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Chapter 103 An Interesting Math Problem 【Please recommend! ! 】

"Today, let's do an interesting math problem!"

While talking, Old Tang drew a 5*5 grid on the blackboard.

Old Tang pointed to the grid on the blackboard and said, "The requirements of the topic are as follows. In this 5*5 grid, fill in a total of 1 numbers from 25 to 25. Make each row, each column, and each item The sum of the 5 numbers on the diagonal is equal!"

"Did everyone understand the question? The question must be completed only if the sum of each row, column, and diagonal line is equal to the twelve groups of numbers." Old Tang continued with a smile on his face. "This is a thought-provoking question. It doesn't require complicated steps to solve the problem. Everyone can try it. The first one to do it will have the priority to get the math simulation paper I just released! And myself free review opportunity!"

Everyone’s mouths twitched.

Teacher, your reward is a bit...fresh and refined!

Although they were not interested in the reward that Old Tang proposed, it did not stop them from seeking knowledge on this subject.

25 consecutive numbers, fill in a 5*5 square.

In terms of possibilities, there are 1.5511210043331 × 10^25 possibilities.

If you try one by one, it is definitely a lifetime series.

Therefore, we must find another way.Use divergent thinking to think about problems.

There must be a simple solution to the problem, it just depends on whether they can think of it.

Mu Leng frowned lightly, staring at the 5*5 grid drawn on the draft paper in a daze.There is no clue in my head.

"What's the rule?" Mu Leng murmured softly.

Su Xiaoxiao, who was sitting on the side, didn't have a solution to the problem at all, blinking her big watery eyes, looking at Mu Leng.

"Mu Leng, do you have any ideas?" Su Xiaoxiao looked expectant.

Mu Leng smiled wryly and shook his head, "My head is a mess, I don't have any clue at all."

"Huh? Is this question so difficult?" Su Xiaoxiaoqing said, as a scumbag in elementary school, all the questions were of the same difficulty, so she didn't feel much.

Seeing that Mu Leng said it was difficult, it should be very difficult!She is such a scumbag in elementary school, she can only look up to her.

"Fortunately, I didn't waste my time in vain." Su Xiaoxiao praised her wit.

Others say I am melon, but in fact I am not melon at all!

Su Xiaoxiao put her hand on her chin and said with bright eyes, "Hey, Mu Leng, tell me, can Cheng Nuo know this question?"

"He..." Mu Leng remembered how surprised Cheng Nuo had given him recently, and smiled lightly, "He should know."

…………

On the podium, Comrade Old Tang sat with his eyes squinted.

With a thermos cup in one hand, he blows hot air with his mouth.

What is placed in the thermos cup is not tea, but wolfberry, angelica and other traditional Chinese medicines that nourish the stomach.

Old Tang took a sip happily, and couldn't help but chant a little poem in his heart.

People in middle age have to soak medlar in a thermos.

The wolfberry is hard to stop the years, so add some angelica to the cup.

Angelica can't stop the time knife, ginseng antler with small burn.

Although the small roast is good, velvet antler is expensive, but leeks and kidneys are more affordable.

Although leeks and kidney flowers are affordable, Huiyuan Shenbao still has to feed them.

Huiyuan Shenbao is not tasty enough, but the bullwhip and deer whip can reach the stomach.

Bullwhip and deerwhip are a bit crazy, and they have to eat Huang Shanghuang.

Cough cough, it's getting too far, it's a little too far...

Old Tang put the thermos cup on the table, opened his squinted eyes, and looked at the people under the podium.

The students were all obsessively calculating.Some people have filled three or four sheets of paper.

On Mu Leng's side, he also had some thoughts.

Since the sum of each row and column is equal to a fixed number.Then this fixed number is easier to calculate. Add up all the 1 numbers from 25 to 25, and then divide by 5, which is the fixed number - 65!

then……

Then Mu Leng got stuck!I was stuck for five or six minutes without any progress.

A very tragic ending.

On the podium, Old Tang looked around with satisfaction.

Suddenly, when his eyes glanced at a corner, his face became a little unnatural.

Because he clearly saw Cheng Nuo sitting in the corner... memorizing words!

Old Tang remembered that he told Cheng Nuo that in math class, after completing the tasks he assigned, he could review other subjects.

Could it be...Cheng Nuo has already figured out this problem?
impossible!If you don't know that rule, there is no reason to think of the correct answer in such a short time!
Old Tang was puzzled.

Old Tang stood up and clapped his hands to attract everyone's attention.

"Have you made any?" Old Tang asked with a smile. "If you make it, you can come up and try it."

Most of the answers are shaking their heads.

Old Tang gradually turned his attention to Cheng Nuo.

Cheng Nuo, who was memorizing words in a low voice, suddenly felt his anus tighten. When he raised his head, he saw Old Tang's smiling face.

"Cheng Nuo, have you figured out the answer to this question?" Old Tang said with a smile.

"Hmm~, if any other students succeed, please give them this precious opportunity. A set of mathematics test papers means nothing to me. Because I have no room for improvement in the field of high school mathematics." Cheng Nuo shook his head and spoke with a sigh.

The whole class + Old Tang: "..."

This forced... pretending really impressed me!

Give you 1024 likes, plus a website!
Comrade Tang coughed unnaturally, and after a few seconds he recovered his normal expression and asked the whole class, "Apart from Cheng Nuo, do you know this question?"

At this time, the whole class really wanted to say yes.A good slap in the face of Cheng Nuo.

But how...

I can’t keep up with my IQ!

My scalp was about to explode from thinking about it, but I still... didn't come up with any feasible solution to the problem.

Now they all felt that their heads were of the same brand as Cheng Nuo's!

Why is Cheng Nuo's brain so smart and wise...

And my own brain is not as useful as Naiko!
It was within Old Tang's expectation that no one responded.It is normal for no one to solve this question within ten minutes.

As for Cheng Nuo...

Well, this guy is not included in the sequence of normal people.

"Since no one raised their hands, you can come up and do this question." Old Tang said helplessly.

"OK!"

Cheng Nuo smiled faintly and stood up from his seat.

He walked up to the podium with a very cool gait.

If there is another BGM at this time, it will be even better!

"Invincible is so, so lonely ~ Invincible is so, so empty ~ alone in the cold wind, let the cold wind blow by~"

How about it? Do you think this BGM matches well?
Old Tang made a gesture of invitation to Cheng Nuo.

Cheng Nuo picked up a piece of chalk with a faint smile on his lips.

"Isn't it just a Rubik's Cube Matrix? Simple!"

........................

Call friends for recommendations! !Rivers and lakes emergency! !

(End of this chapter)