"Tell me, what's the problem?"

When I saw many diners looking at the counter, the waiter's face instantly became hot.

Are the current students so dragged?

However, he still maintained a professional smile, and explained to Tang Long with strong displeasure: "The prices of all the dishes in our store have been approved by the Price Bureau, and there will be no problems at all......

"I don't think so."

Tang Long crossed his waist, and then talked eloquently: "First of all, your store's sauce-flavored flower belly rice and red dates and black rice dew are thirty yuan; Chestnut stewed chicken rice and original pot chicken soup are 28 yuan; Yun Ear Steamed Chicken Rice and Original Rice Chicken Soup are 25 yuan...... Actually, it's a combination of three main dishes and three side dishes! ”

"Aha...... That's true......"

Tang Long's speech made the waiter brother even more dizzy, he smiled awkwardly, and was stunned for a while before asking in a low voice: "Then, what do you want to express?" ”

Tang Long shrugged his shoulders, he did not respond positively to the little brother's words, but continued to explain: "In addition, we can know from the information on the menu that the sauce fragrant Hua Nan rice is twenty-two yuan, the chestnut stewed chicken rice is twenty yuan, and the cloud ear steamed chicken rice is fifteen yuan. ”

Although he didn't understand the purpose of the young man in front of him, the waiter still maintained the petrified smile just now and said, "That's right...... Any questions? ”

(Relaxation Activity Detected: Inference Analysis!) ）

(Relaxation Rate: 50+)

(Matching skill: Detective Shinichi Kudo!) The host's reasoning and analysis speed, as well as brain holes, will increase by 100%! ）

With the rows of subtitles, slowly popping up in front of his eyes, Tang Long's speed of speech became faster and faster.

"Now your pricing problem is the unit price of the two kinds of free dishes."

He pushed his glasses and explained calmly: "Although, you didn't announce the unit price of the side dishes; However, by setting a simple system of equations, I was able to easily solve the unit price of red dates, black rice dew, and original local chicken soup. ”

“……”

As soon as Tang Long's voice fell, the waiter's little brother's smile also froze. He was so stuck in his throat that he couldn't say anything.

You young man, you look so good-eyed, I didn't expect your heart to be so vicious.

How much money did the store next door give you to come over and splash dirty water? Can't we give double!

It's not easy for us to be workers.

Are you trying to make me unemployed?

"Wow, it's Tang Long's little brother!"

Just as Tang Long was speaking, many students in the store wearing the Ice Emperor school uniform had already recognized him, and for a while, the entire dining area was boiling like boiling water in one hundred degrees.

And Guan Yao, who was on the side, also hugged his elbows and thought seriously. She felt that Tang Long's words seemed to make sense.

"Here I set the unit price of red dates and black rice dew to be x yuan, and the unit price of the original cup of local chicken soup is y yuan, and I get three one-time equations, which are combined into a system of one-time equations."

But Tang Long turned a deaf ear to the sounds around him, his thoughts shuttled as fast as electricity, and his mouth was like a submachine gun shooting wildly: "Through a wave of calculations, I finally got an X value, that is, the unit price of red dates and black rice dew is eight yuan." ”

"But there are two values of y, which are eight and ten......"

"That is to say, your red dates and black rice dew can be sold for both eight yuan and ten yuan......

In a system of equations, it is impossible to achieve two real roots for the same y, which leads to another problem, that is, will there be imaginary roots in the unit price of your red dates and black rice dew?

It is impossible for a system of unary equations to solve the root of an imaginary number...... Well, there is only one truth, there is definitely a problem with your pricing! ”

"I ...... What the hell am I ...... Assi! ”

The waiter's face was flushed.

He was a shallow learner, but he was speechless.

When he was cornered, this poor little brother almost wanted to 'the broom by the cash register, to beat up the annoying school bully in front of him.

I'm also a poor worker, if I can solve your problem, will I still sell fast food here with an awkward smile?

", Tang Long is really cowhide!"

"I'm not here for some fast food, I'm here to show off math!"

"Same nine years, why are you so showy!"

And when he witnessed Tang Long's classmate, the operation of the Potty Flower Show, fans flocked to him.

The scene was on the verge of getting out of control in an instant.

"Store manager, store manager, please come over for a while......" Seeing this situation, the front desk brother suddenly panicked, when he met this kind of wise bear child, what he could do was to shake the pot as soon as possible.

"Hello, is there anything wrong?"

The store manager, dressed in a crisp suit, walked down the stairs elegantly and asked with a smile.

"Manager, are you ......here?"

The little brother whose scalp was numb by Tang Longxiu hurriedly rushed forward and explained the scene just now.

"Oooh......"

But after hearing for a while, the store manager was still a little confused, but he also roughly understood what the little brother meant: "The price of the dishes in our store is certain...... The price of this package is indeed wrong, and it is two dollars more......"

"What do you think?"

Tang Long spread his hands, looked at the store manager and said: "Although two yuan is not a big deal, but as a merchant, if you will make low-level mistakes in this kind of simple pricing, how can consumers choose you?" ”

"Yes, yes!"

The fans on the side also coaxed.

The voice, like a tidal wave, is deafening.

"Yes, yes, yes...... This classmate is right. ”

Seeing that the call was getting stronger and stronger, the embarrassed store manager hurriedly reacted quickly in case business was not good: "The value of the side dishes in our store is eight yuan, and the price of chestnut stewed chicken rice + original cup local chicken soup is wrong, not twenty-five yuan, but twenty-three yuan...... Diners who have just purchased this package can come to the front desk to ask the waiter to refund two yuan with the invoice. ”

"It makes sense."

Tang Long shrugged his shoulders, turned his head to Guan Yao and said, "Why don't we ...... Let's order the chestnut stewed chicken rice and the original cup of local chicken soup, and then count the discounts, you can save a total of nine yuan. ”

"Okay, listen to you."

Guan Yao took out her mobile phone and scanned the code to buy two packages.

"By the way, Comrade Store Manager, I have a copy of "Wonderful Mathematics" here, I suggest you study it well."

Tang Long took out a reference book from his bag, and said to the trembling store manager: "It's always good to live and learn, learn more......

"No, no, no......"

The store manager's smile was even more embarrassing.

He rubbed his face in embarrassment, and secretly scolded this nosy scholar.

Learn from your sister, don't you give me face.

Are all high school students so underwhelmed now?