The second round is a clever test. To put it bluntly, it is actually a combination of mathematics, that is, mathematics.

This round of competition was not hosted by Fu Yuewen, but another old man behind him.

"Old man Shangshu Zhang Heng from the Ministry of Engineering, the second round test is hosted by the old man. There are three test questions, which have been placed in front of you. Time is two sticks. Please answer the questions." Zhang Heng does not seem to be He is good at speech, concise and concise, and has been explained clearly.

At this time, everyone has already been seated. In front of everyone, there are test papers. On the test papers, three math problems are neatly copied.

Yan Yizhu didn't immediately set his sight on the paper, but instead looked towards Yang Xuan at the back.

After a few glances, there was a trace of provocation in his eyes, and he looked towards the paper.

Yang Xuan ignored him and looked towards the first question directly.

"Today, there are chickens and rabbits in the same cage, with 35 heads on the top and 94 feet on the bottom. Ask the chickens and rabbits how are they?"

Yang Xuan almost laughed, the chickens and the rabbits are the same As for the problem of cages, all the students in the fifth grade of his previous life could do it. How could he be a serious undergraduate student.

After making the answer in twos or twos, he looked towards the second question.

"Today there are two people, A and B, walking towards each other. One dog and A set off at the same time. When B turns around, when B turns back, then A turns back..."

Some numbers are given behind. , Yang Xuan scanned it a little bit. If he remembers correctly, this question is still an encounter problem in the five-year mathematics of elementary school.

It seems that the level of the person who gave the question is still in the fifth grade of elementary school.

But he did it for difficulty.

He didn't know how to do this problem until now. What he worries about is how to convert various mathematical symbols from his previous life into a textual expression of this world.

Too much to finish this question, he looked around all around, the expressions of everyone taking in the entire scene.

Some frowned tightly, some gnashing teeth, and some even just left the pen on the table and started in a daze.

Yang Xuan smiled secretly.

The ancients paid more attention to literature than theory, and the development of mathematics was relatively lagging. Even if he had forgotten about the mathematics knowledge taught by his previous teachers, I am afraid I still have to slap this world. People.

After sighing, he looked towards the third question.

At this glance, his brows have been slightly frowned.

It is not how difficult this third question is, but this third question, in fact, it should be two questions.

"There is a column today. I don’t know its height. How to measure it? There is a circle. How do I know the width of the circle?"

The equation of proportionality and the diameter of the circle?

Yang Xuan jumped out of these two knowledge points.

The equation of proportionality and the diameter of a circle are both knowledge points in the sixth year of elementary school, which is Level 1 higher than the fifth grade just now, and the level has been improved.

After thinking about it, he took a pen and wrote a few words on the scroll:

There is a shadow in the column, and the measurement can tell.

A circle has a week, and the test is straight.

Two simple sentences, if you put them on Earth, sixth-grade pupils can understand them, but put them here... I'm afraid no one can understand them.

Yang Xuan keenly felt that these last two questions were the key to this second round.

After writing these two sentences, he just got up and left his seat.

At this time, everyone in the hall was still thinking hard, and they were shocked when they saw him getting up.

Yan Yichu was a little stunned. He just thought about the second question. He just had some eyebrows, but he didn't expect that Yang Xuan had already handed in the paper.

I'm afraid it's not foolishness, he thought maliciously.

He couldn't believe that Yang Xuan could solve these three difficult questions for him in such a short time.

absolutely impossible!

He secretly gritted his teeth, retracted his mind, and concentrated on thinking.

Wang Zhuo also looked at Yang Xuan, his eyes flickering.

He is also a little uncertain about Yang Xuan.

On the contrary, Jin Chengfeng just swept Yang Xuan slightly, and then he lowered his head to think again.

People reacted differently, but they were all a little surprised about Yang Xuan's early submission.

Zhang Heng and several others looked at each other, and then walked directly in front of Yang Xuan.

"Young Master Ren, what are you..."

"It's too simple, it's over." Yang Xuan looked impatient.

Zhang Heng's nose was almost crooked. He did all these three questions. Even if it was him, it would take a lot of hands and feet to answer. Especially the third question is even more involved, and no one can solve it up to now. He put it on the test paper this time, just want to see if there are new ideas, and there is no expectation that someone can answer it.

In anger, he directly picked up Yang Xuan's paper and looked at it.

As soon as he glanced at it, his expression completely changed.

Yang Xuan's answers to the first two questions are completely correct.

"This impossible!" Zhang Heng was shocked and couldn't add to it. Even for the first two questions, even if he didn't know the specific method, it would take a lot of effort to solve them.

But Yang Xuan was able to get it right in a very short time, and he didn’t even understand the methods used for a while. I am afraid that his knowledge in arithmetic has left him far behind. Rear.

In shock, he took Yang Xuan's paper and returned to the other people. After a little explanation, the eyes of the old men were all cast over.

Then Zhang Heng turned back into the back of the screen under the gaze of several people.

After a while, he came out to Yang Xuan again: "Young Master Ren, please come with me."

After that, he took Yang Xuan directly into the back of the screen.

Everyone in the hall looked at each other in blank dismay, some not knowing what to do.

After bypassing the screen, Yang Xuan realized that there was actually no one inside, but a door.

As Zhang Heng pushed the door and entered, inside was a relatively small room. There were already several people in the room at this time, and several people were guarding it. There was also a door with a curtain hanging down. Clear the situation inside.

Yang Xuan wanted to use divine sense to scan, but after thinking about it, let’s forget it.

"Young Master is highly talented and outstanding in literary talent. I can't imagine that he has such a deep knowledge in a number of arts."

An old female voice came from behind the curtain, saying Speed ​​is slow and peaceful, but full of this irresistible.

Yang Xuan heart shivered with cold, there seemed to be a trace of Heaven and Earth Might in this voice, which made his blood almost clot.

Spiritual Qi spins slightly. After eliminating this strange feeling, he slowly said: "Thank you!"

He has a feeling that the woman behind the curtain absolutely knows His identity.

"Young Master said, "I know the length of the shadow and the height can be measured, but I don't know how it is?" the person behind the curtain asked.

Yang Xuan did not hide it, and said cleanly: "Choose a day when there is sunshine, put a wooden stick on the ground, measure the shadow length of the stick, and then measure the height of the pillar shadow, then the stick length will be twice as long. The number that Yu Yingchang gets is the same as the number of pillars that are twice as long as its shadow."

The room fell silent. After a while, Zhang Hengmeng patted his thigh: "Yes, how did I didn't? t expect ."

The person behind the curtain made a voice: "Feasible?"

Zhang Heng flushed with excitement: "Feasible, feasible, no no no, absolutely feasible. "

He ran in front of Yang Xuan, excitedly took Yang Xuan's hand and shook violently: "Thank you, thank you..."

Yang Xuan can understand his feelings, wait Those who are intensively studying the number of skills are a bit paranoid, and the excitement and joy when a difficult problem they have been thinking about is solved easily, ordinary people are unimaginable.

The person behind the curtain sighed and said: "Young Master is really talented, then, what is the method of knowing the circle and measuring straightness?"

Yang Xuan smiled, but did not answer , Just smiled.

This involves Pi, how can he easily tell others?

"What does Young Master want?" When the person behind the curtain saw Yang Xuan smile, he knew that he wanted to buy it.

"What do you exchange for?" Yang Xuan didn't go around, he was straightforward.

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