She had finished writing both sides of a piece of paper, but she still couldn't figure it out, so she had to ask Su Wenian for another piece of paper.
"There's only one minute left," Jin Bao glanced at the clock and asked, "Is it okay?"
"No, oh, this is too difficult..." It was winter, Xie Shuting was so anxious that her face was covered with sweat, and finally she threw the pen on the table, "I won't count, it can't be calculated in half an hour!
"
"So you're admitting defeat?" Jinbao's voice was cute and playful, "I'm willing to admit defeat. In the next two months, you will come to my house to do chores. It happens that my ducks go to swim in the water every afternoon. You can help pull the ducks out of the river.
Rush back.
By the way, if my mother and Aunt Huang are tired of chopping pig grass, you have to help, and collect firewood and so on..."
"Ah -" Xie Shuting shouted, interrupting Jin Bao's words, "Why should I be considered a loser? Unless you can solve this problem in half an hour, you have to calculate the interest for 60 months.
Half an hour is not enough?"
"I knew you would be so mean, I'll show you, two minutes is enough!"
Jinbao took the pen and paper in her hand and wrote down the calculation process amidst everyone's curious and surprised eyes.
"Liu Mei's monthly deposit is: 0.4÷10×6×30-5=2.2 yuan
The sum of the principal and interest of the five years rounded up from the zero savings is: 2.2×12×5+2.2×8.28%÷12×[(60+1)÷2×60]=159.78 yuan
The sum of principal and interest after five years of depositing 30 yuan is: 30×(1+8.28%×5)=42.42 yuan
After five years, Liu Mei can withdraw from the rural credit cooperative: 159.78+42.42=202.2 yuan."
Everyone looked at Jin Bao writing the answer easily, with wonder in their eyes, and asked: "What is the result?"
Jinbao showed the result of his calculation and said: "Two hundred and two cents."
The surrounding villagers said in surprise: "Wow! If you save a little money every month, you can save more than two hundred?"
"I deposited thirty yuan at the beginning, but after thinking about it, it's not bad to deposit the money in a credit union."
"But I won't be able to withdraw it for five years. It would be bad if I need money for emergencies..."
While everyone was discussing, Xie Shuting snatched the paper from Jin Bao's hand in disbelief, stared at her calculation process, and wondered: "What does the "(60+1)÷2×60" in your brackets mean?"
"
Several other educated youths also gathered around at this time. They felt that they looked familiar. "Why do I feel like I have learned it before? Is this something I learned in junior high school? I have some impressions, but I can't remember it."
Liu Changping suddenly realized, "Ah! I remembered, this is the summation formula!"
He took a pen and paper and wrote down the formula, "1+2+3+4+...+ n =(n+1)n /2".
When others saw the formula, they remembered that they had indeed learned it in math class, but they had not gone to school much in the past few years. They had been on strike all day long and had almost forgotten the content in class.
Jinbao actually thought this question was too simple at first, as long as he calculated simple interest.
She originally thought that Liu Mei would find a bank loan of 100 yuan, and borrow it for five years in two different ways: equal principal and equal principal and interest. Which way would pay more interest, and by how much. This involves compound interest, which is better than single interest.
The benefits and difficulties are too great.
However, she was a little worried that the loan methods in this era were different, maybe there were no equal amounts of principal and equal amounts 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 has overthought it. The level of these 68 educated youths is indeed average.
It’s no wonder that although the three generations of educated youth in 1966, 1967 and 1968 have never taken the college entrance examination, the 1966 class really prepared for the college entrance examination and studied hard, while the 68th class played all day long and probably forgot even their junior high school knowledge.
about there.
After all, everyone thinks reading is useless, how many of them still read seriously? There are not many people like her third brother.
"Okay, have you finished confirming?" Jin Bao stepped on the chair and said, "I figured out this question in a few minutes, but sister Xie Shuting, you didn't figure it out. Do you still want to deny it now?"
"me……"
The villagers who were watching said: "This female educated youth won't want to default on her debt after losing, right? Not only will her cultural level be poor, her morals will also be poor."
Listening to their discussion, Xie Shuting blushed.
Just as she was about to speak, Liu Changping spoke first: "Little sister, let me help you with the chores."
"You?" Jinbao said in a confused tone, "You are not the one who lost the bet, so why do you want to 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 pushed him, "If you lose, you lose. I am the one who loses. I don't need your help! Isn't it just to help with the chores for two months? I can do it myself!"
"But Shuting, you sprained your foot yesterday. I saw you were still a little lame when walking just now..."
"You are lame when you walk," Xie Shuting rolled her eyes at Liu Changping, "My feet are fine. Come on, Liu Xiaofa, please don't be as verbose as my dad, okay? I don't have to worry about it!
"
After saying that, she looked at Jinbao and said, "I will come to your house to work starting tomorrow, don't worry."
The reason why Xie Shuting agreed so readily was actually selfish, because this is Su Wenian's home.
She used to worry about finding excuses for Su Wennian, but now it just so happens that she can come to his house every day...
She was the one who fell in love with Su Wennian first. Xie Shuting clenched her fists and thought, that annoying Hua Wenli must not try to seduce him behind her back!
After Xie Shuting left, the villagers watching the excitement dispersed, and the male educated youths also returned to their houses.
Luo Youlong allocated ten kilograms of rice from the production team's warehouse to these educated youths so that they could cook for themselves.
They drew lots and took turns cooking. The person who was drawn went to the kitchen to wash the rice. The remaining boys were chatting about what happened before. Among them, Liao Feihong asked Liu Changping: "Hey! What is your relationship with that Xie Shuting?"
"Ah?" Liu Changping was stunned for a moment, then came to his senses and said, "We are neighbors of the Railway Family Courtyard. Shuting's father is the station director, and my father is the train driver. Besides, the two of us
Still classmates..."
"Oh! Her dad is the webmaster? She's pretty awesome. No wonder she's so arrogant." Liao Feihong said with interest.
He didn't see Xie Shuting's face clearly last night, but today he noticed that she looked very distinctive.
Recalling Xie Shuting's angry look just now, Liao Feihong's lips curled up into a smile.
The next day, after arriving at the production team early in the morning, he took the initiative to talk to Xie Shuting, but Xie Shuting ignored him at all. She was focused on Su Wenian, who was publishing the newspaper. She felt that he was not only handsome, but also good at writing, and could also draw...
Ah! Not only does he look good-looking from the front, but he also looks good from the side. He is totally her ideal marriage partner!