"Xiao Langjun, I've eaten well, now I can talk about it." Zheng Yanzhi said with a smile.

With a smile on her pretty face, two pink fists were already hidden in her sleeves, and they were still trembling slightly, Zheng Yanzhi felt that she had been angry for most of the year, not for more than a day.

Lu Ting hiccuped, knowing that the arrogant little girl in front of him was about to explode, so he didn't tease her anymore, and asked while drinking tea: "I took two questions just now, I don't know which one Miss Xiaozhi wants to ask?" ”

"Pheasants in the same cage." Zheng Yanzhi had already thought about it, and this was also a question that had bothered her for the longest time, and she didn't hesitate to say it when she heard it.

"There are many ways to solve this problem, I don't know how many solutions Miss Xiaozhi used?"

What the? Variety? There are many ways to solve this problem?

Zheng Yanzhi was stunned on the spot for a moment, looked at Lu Ting's face, felt that he didn't look like a liar, and hurriedly asked, "Many kinds?" How many are there? Little Woman... There will only be three. ”

The professor who came up with the question mentioned that it took him a day to find three solutions, Lu Ting listened to the question for the first time, and opened his mouth to say that there were many kinds, and Zheng Yanzhi was thundered on the spot, and she was proud for the first time to doubt her ability to calculate.

"Not much, only ten, if you calm down, it's not impossible to think about one or two more." Lu Ting frowned and said.

The problem of chickens and rabbits in the same cage, later generations have also been on TV, two kinds of math teachers compete to take turns to solve, each way can not be the same, and finally there are thirteen methods, too many Lu Ting did not remember them all, and now he only remembers ten relatively simple and interesting methods.

"Ten... Ten? Zheng Yanzhi's eyes were as big as a bull's eye, and she couldn't speak.

I scratched my scalp before I came up with three, the professor who came up with the question said that he had four solutions, Lu Ting opened his mouth and said ten, and said that he could do more by calming down, is this person a genius or a freak?

If it weren't for Lu Ting's performance being too amazing, Zheng Yanzhi would have laughed at him on the spot, hesitated when she heard the words, and quickly said with an anxious face: "Xiao Langjun, can you... Teach the slave family. ”

Thinking of such a difficult question, there are actually ten different solutions, where can Zheng Yanzhi, who is obsessed with calculations, still be able to hold it, and she can't care about her bad impression of Lu Ting, so she hurriedly asks for advice.

Seeing that Lu Ting seemed unmoved, he hurriedly said: "Xiao Langjun, please rest assured, the slave family will definitely speak for you in front of the owner, and you will keep the account tomorrow, and the treatment is the same as that of the predecessor." ”

Lu Ting shook his head and said: "Miss Xiaozhi's words, it seems that you need to take care of it to get that errand, this son relies on his own ability, even if Miss Xiaozhi doesn't say it, I believe that the owner will also see it, so it's a shame to teach you like this." ”

"The slave family... You can worship Gongzi as a teacher, and there will never be less restraints. Zheng Yanzhi is not afraid that Lu Ting will deceive herself.

If you dare to deceive, you will definitely not let him feel better.

"Excuse me" Lu Ting waved his hand and said, "You are just a little maidservant, you don't have to wait for the owner?" You're not afraid that I'm afraid that the owner will scold me for being troublesome, and besides, it's too troublesome to accept apprentices, and I'm too lazy to teach when I encounter a lazy and stupid worker. ”

Hugging thick legs and finding a backer is the right thing, Lu Ting is not interested in being a teacher at all, not to mention the hard work, what is the use of that little restraint.

"Who said that, slave family..."Zheng Yanzhi couldn't go on after only half of what she said, she was the young lady of the Zheng family in Xingyang, if the news of pouring tea and handing snacks to a strange man spread out, she wouldn't let the little sisters die of laughter.

"Say, why don't you say it." Lu Tingpi said with a smile.

