Zhizhang Datang

Chapter 287
"Okay, this method is the most fair, just follow the bastard's method." Naturally, Lin Sen would not be afraid of the other party.

It seems that it's time for you to experience the horror of the Math Olympiad. Well, let's start with the difficulty of the elementary school Math Olympiad. Don't say we bully you. After all, I also participated in the high school Olympiad and entered the top [-] in the district.

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

Let's see what level you are at first. If we come up with a topic, you will be stumped. How embarrassing, do you have to save some face for you?

"Okay, let's make a simple one first, and see everyone's foundation." Kong Yingda agreed without hesitation.

"Today, there are things that I don't know how many are. Two are left when counting three or three, four are left when counting five or five, and one is left when counting seven or seven. How many things are there?" Kong Yingda gave a question after a little thought.

"29!" Xi Junmai replied almost without thinking.

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

After careful consideration, the bearded man also gave the same answer. Although he bought it a lot slower than Xi Jun, his face was quite calm.

Kong Yingda announced that both of them answered correctly, and it was a tie, but isn't this speed a little bit worse?

Lin Sen didn't bother about this, he just took it as a face for Kong Yingda, it wouldn't look good if it kept hanging zero.

As for the question itself, it is really relatively simple. This is a class of classic questions from "Nine Chapters on Arithmetic". Of course, it is slightly changed from the original text.

That bearded man was able to answer the questions in a short period of time, which is considered pretty good, because although the Mining and Arithmetic subject claims to be a test of arithmetic, in fact, it is more about the ability to memorize by rote. There is a high chance of passing it.

This kind of problem is easier for Lin Sen, Xi Junmai, and Xi Junqing, the three masters and apprentices, because in the story of Hua Luogeng, a great mathematician in later generations, his teacher used this question to judge that he has a mathematical talent. allusion.

Therefore, those math teachers of later generations like to ask this question in class, and Lin Sen is of course no exception. He also passed the test of Xi Jun and Mai Ge, and it is naturally very easy for them.

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

"Then it's the kid's turn to come up with a question. Let me make a simple one too."

Lin Sen couldn't help but smile evilly, "Olympiad level for primary school, it's done."

"Today there is a pond that flows sixty square meters of water every quarter of an hour. If five sluices are opened, the water in the pond will be emptied by adding two quarters of an hour to one hour. If eight sluices are opened, the water in the pond will be emptied in six quarters of an hour.

Question: If twelve sluice gates are opened now, how long will it take to empty the water? "Lin Sen finished speaking with a smile, waiting quietly for the two to give their answers. Of course, this time they were asked to write on paper.

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

And that poor bearded man seemed to have been tossed a lot, scratching his scalp and scratching his beard, making people feel anxious for him.After nearly an hour, the answer was given.

"It's a good luck for me, a poor apprentice, to answer the same question as your apprentice. It seems that my foundation is still weak. Why don't I just exchange my strength here for now."

What Lin Sen said was modest enough. Of course, Kong Yingda and the others must have a different taste after listening. This is full of sarcasm, and they must not just admit cowardice like this.

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

Kong Yingda was still a little unconvinced, maybe the question you asked was specially taught to students before, and your students would answer that it is normal.

But the questions I asked are just the most basic questions in the algebra, which is a bit disadvantageous in comparison. I don’t believe you can still understand the really difficult questions.

"This... okay." Lin Sen replied reluctantly, but he actually had the same idea as Kong Yingda in his heart, and it seemed that the difficulty should be upgraded.

"Why don't we add a time limit. If you can't answer a question within half an hour, you will be treated as a failure. What do you think, bastard?"

Of course, Lin Sen also has to add a limit. If this question won’t take you a day or two to discuss and discuss after you go back, then what’s the fun? Let's try the lottery.

"Okay." Kong Yingda took a deep look at Lin Sen, and replied with some displeasure.Who made the bearded man take so long to answer the question just now?

Naturally, Kong Yingda came up with the next question, and this time the question was still very classic, the problem of the chicken and the rabbit in the same cage.

The situation was still the same as before, Xi Junmai gave the answer without thinking, and the bearded man grumbled for a while.

But people insisted on calling it a draw. Lin Sen felt that it was time to increase the difficulty a bit. Let’s start with a quadratic equation application problem. In fact, it is similar to the problem of chicken and rabbit in the same cage, just in a different form.

"Uncle Wang owns 25 acres of land. This spring, he replanted pepper and cumin as spices, and spent 44 copper coins in total.

Among them, [-] renminbi per mu was used to grow chili peppers, and the net profit was [-] renminbi, and [-] renminbi per mu was used to grow fennel, and the net profit was also [-] renminbi.

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

At this time, the problem of the insufficient change of the bearded machine is reflected, or the core idea of ​​the binary linear equation has not been learned. It seems that it will take some time to figure it out.

After Xi Junmai gave the answer easily, the poor bearded man tore off a handful of his beard, but he still couldn't give the answer within half an hour. Naturally, this round is no longer a draw. .

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

Use a car to transport rice from A to B. If the car is loaded with rice, the daily journey is 25 miles. If it is not loaded with rice, the daily journey is 35 miles. You can go back and forth three times in five days.Question: How many miles are there between A and B?

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

In this way, Lin Sen's question becomes very important. After solving this question, he will fight for three rounds. There is no need to compare.

I'm afraid that because of their thick skins, they can't insist on saying that they didn't lose.

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

"Today there is a rectangular site with an area of ​​96 square feet. We all know that the area of ​​a rectangle is the length multiplied by the width.

If its length is reduced by 1 foot and its width is increased by 2 feet, the area of ​​the new rectangle obtained is 14 square feet larger than the area of ​​the original rectangle. What are the length and width of the original rectangle? "

Lin Sen purposely added the phrase that the area of ​​a rectangle is the length multiplied by the width, because he was afraid that the other party would not know, so that the other party would not be convinced to lose.

The following scene can be said to be very contrasting. Xi Junmai calmly answered the questions step by step, and quickly wrote down the answer on paper. Kong Yingda and the others only need to do a little checking and calculation, and they will know that the answer must be correct.

As for the poor bearded man, Lin Sen felt sorry for him because of his tangled hair and beard, so don't let the question go unanswered, and make himself a mere Mediterranean.

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

It's just that this bearded man is obviously still immersed in the topic and can't extricate himself. He shouldn't be fascinated by it. If he turns gray all night, Lin Sen will be guilty of a serious crime.

However, the result of this competition is self-evident. Lin Sen was about to say hello, me, hello, everyone, and then leave, but another one stood up on the other side.

　I usually don't stop updating. After all, we are full-fledged authors. The reason why I say this is to explain why there is no update, and of course to show that I am actually very diligent.Gaining sympathy is impossible. If I want to give a reward, I always say it directly.

　　For the sake of my hard work, should I give some rewards?Of course it should.

　　In addition, open the backstage to take a look at the new additions, it is already lower than the average subscription, I am on the second update...

　　After my hands were frozen and I finally finished coding this chapter, when I saw this again, it was really hard to suppress a feeling of despair.

　　If it wasn't for the idea that I must be a pure man and not be allowed to enter the palace, I'm afraid I couldn't help but cut it in the past few days...

　　
　
(End of this chapter)