I Just Want to Be a Quiet Top Student

This game was clearly designed, the author of the question limited some conditions, and also set traps.

A large number of calculations need to be completed quickly in a short period of time.

Most poker enthusiasts can figure out the results if the answering time is extended to 10 minutes.

But the young students in the math camp have only a dozen seconds, no pen, paper or computer. Their only tool is their brain and their sensitivity to numbers.

"Wait a minute, give me some more time, and I'll figure it out soon." Zhou Yu'an's forehead was covered with sweat, and the quick calculation of the winner or loser of the Landlords game consumed a lot of his brain cells.

"Next question!" Sun Erxiong waved his hand, and a new question appeared on the screen.

"Damn." Zhou Yu'an made half of the calculations, and there was nothing, nothing.

Entering the mathematics major test, the pace of answering questions is too fast, and there is no time for the students to ponder.

Shen Qi rubbed his temples, staring at the projection screen in front of him with rounded eyes.

The second question is described as follows: "Scenario assumption: There are five prisoners in the prison, and the numbers on their prison uniforms are 1-5."

"The warden brought five prisoners to the gallows and said, I will play a game with you. The one who wins will be released immediately, and the one who loses will be executed on the spot."

"There are 100 beans in this sack. The rules of the game are that you take turns catching beans in the sack in the order of numbers 1-5. Each person can only catch one bean, and each time you catch at least one bean."

"Listen well, the person who catches the most and the fewest number of beans will be executed on the spot. The rest will leave alive."

"You are not allowed to communicate with each other, even eye contact is not allowed. However, when you are touching the beans, you are allowed to find out the number of beans left in the sack."

"It is not necessary to divide all 100 beans. If there is a tie for the largest or smallest bean, those who are tied will be executed together."

The topic is gone here.

The atmosphere in the classroom was extremely tense. After the test of the first math major test question, all the students knew that they only had a few seconds to quickly read and understand the meaning of the question.

After Shen Qi reviewed the questions, he had a measure in mind.

This question is similar to the IMO logic question. It is not a simple numerical calculation. In fact, the numerical calculation part is very simple, and the difficult part is logical reasoning.

Instructor Sun gave a hypothetical scenario but did not ask any questions yet. Shen Qi guessed that the question was probably which of the five prisoners had the highest survival rate?

"Everyone, here comes the problem. Please be prepared." Ten seconds later, Sun Erxiong broke the silence, "These five prisoners are all smart people. Their principle is to save their lives before harming other prisoners. So, please, Among the five prisoners, who has the highest probability of leaving the prison alive? I will give you another ten seconds to think."

Ten seconds passed quickly.

Sun Erxiong said hurriedly: "Please raise your hands!"

brush!

brush!

This time without a doubt, Shen Qi raised his hand first.

The second person to raise his hand was Zhou Yu'an. He was a second or two behind Shen Qi, which could be clearly distinguished by the naked eyes of the instructor and assistants.

After all, Zhou Yu'an is a genuine player who has been selected for the Olympiad national team. IMO won the individual gold medal. Although he is not a perfect score for the gold medal, his logical ability is considered relatively good.

"Damn..." Zhou Yu'an was sitting next to Shen Qi, and he could see that he raised his hands slower than Shen Qi.

Shen Qi raised his right arm and glanced at Ouye who answered the first question correctly.

Ouye frowned and did not raise his hand.

"Shen Qi, please give your answer. Among the five prisoners, who has the highest probability of survival?" Sun Erxiong looked at Shen Qi.

Shen Qi said confidently: "My answer is that prisoners No. 1, No. 2, and No. 3 have the highest probability of leaving alive. In fact, drawing lots in this order is not fair, but there is no fairness in the prison."

"Then Shen Qi, what is your basis?" Sun Erxiong said noncommittally.

Shen Qi explained: "All the prisoners are smart people, and their principle is to save their lives before killing others, so prisoners No. 1, No. 2, and No. 3 all grabbed 17 beans, and the three of them have the greatest hope of surviving." .No. 4 and No. 5 are the backs, and there is nothing to do if their lives are not good."

"Correct answer, Shen Qi gets 10 points, and everyone else gets 0 points." Sun Erxiong expressed his affirmation, and then asked other students: "Do you understand Shen Qi's logic?"

"Oh, that's how it is."

"Yes, that's the operation."

"Give me another minute, and I can deduce it."

The students in the math camp are all smart people, Shen Qi throws out the introduction, and they understand it in seconds.

"Ah, what a pity, the answer I deduced is exactly the same as Shen Qi and you, it's just a little late to raise your hand." Zhou Yu'an beat her chest and stamped her feet.

"Zhou Yu'an, you're just a robot who complains." Shen Qi massaged the eyelids and made some adjustments.

"As of now, Shen Qi and Ouye have scored 10 points each, let's move on to the next question." Sun Erxiong didn't give the students any time to rest.

A question is updated on the projection screen: "Today there are 2 horses, 3 cows and 4 sheep, and the total price of each of them is less than 10,000 Wen. If 2 horses plus 1 cow, or 3 cows plus 1 One sheep, or four sheep plus one horse, the total price of each of them is exactly 10,000 Wen. Ask: How much is the unit price of a horse, a cow, and a sheep?”

Fuck?

This question is very very simple.

Compared to the first two questions, Shen Qi couldn't even believe the simplicity of the third question.

"The question has been released, please raise your hand to answer immediately!" Sun Erxiong said urgently.

Brush!

Swipe!

More than a dozen arms were raised one after another.

This question is actually a ternary linear equation system, assuming that the unit prices of horses, cattle, and sheep are x, y, and z, and then mentally calculate the values ​​​​of x, y, and z.

This question is not compared to the reserves of mathematical knowledge, nor is it the logical reasoning ability of nine twists and eighteen bends.

It is the purest form of numerical calculation, and arithmetic is a part of mathematics, the most basic part.

If there is enough time, junior high school students can also calculate the values ​​of x, y, and z.

Calculating the result in a few seconds is the quick calculation ability.

As soon as Shen Qi was distracted, he raised his hand slowly.

At least ten people raised their hands before him.

"Ouye raised his hand first, please answer Ouye." Sun Erxiong said, then glanced at the assistant: "Xiaoqian, who did you observe raised his hand first?"

"Ouye raised his hand first, Zhou Yu'an was second, and Wang Sheng was third. I don't remember the latter." Assistant Xiaoqian replied.

After confirming, Sun Erxiong said: "Ouye, please give your answer."

Ouye's speech was neither fast nor slow: "Three thousand six horses, two thousand eight cows, one thousand six sheep."

Sun Erxiong: "If the answer is correct, Ouye will get another 10 points!"

The rest of the students did not have any objection to this set of answers. They got the same results in their mental calculations, but the calculation speed was a bit slower.

"Ouye, this girl scored 20 points! And I still have 0 points, I feel sorry for myself." Zhou Yu'an complained to himself.

Shen Qi, currently ranked second with 10 points, said: "According to my observation, Ouye's comprehensive logic ability is estimated to be average, but her calculation ability is very strong and her reaction is very fast."

Zhou Yu'an: "Shen Qi, you have met your opponent. Sister Ouye is actually a calculating girl."