The villain was proud, Zheng Yanzhi shook her pink fist, her eyes rolled, and she quickly said with a calm face: "You have done a good job, the slave family will suggest that the owner let you do a three-month raw hand period and do all the positions again, so that you can be more familiar with the operation of Kelaiju, and then consider becoming a regular according to your performance in three months." ”

"You..." Lu Ting's face froze, and he quickly said with a calm face: "Didn't Miss Xiaozhi promise to waive the birth period just now, the waiter is the same as the previous bookkeeping, and it is not good to change the hexagram so quickly." ”

Lu Ting didn't doubt her words, Lin Zheng's family attached great importance to this maidservant, if it was someone else, he would turn around and leave, but the owner Lin Zheng's family was a member of the Xingyang Zheng family, maybe he would need her to introduce him in the future, which was also a reason for his hard work, and it felt a bit of a waste of time to do an accountkeeper, if he did a handyman who poured night incense and fed the horses for three months, it would be like his own life.

"Didn't you hear the ancients say that only women and villains are difficult to raise" Zheng Yanzhi saw Lu Ting's look of wanting to be angry and didn't dare to be angry, and she was in a good mood, as if most of the anger she had just suffered was dispersed.

Lu Ting took a deep breath, calmed down, put on a smiling face, and said softly: "Just now I was joking with Miss Xiaozhi, I mean, you don't need to apprentice, the way to solve the problem can also be taught to you, so let's do it, I will teach you a way to solve the problem every day, in return, just bring me some snacks." ”

A little maid, it is estimated that there is no money, and it is not just for money that she comes to live in the house, if Lin Zheng's family knows that she sees herself as a person who coaxes the little maid to make money, then all the efforts will be in vain, and now she has no money in her hands, and she has no monthly silver when she first joins, and the little rice in the clan will not last long, so she will simply let this little maid bring her some delicious food.

Those solutions are of little use to you, so it's better to use them to get some benefits.

"Okay, that's a deal." Seeing that Lu Ting's submission was soft, Zheng Yanzhi smiled and agreed on the spot.

As long as you promise to point out your knowledge of clear calculation, everything is easy to say, don't you just eat, just give a command, I wanted to mock Lu Ting a few words, but the words came to my mouth and swallowed back, offended ruthlessly, I am afraid that this talented prodigal son will not be satisfied when he teaches himself, no matter what, learn his problem-solving skills first, and then look at the mood to clean him up.

Before Lu Ting could speak, Zheng Yanzhi immediately added: "Start now." ”

Seeing Zheng Yanzhi's serious expression, Lu Ting knew that if he hadn't explained, this arrogant little girl would definitely not let herself sit at the table, anyway, it would be easy to explain, and nodded when he heard the words: "Miss Xiaozhi, you said that you used three ways to solve this problem, I don't know which three were used?" ”

I still remember ten solutions, and I don't know if there are any solutions that include her, so I ask first, and talk about a solution that she doesn't use every day, so that she can mix delicious food for a few days.

Zheng Yanzhi didn't shirk, and briefly introduced her own approach, just wanted to say that if Lu Ting didn't understand, she could still say it in detail, but she didn't expect Lu Ting to say it as soon as she heard it, and immediately said: "I estimated that it was about the same, the method of drawing the table, the method of drawing and the method of cutting feet, well, it is not bad." ”

The drawing method is equivalent to the elimination method, the chicken and the rabbit have only seventy heads, first assume that the chicken has one, the rabbit has sixty-nine, see if the foot symbol does not match, do not meet the exclusion, and then assume that there are two chickens, the rabbit has sixty-eight, and then verify that the number of feet is not the same, with this method has been listed, until the numbers match;

The drawing method is similar to the drawing table, but the first cut out seventy heads, these heads are not divided into chickens and rabbits, and then cut out one hundred and eighty-eight legs, and then dip these legs under the head, the first round is two legs under each head, and the remaining legs are stained under the head in a group of two, and the legs can be counted after staining, and the two legs are chickens, and those with four legs are rabbits, which is very simple;

If you cut off 1 foot for each chicken and 2 feet for each rabbit, then each chicken will become a "one-horned chicken", and each rabbit will become a "two-legged rabbit, half of the total number of feet on the ground, the number of chicken's heads is calculated once, and the number of rabbit heads is equivalent to two calculations, so that you can find the number of rabbits."

