculate this first step, then you can’t calculate it later.

Li Pan took the abacus and calculated it for a long time, finally wiped the sweat from his forehead, and finally said with certainty: "I figured it out, it will take four days in total!"

The three of Anli hurriedly gave a thumbs up: "Brother Li Pan is amazing!"

Continue to count down, this time you have to count how far the snail has climbed.

Li Pan continued: "A snail can only climb two feet minus one to equal one foot every day, so the snail climbed four feet in total on the fourth day. At this time, the snail's distance from the mouth of the well is nine minus four equals five feet!"

Finally, after finishing the calculation, Li Pan let out a long breath, almost drenched all over, but at least he figured it out, and pushed the answer forward: "The result is that there are five feet left!"

The four looked at Zheng fear together, waiting for the answer.

Zheng fear looked at Li Pan, smiled slightly, shook his head, and said: "The answer is wrong, the correct result is four feet."

"why?!"

Li Pan was stunned - he was clearly right!

I heard Zheng fear laughing and said: "Because there is no need to consider slipping one foot at night on the last day, so it should be nine feet."

Four people: "!!!"

"I... I actually made a mistake?!" Li Pan stared at the answer on the paper, dazed for a while.

The self who has never been counted as a miss since childhood, actually counted wrong this time? !
"I'm not convinced!" Li Pan looked at Zheng Xing and said, "President Zheng asks another question, and I'm sure I'm right!"

"Okay," Zheng feared again with a nuclear smile, and said, "This time it's even harder than before, listen up."

"Say, there are three vehicles A, B, and C starting from one place to two places at the same time. The speeds of A and B are 80 miles per hour and 60 miles per hour respectively. At the [-]th, [-]th and [-]th hours after the departure, we encountered three vehicles, A, B, and C. Ask, how many miles per hour is the speed of the C vehicle?"

Zheng Xing's question is more difficult than the previous question by more than one level.

Let's put it this way, the previous question is a Mathematical Olympiad question for the second grade of elementary school.

Now this one is for the sixth grade...

In fact, this is still relatively conservative by Zheng fear, not too much.

For example, what kind of four-color conjecture, or questions like calculus, that kind of question...

It is estimated that Li Pan would not be able to understand it even if he heard it, let alone calculate the result.

Sure enough, if Li Pan could still have some clues about the previous question, Li Pan couldn't turn around this question at all.

As he stared at the questions recorded on the paper, beads of sweat grew all over his body, and he really felt a bit like a mouse pulling a turtle without knowing what to do.

Because this question already needs to use equations...

"me……"

Li Pan stared at the title, sweat beaded from his forehead, and after a quarter of an hour, he suddenly felt his eyes go dark, and he fell straight down!

"Brother Li Pan!"

"Brother Li Pan! Why are you making this mistake again?!"

"Quickly pinch someone else, it's foaming!"

Zheng fear: "..."

Who would have thought that such a problem could be calculated to the point of fainting?

Fortunately, even though Li Pan fainted, he was still angry...

It took a long time for a stick of incense before Li Pan finally woke up. He looked at Zheng Kin speechlessly, and said helplessly, "Dean Zheng, I can't figure out this problem... I would like to ask Dean Zheng for advice." !"

"What can I teach you?" Zheng feared looking at him, and said with disdain: "With your body, is there still a need to study? You can pass out math problems, so what's the use of learning more knowledge? The body is only It’s the capital of everything, look at you as thin as a stick, I’ve taught you with your front feet and your back feet are dead, isn’t it a waste of work?”

Li Pan: "..."

If you don't point me out, I'm afraid I'll faint again...

"Dean Zheng, I'll pay, pay!" Li Pan tremblingly took out a cloth bag from his lapel, counted out five taels of silver plus 83 Wen, with a look of reluctance but had to pay. Gritting his teeth, he said, "Principal Zheng is indeed talented and learned. I'm convinced! I'm convinced! Students will study with you from now on!"

Zheng fear nodded in satisfaction: "Is that right..."

He said to get the money, but...

Zheng fear: "Let go!"

Li Pan grabbed the cloth bag tightly: "Zheng...Dean Zheng, you must teach me..."

Zheng fear: "..."

If you don't let go of me, I will teach you to understand what benevolence and righteousness are!

Fortunately, after tossing for a while, the three of Li Pan finally went out.

Zheng Xing took out three taels of silver and handed it to An Li, and said with a smile: "Good job, keep up the good work."

Anli: (＾＾●)

"Disciple understands!" Anli quickly collected the money.

Beautiful!

When I went out, I met the parrot again. The parrot looked at An Li and said, "Go to you! Go to you!"

An Li suddenly coughed twice, took out the silver and shook it in front of the parrot: "It's okay."

The parrot looked at Yinzi with round eyes: "Gong Xi Fa Cai! Gong Xi Fa Cai!"

Anli: "..."

This broken bird can talk!

Hahahaha!

……

After the few people left, Zheng Xing sat on a chair and thought about what to do next.

He feels that there is one thing that is the top priority at the moment, and it must be implemented as soon as possible.

"Textbook".

(End of this chapter)