"Okay, this method is the most fair, so let's follow the concubine's method." Lin Sen naturally wouldn't be afraid of the other party.

It seems that it's time for you to experience the horror of the Olympiad questions, well, let's start with the difficulty of the Olympiad questions in elementary school, don't say that we bully you, after all, I have also participated in the high school Olympiad and entered the top 100 in the district.

"Let's ask the concubine to come up with the question first." Lin Sen said with a calm smile.

Let's see what level you are first.,If our question comes up, it's going to stump you.,How embarrassing is this.,I have to save some face for you.。

"Okay, so let's make a simple one first, and look at everyone's foundation." Kong Yingda agreed without giving in.

"I don't know how many things there are today, the remaining two of the three or three numbers, the remaining four of the five or five numbers, and the remaining one of the seven or seven numbers, ask the geometry of the object?" Kong Yingda gave a question after a little pondering.

"Twenty-nine!" Xi Junmai replied almost without thinking.

And that disciple of Kong Yingda, let's call it a bearded man, for this kind of guy who is doomed to failure, Lin Sen is not that interested in getting to know the opponent seriously.

After thinking about it carefully, the bearded man also gave the same answer, although it was much slower than Xi Jun's purchase, but his face was quite calm.

Kong Yingda announced that the two of them answered correctly, which is a tie, but this speed, is it a bit worse?

Lin Sen didn't care about this, should he give Kong Yingda a face, if he kept hanging zero, it wouldn't look good.

As for the question itself, it is really relatively simple, this is a classic problem from "Nine Chapters of Arithmetic", of course, it is still slightly changed from the original text.

It's not bad that bearded man can answer in a short time, because although the Ming arithmetic subject is known as the arithmetic, in fact, it is more about the rote memorization ability of the test.

This kind of problem is simpler for Lin Sen and Xi Junmai, as well as Xi Junqing, the master and apprentice, because in the story of the great mathematician Hua Luogeng in later generations, there is an allusion that his teacher judged that he had mathematical talent through this question.

Therefore, those math teachers in later generations like to raise this question in class, and Lin Sen is of course no exception, and he has also tested Xi Junmai and his brothers, which is naturally very simple for them.

However, for those who have not been exposed to such problems, the difficulty of this topic is a bit desperate. And there are other answers to this question, but there is no need to continue to calculate.

"Then it's the kid's turn to come up with the question, and I'll make a simple one."

Lin Sen couldn't help but smile evilly, oh, at the elementary school Olympiad level, it's okay.

"Now there is a pond that flows sixty squares of water every quarter of an hour. If five sluices are opened, the pond will be emptied in an hour and a quarter of an hour. If eight sluices are opened, the pool will be emptied in six quarters of an hour.

Q: Now that the twelve sluices are opened, how long does it take to empty the water? Lin Sen finished speaking with a smile, waiting for the two to give an answer, of course, this time he asked the two to write it on paper.

"About half an hour." Xi Junmai replied almost without thinking.

And the poor beard, it seems that he has been tossed a lot, scratching his scalp and scratching his beard, which makes people feel anxious for him. It took almost an hour before the answer came.

"My inferior apprentice is lucky to have the same answer as your apprentice, it seems that the foundation is still reluctant, or I will temporarily exchange my strength here today."

Lin Sen said this is modest enough, of course, Kong Yingda and they listen, it must not be a taste, this is full of sarcasm and sarcasm, and it must not be admitted like this.

"Lang Jun also said that these are just basics, let's have some slightly difficult questions to see how they understand arithmetic."

Kong Yingda is still a little unconvinced, maybe your question is something that you have taught students before, and it is not normal for your students to answer.

But the questions I came up with are only the most basic questions in the scriptures, and I suffer a little bit in comparison, and I don't believe that you can still know the really difficult questions.

"This ...... All right. Lin Sen pretended to be embarrassed and replied, but in his heart, he actually had the same idea as Kong Yingda, and it seemed that he had to escalate the difficulty.

"Why don't we add a time limit, if you can't answer a question within half an hour, you will be punished as a failure, what do you think?"

Of course, Lin Sen also has to add a restriction, if you don't count a question for a day or two, go back and discuss it, then what kind of fun is it, you can't soak in these days of hard work, just for a competition with no color.

"Okay." Kong Yingda glanced at Lin Sen deeply, and replied with some resentment. Who let the bearded man answer the question so long?

The next question is naturally Kong Yingda, and this time the question is still very classic, the problem of chickens and rabbits in the same cage.

The situation was still similar to before, Xi Junmai gave the answer without thinking, and the beard grinded for a while.

But people still insist on a draw, Lin Sen feels that it is indeed time to increase the difficulty a little, first of all, let's have a binary equation application problem, in fact, it is similar to the problem of the same cage of chickens and rabbits, just a different form.

"Uncle Wang owns 25 acres of land, and this spring he switched to planting two spices, chili pepper and cumin, and shared 44 copper coins.

Among them, it took 1,700 yuan per mu to plant peppers, and 2,600 yuan was used to obtain a net profit, and 1,800 yuan per mu was used to plant cumin, and 2,600 yuan was also obtained.

Question: How much net profit did Uncle Wang get in total? Lin Sen asked with a light smile.

At this time, it reflects the problem of the lack of bearded machine changes, or the core idea of this binary equation has not been learned, and it seems that it will take some time to figure it out.

After Xi Junmai gave an answer easily, the poor beard pulled off a small handful of his beard, but he still couldn't give an answer within half an hour, and this game was naturally no longer a draw.

Unconvinced, Kong Yingda did not give up, and came up with another classic question, which also came from the question of how far apart was in "Nine Chapters of Arithmetic".

If the truck is loaded with rice, the journey is 25 miles a day, and if the rice is not loaded, the journey is 35 miles a day, and it can be returned three times in five days. Q: How many miles are there between A and B?

The result is still the so-called "tie".

In this way, Lin Sen's question has become very important, after this question is to fight for three rounds, if the bearded man can't answer this game, Lin Sen's side is two wins in three games, and there is basically no need to compare.

I'm afraid that with the thickness of their faces, it's hard to insist that they haven't lost.

Therefore, Lin Sen decided that it was better to just let them lose their hearts, and it was time to use the binary quadratic equation.

"Today, there is a rectangular field with an area of 96 square feet, and we all know that the area of a rectangle is the length times the width.

If you reduce its length by 1 foot and increase its width by 2 feet, the area of the new rectangle will be increased by 14 square feet compared to the area of the original rectangle, and ask what is the length and width of the original rectangular field. ”

Lin Sen deliberately added this sentence that the area of the rectangle is long times wide, just because he was afraid that the other party would not know, and the other party in the province would not be convinced.

The contrast in the subsequent scene can be said to be obvious, Xi Junmai calmly answered the question step by step, and quickly wrote down the answer on the paper, Kong Yingda They only need to check it a little, and they will understand that this answer must be correct.

And the poor beard, this tangled, the hair and beard, Lin Sen felt sorry for him, and he didn't answer the other question, and then turned himself into a Mediterranean.

Finally, an hour passed, and the unlucky kid still didn't give an answer, needless to say that Lin Sen and they must have won.

It's just that this bearded man is obviously still immersed in the topic and can't extricate himself, this shouldn't be fascinated, if he turns white overnight, Lin Sen's sin will be great.

But the result of this competition is self-evident, Lin Sen was about to leave a few words of hello, hello, hello, everyone, and leave, but another person stood up on the other side.