Not bad? It sounds like a compliment, but it sounds weird, this Lu Ting doesn't look much older than himself, he talks like a professor in the Gong Academy, he has changed from a genius to his disciple, Zheng Yanzhi felt a little unhappy, but he didn't say it.

"Please also ask Xiao Langjun for advice." In order to learn a new solution, Zheng Yanzhi endured.

Lu Ting's mind flashed, he smiled, coughed dryly, and then began to explain: "The method I talked about today is the method. ”

In fact, it was a whistle blowing method, and Lu Ting had the intention to tease her, so he temporarily changed it to a method.

Zheng Yanzhi heard the, her willow eyebrows wrinkled, it was the first time she heard that there was such a thing as a, and she thought that it had something to do with the, but seeing that Lu Ting was not joking, she didn't say anything if she had any doubts in her heart, but just held her breath and held her ears high, for fear that she would miss a word.

"Can Shiba get a?"

"I haven't learned this instrument, is it related to problem solving?"

"It's okay, but it's related to your life, well, girls can, and life will be a lot more exciting." Lu Ting deliberately lengthened the pronunciation of the flute.

Zheng Yanzhi hesitated for a moment, and finally nodded and said, "If you have a chance, the slave family must study hard." ”

A little trick on the tsundere little pretty girl, Lu Ting was in a good mood, and she had a sense of satisfaction that her IQ crushed her, and she wanted to take advantage of her tongue again, but when she saw her serious face, she felt a little guilty in her heart, coughed dryly, and began to explain: "Assuming that the pheasant and the rabbit are trained, they will lift one leg when they blow the flute, and if they blow the flute twice, the pheasant and the rabbit will both lift two feet, Miss Xiaozhi, if the pheasant lifts two legs, what will happen?" Lu Ting didn't finish speaking at once, he deliberately stopped and brought Zheng Yanzhi in.

"The chicken only has two legs, and if they are both lifted, they will fall to the ground."

With a snap, Lu Ting snapped his fingers and said happily: "By the way, the chickens are all falling to the ground, and the rabbits have four legs, and they are still standing, don't pay attention to how many heads have not fallen, and those legs have fallen half, right?" ”

“.... Right. ”

"That is, seventy heads, each head will fall two legs, that is, one hundred and forty legs, then the remaining legs ...."

Zheng Yanzhi, who had doubts, had a sudden feeling of brightness in her heart, and said excitedly: "The remaining legs belong to rabbits, one hundred and eighty-eight minus one hundred and forty equals forty-eight, and two legs are raised in front, that is to say, every two remaining legs represent a rabbit, a total of twenty-four rabbits, God, how can the slave family not think of it." ”

This problem can still be solved in this way, why can't you think of it? Zheng Yanzhi's gaze was different when she looked at Lu Ting again.

Unexpectedly, the prodigal son of Dengtu is not only a little good-looking, but also so powerful, he really underestimated him.

The arrogant little girl didn't roll her eyes again, she looked at herself differently, and Lu Ting smiled: "Miss Xiaozhi, if there is anything you don't understand, just bring it up." ”

"Xie Xiaolangjun solves the doubts, this method is simple and interesting, Xiaolangjun explains it in detail, and the slave family has no doubts" After a pause, Zheng Yanzhi said a little embarrassedly: "It's too early to leave the banquet, I wonder if Xiaolangjun can teach the second solution?" ”

Ten solutions, it's really exciting to think about, if it weren't for murder and breaking the law, Zheng Yanzhi wanted people to open Lu Ting's head and see what was inside.

"It's not bad to chew more, it's good to learn one a day" Lu Ting said with a grin: "That's right, that osmanthus cake tastes good, bring a few more pieces tomorrow." ”

lowered his body, this prodigal son of the prodigal son actually refused, Zheng Yanzhi was so angry that she clenched her silver teeth, but she couldn't attack, she couldn't get used to seeing Lu Ting's smug look, she stomped her feet and turned away, and threw Lu Ting a beautiful white eye when she left.

The shelf is big, the mouth is also knowledgeable, the osmanthus cake is made by himself to honor his aunt, just went to the kitchen to get a snack, just gone, he rewarded him with a few pieces, I didn't expect him to eat a happy meal, designated to eat tomorrow, hum, it is cheap for him.