Li Jing said slowly: "Set up to walk X kilometers and make money for Y yuan, because the maximum amount of 60 kilograms to carry each time is 1 kilogram, and each kilometer must consume 1 kilogram of water, therefore, he can only run 30 kilometers at most, run 4 times, and he doesn't make money, so this question is looking for shadow area." ”

Yun Fan couldn't slow down a little: "Wait, how do you know this?" ”

As a heavenly king, how can you know so much about modern mathematics?

"I checked it on Sogou on my mobile phone." Li Jing said with a bitter face: "But this shadow area can't be found, woo, how should I calculate, no, it's too difficult." ”

Yun Fan silently patted him on the shoulder and comforted: "At least you know Sogou, and I won't know the shadow area." ”

Is it so hard to do math in elementary school now? Yun Fan complained in his heart.

"Administrator." Li Jing said with tears in his eyes, and stood up again and shouted: "I don't accept it, I think my Li Jing's three sons, the eldest son Jin Zha is a disciple of Manjushri Guangfa Tianzun, the second son Muzha is a disciple of Guanyin Bodhisattva, and the third son Nezha is also a disciple of Taiyi Tianzun, all of them are taught by famous teachers, why can't I do it once I come here, I don't accept it!" ”

Hearing this, Yun Fan wiped his cold sweat and was also drunk!

"Let's not talk about that." Yun Fan changed the subject, almost forgetting about business.

"Heavenly King, do you have any books to study in your cram school?" Yun Fan asked.

"Books for study?" Li Jing asked, "What kind of study books?" ”

"It's Chinese and mathematics or something, of course, it's best to have books about modern literature and the like, I want Yang Jian to learn about them, do you have them here?"

Li Jing nodded and said: "Yes, there is, in order to open a cram school, I also took a good look at the mortal world, I bought some of these books, but I haven't been able to use them." ”

Of course not, you teach elementary school students, and they can read these literary books?

"That's a good feeling." Yun Fan said with a smile.

Then. Dozens of figures appeared in front of Yun Fan, including Fairy Qiongxiao and Fairy Bixiao, all the immortals on the street came (except for Taishang Laojun), and of course Bai Ying'er. But she's just here to join in the fun.

"Administrator, we're coming!" Yang Jian shouted.

Yun Fan glanced at them lightly: "Are they all here?" ”

"Hmm."

Everyone nodded in unison.

"That's good!" Yun Fan said: "Come in with me!" When the words fell, he walked in with everyone, no, all the immortals.

In the Chentang cram school, Yun Fan looked at the dozens of tables and chairs in front of him. There is also a small blackboard, nodding silently, it seems to be very well equipped.

"Heavenly King, where are those books you are talking about?" Yun Fan looked at Li Jing and asked.

"Right there!" Li Jing pointed ahead, where there was a small bookcase.

Yun Fansheng stepped forward, took down a book, opened it and looked at it, well, the content is also very good.

Then next

Yun Fan turned around and said to Yang Jian, "Come." Find a seat and sit down, I have something to say. ”

"Oh!" All the immortals responded to it, and they all did it on the desks and chairs.

"Hey, why are you so obedient today?" Yun Fan was surprised, what a strange scene!

Nonsense! The immortals cursed in their hearts, why did you threaten us with rent (salary), can you not do it, hateful mortal.

Yun Fan smiled: "Okay, I solemnly tell you, tomorrow there will be a teacher who will come to the street to teach you to learn." ”

"Studying?" Yuding Zhenren was stunned for a moment, and snorted: "Just rely on my knowledge." Who else in this world has taught me? ”

Yun Fan was embarrassed: "Real person, don't interject, let me continue." ”

"Oh!"

"How much do you know about modern culture?" Yun Fan asked.

"I know how to use my phone!" Yang Jian replied.

"Me too."

"Me too."

Xuanzang and Yuding also said.

Bi Xiao raised her hand happily: "I can use the computer, better than them." ”

"That's not what I'm talking about." Yun Fan was speechless, "What I'm asking about your understanding of the current knowledge of the law. It's not about computers or anything. ”

"Then I don't know." Qiong Xiao shrugged his shoulders and asked, "Administrator, why do you want to ask this teacher to teach us modern knowledge and law?" ”

"Not bad!" Yun Fan replied: "The teacher will come tomorrow, so I want to tell you in advance, don't make any mess then?" ”

"Is it fun to learn?" Yang Jian asked, watching Yun Fan and the administrator and Bai Ying'er go to school all the time. I just don't know if it's fun?

"It's nothing to do with playing!" Three black lines floated over Yunfan's head, play and play, you know how to play, security guard, you are a fairy, can you be reliable!

"Amitabha, Administrator, we don't think this study is necessary at all." Xuanzang said.

"Why?"

"Because the poor monks and others have lived for thousands of years no matter what they say, they must know this knowledge and culture, and there is no need to learn."

"Oh, really?" Yun Fan raised his eyebrows and said with a smile: "Then how about I test you?" ”

"Absolutely!" Yuding shook off the dust, full of confidence.

"Okay, Heavenly King, you can repeat the math problem just now!" Yunfan Road.

Li Jian said: "There is a person who has 260 kilograms of water, he wants to transport it to arid areas to make money, but he carries up to 60 kilograms each time, and consumes 1 kilogram of water every kilometer forward, assuming that the price of water is 0 at the place of departure, and later, it is proportional to the transportation distance, that is, 10 yuan/kg at 10 kilometers, 20 yuan/kg at 20 kilometers and assuming that he must return safely, may I ask, what is the shadow area of this person?" ”

(⊙o⊙)" The eyes of the crowd widened and they were a little overwhelmed!

Yang Jian scratched his head and was puzzled: "What does this have to do with the shadow area?" ”

Yuding sat and looked to the right, and glanced at Xuanzang again, his face full of doubts.

Bixiao held her mouth and said: "Isn't it just to transport water, it's better to install a water pipe, and it will pass all at once, how simple!" ”

Yun Fan wiped his cold sweat: "Fairy, I'm talking about asking for a shadow area, and it has nothing to do with sending water." ”

"Then I don't know." Bi Xiao twisted his head, not looking at Yunfan.

And Yun Fan also asked the immortals, "How is it, have you asked for it?" ”

"No, it won't."

"I don't know."

"I don't understand it at all!"

Yun Fan nodded and smiled: "I know, so I said that you really need a teacher to teach you, do you know who the math problem I just asked was for?" ”

"Who is it for?"

"It's for elementary school students." Yun Fan continued to laugh.

"Who are the elementary school students?"

Yes, it's far away, Yun Fan cleared his throat and said: "Don't ask about this, do you know what a saying is in the world now, it's terrible to be uneducated, it's you now!" ”

As soon as these words came out, the immortals blushed, who knew that this topic would be so difficult!

The update is late, please forgive me! (To be continued.) )