Xiaofubao was pampered in the chronology

After writing both sides of a piece of paper, she still couldn't figure it out, so she had to ask Su Wennian for another piece of paper.

"There's only one minute left." Jin Bao glanced at the clock and asked, "Is it all right?"

"No, oops, it's too difficult..." In winter, Xie Shuting was so anxious that her face was covered with sweat, and finally she threw the pen on the table, "I don't count, it can't be calculated in half an hour! "

"So you're admitting defeat?" Jin Bao said in a cute and playful voice, "I'd like to admit defeat, and you will come to my house to do chores in the next two months. It happens that my ducks have to swim in the water every afternoon. You help the ducks out of the river. hurry back.

That's right, if my mother and Aunt Huang are tired of chopping pigweed, you have to help, as well as pick up firewood and so on..."

"Ah——" Xie Shuting yelled, interrupting Jin Bao's words, "Why do I count myself as a loser? Unless you can solve this problem in half an hour, you have to calculate the interest for 60 months. Is half an hour enough?"

"I guessed that you would be so shameless, let me show you, 2 minutes is enough!"

Jin Bao took the pen and paper in her hand, and under the curious and surprised eyes of everyone, wrote down the calculation process.

“刘梅每月存款为：0.4÷10×6×30－5＝2.2元

零存整取五年的本息和为：2.2×12×5+2.2×8.28%÷12×【（60+1）÷2×60】=159.78元

30元存款五年后本息和为：30×（1+8.28%×5）=42.42元

After five years, Liu Mei can withdraw from the rural credit cooperatives: 159.78+42.42=202.2 yuan. "

Everyone watched Jin Bao write out the answer easily, their eyes sparkled with amazement, and asked, "What is the result?"

Jin Bao showed the result of his calculation and said, "Two hundred and two yuan and two cents."

The surrounding villagers said in amazement: "Wow! If you save a little money like this every month, you can save more than 200?"

"At the beginning, I deposited 30 yuan, but after doing the math, it's not bad to deposit the money in the credit union."

"But I can't get it out for five years. It would be bad if I needed the money for something urgent..."

When everyone was discussing, Xie Shuting snatched the paper in Jinbao's hand in disbelief, stared at her calculation process, and asked in puzzlement: "What does the "(60+1)÷2×60" in your square brackets mean? "

Several other educated youths also gathered around at this time, feeling quite familiar, "Why do I feel like I have learned it? Is this something I learned in junior high school? I have a little impression, but I can't remember it."

Among them, Liu Changping suddenly realized, "Ah! I remembered, this is the summation formula!"

He took a pen and paper and wrote down the content of the formula, "1+2+3+4+...+n=(n+1)n/2".

When the others saw the formula, they remembered that they had indeed learned it in math class, but they didn't go to school at all in the past few years. They went on strike all day long, and almost forgot the content in class.

At first, Jin Bao also thought that this question was too simple, as long as he calculated simple interest.

She originally thought of Liu Mei looking for a bank loan of 100 yuan, with two different methods of equal principal and equal principal and interest for five years. Which method will pay more interest and how much more, this involves compound interest, which is more than a single loan. The profit is too difficult to calculate.

However, she is a little worried that the loan methods in this era are different, maybe there is no equal amount of principal and equal amount of principal and interest...

To be on the safe side, she asked this relatively simple question, and was worried that Xie Shuting would figure it out.

But it seems that she was thinking too much, these 68 educated youths are really of average level.

It’s no wonder that although the educated youths of the 66th, 67th, and 68th classes have not taken the college entrance examination, the 66th class has actually prepared for the college entrance examination and studied well, while the 68th class, playing all day long, probably forgot even the knowledge of junior high school almost.

After all, it is useless for everyone to read books, how many of them will still read books seriously?There are not many people like her third brother.

"Okay, have you confirmed it?" Jin Bao stepped on the chair and said, "I figured out this question in a few minutes, but sister Xie Shuting didn't figure it out, do you still want to deny it now?"

"me……"

The surrounding villagers said: "This female educated youth will not lose and want to renege on her debt, right? Not only is her education level not very good, but her morality is also poor."

Listening to their discussion, Xie Shuting blushed.

Just as she was about to speak, Liu Changping rushed to the side and said, "Little sister, let me do chores for you."

"You?" Jin Bao asked in a confused tone, "You are not the one who lost the bet, big brother, why did you do chores for my family?"

"Because..." Liu Changping blushed, "Because I promised Shuting's parents to take good care of her. She has never done any hard work since she was a child. Besides, she and I are neighbors, so... "

Before he could finish speaking, Xie Shuting gave him a push, "If you lose, you lose, and I lose. I don't need your help! Isn't it just helping me with the odd job for two months? I can do it myself!"

"But Shuting, you sprained your ankle yesterday, I saw you were walking with a limp just now..."

"You're a limp when you walk," Xie Shuting rolled her eyes at Liu Changping, "My feet are fine, it's alright, Liu Xiaopang, can you stop being nagging like my father? I don't need you to worry about it! "

After finishing speaking, she looked at Jinbao, "I will come to your house to work starting tomorrow, don't worry."

The reason why Xie Shuting agreed so readily is actually selfish, because this is Su Wennian's home.

She used to worry about making excuses for Su Wennian, but now it happens that she can come to his house every day...

Su Wennian was the one who fell in love with her first, Xie Shuting clenched her fists and thought, that annoying Hua Wenli would not want to seduce him behind her back!
After Xie Shuting left, the villagers watching the fun dispersed, and the male educated youths also returned to their houses.

Luo Youlong allocated ten catties of rice from the warehouse of the production team to these educated youths to cook for themselves.

They drew lots and took turns cooking, and the ones who were drawn went to the kitchen to wash the rice, and the remaining boys chatted about what happened before. Among them, Liao Feihong asked Liu Changping, "Hey! What's your relationship with that Xie Shuting?"

"Ah?" Liu Changping was stunned for a moment, then came back to his senses and said, "We are neighbors of the Railway Family Courtyard. Shuting's father is the station master of the railway station, and my father is the train driver. Besides, the two of us Still a classmate..."

"Yo! Her dad is the station master? She's amazing, no wonder she's so airy." Liao Feihong said with interest.

He didn't see Xie Shuting's face clearly last night, but today he noticed that she looks very iconic.

Recalling Xie Shuting's angry look just now, Liao Feihong smiled.

The next day, when he arrived at the production team early in the morning, he took the initiative to talk to Xie Shuting, but Xie Shuting ignored him at all, and focused all his attention on Su Wennian, who published the blackboard newspaper. He thought that he was not only handsome, but also good at writing and drawing...

what!Not only is he good-looking from the front, but he is also good-looking from the side. He is completely her ideal marriage partner!