Xu Mang opened Shi Jie's notebook in the team, connected to the hotel's wireless network, and downloaded PUMAC questions from the past ten years. Together with Professor Wu, he wanted to make a systematic summary of all the questions in the past ten years, and then based on probability

Learn and calculate the probability of tomorrow's question.

"Based on previous years' experience, the first ten questions are for free points, and the last five questions are for free propositions, so the key to victory is the thirty-five questions in the middle." Professor Wu said: "Geometry and number theory account for 8%.

Ten, algebraic problems only account for twenty percent.”

"so."

"We will strengthen the analysis of geometry and number theory." Professor Wu said: "Xiao Xu, is your number theory good?"

"ah?"

"It's not bad." Xu Mang nodded and said silently: "But Professor, I think the proportion of questions will change a lot this year."

"oh?"

"Tell me what you think." Professor Wu asked curiously.

"I carefully looked at the questions from the past ten years." Xu Mang frowned and said, "The first three years were very targeted, but starting from the fourth year, the questions became a little weird, until the seventh year.

, and began to develop comprehensively.”

"Especially for last year's questions, the ratio of singleness to comprehensiveness was 30-70." Xu Mang said: "I think this year's questions are either 30-70, or 28."

"Um!"

"If it is comprehensive, then it will be difficult to answer the questions." Professor Wu said: "I have heard before that the current trend is to cultivate students' comprehensive abilities, especially in the field of mathematics."

Xu Mang has also heard of this argument, and he particularly believes in it, although it goes against the so-called superiority of a single one and directly emphasizes its comprehensive benefits.

But in Xu Mang's explanation, science is the basis of human development, and mathematics is the basis of scientific development. Take my own physics as an example, knowing only geometry is really useless, and sometimes combinations must be used.

noon,

After having lunch with the members of the representative team, Xu Mang stayed in the hotel room, constantly trying out the possibilities of tomorrow's topic.

Then,

Autistic.

"Can the system tell me tomorrow's question?"

【cannot】

"Can the system tell me and Xiaoman whether the child is a boy or a girl?"

【able】

Xu Mang:Σ(｀д′*ノ)ノ

Damn it!

Your system is very broken!

You can tell me the gender of your future child, but you can’t tell me tomorrow’s topic?

Xu Mang was so angry. What was originally a joke was replaced by heart-piercing pain.

Oops

My heart feels so cold.

In the end, Xu Mang gave up on the unwise approach of guessing a hundred questions. From a probability perspective, the possibility was too small, so they should rely on their own strength.

certainly,

It is impossible to predict the overall situation, but Xu Mang can accurately attack the local area. For example, the last five big questions add up to ten.

If you rely on scientific means, you can guess three out of ten questions correctly, or even more questions.

"Let's work!"

When Yang Xiaoman came back from shopping, she saw Xu Mang sleeping soundly in front of the computer, and couldn't help showing a helpless expression.

"I guess my account has been blocked again." Yang Xiaoman sighed: "You are so bad at playing games."

I took a blanket and was about to put it on Xu Mang's body. I immediately saw ten math problems on the laptop screen.

"well?"

"What's this?"

Yang Xiaoman was stunned for a moment and carefully observed these ten math questions. In fact, they were not math questions, because there were no numbers on them, they were all pure words.

The first big question,

The combination of number theory and geometry is likely to appear

Yang Xiaoman:(￣△￣;)

What the hell?
Chapter completed!