System of good deeds in the world

Chapter 259 The Self-taught Uncle Pengfei

Chapter 259 The Self-taught Uncle Pengfei
"Uncle, this question is really difficult."

Seeing Lin Pengfei staring at the test paper in a daze, Lin Jiajia said.

The content of this math problem is: Two boys each ride a bicycle, starting from two places 20 miles apart (1 mile is 1.6093 kilometers) and start riding towards each other in a straight line.

The instant they started off, a fly on the handlebar of one bike started flying straight to the other bike.

As soon as it reached the handlebar of another bike, it turned and flew back.The fly goes back and forth like this, flying back and forth between the handlebars of the two bikes until the two bikes meet.

If each bicycle travels at a constant speed of 10 miles per hour and the fly travels at a constant speed of 15 miles per hour, how many miles has the fly traveled in total?
Lin Jiajia racked her brains and couldn't figure out how to solve this math problem.

This is the last question in this math simulation test paper, and it is also the most difficult question. Basically, only students with top academic performance can solve this question.

Although Lin Jiajia has always been among the top three in the same grade at the school, compared with all the middle school students in the same grade in Beishan County, her ranking is relatively low, and she may even be ranked outside the top [-].

After all, the best junior high schools in Beishan County are all in the county seat.

"Each bicycle is moving at 10 miles per hour. The two will meet at the midpoint of a distance of 1 miles an hour later. The fly is traveling at 20 miles per hour. So in 15 hour the fly flies 1 miles per hour. Miles, that's how it's calculated..."

Lin Pengfei carefully explained this complicated math problem to Lin Jiajia.

"Uncle Pengfei, he knows this question?"

Lin Jiajia looked at Lin Pengfei in shock.

They all belong to the same village. Although Lin Jiajia is six years younger than Lin Pengfei, Lin Jiajia knows Lin Pengfei's basic situation well.

Lin Pengfei didn't finish the first grade of elementary school, and he didn't know a few words. How could he solve such difficult math problems?

This really made Lin Jiajia feel incredible.

"Why are you looking at me like that?"

Lin Pengfei, who was explaining math problems to Lin Jiajia attentively, found that Lin Jiajia didn't listen to his explanation at all, but looked straight at him.

"Uncle, did you really only go to elementary school for one year?"

Lin Jiajia asked suspiciously.

Hearing Lin Jiajia's question, Lin Pengfei understood what the problem was, and said with a smile: "There is no way, your uncle is talented and intelligent, and I have learned the culture of elementary and junior high schools by myself."

Anyway, bragging is not against the law, so Lin Pengfei naturally blew it hard.

"Uncle, you are too powerful!"

Lin Jiajia looked at Uncle Pengfei with admiration and said.

I have teachers to teach me, and I have all kinds of tutoring textbooks, and my school grades are not the best in the school, but Uncle Pengfei has learned all the knowledge in junior high school by relying on his own self-study, such as this math problem that is completely difficult for me , Uncle Pengfei will answer.

Lin Jiajia suddenly felt that Uncle Pengfei was so mysterious!
"Of course, there are three different calculation methods for this math problem, let me tell you..."

Lin Pengfei explained this math problem to Lin Jiajia with some pride.

In the past, Lin Pengfei thought it was useless to get this "junior high school culture", but now it seems that it is really very useful.

Especially looking at Lin Jiajia's adoring eyes towards him, Lin Pengfei felt more comfortable than eating his own corn on the cob.

……

With the person he likes, this time flies very quickly, Lin Pengfei felt that an afternoon passed by in a flash.

The dinner was made by Lin Jiajia. Don't look at the girl who is only 15 years old. She has seven or eight years of experience in cooking. The food she cooks is much better than Lin Pengfei's.

After Lin Jiajia had dinner with Lin Pengfei in the yard, she went home before it was completely dark.

After all, Lin Pengfei and Lin Jiajia were not fully engaged yet, so they couldn't live together at night.

"I really want Lin Jiajia to grow up soon!"

Looking at the back of Lin Jiajia's hiring Tingting, Lin Pengfei said to himself.

……

A district in the county seat.

"Grandma, this corn is delicious!"

A five or six-year-old boy with a thin body said happily to his grandma while gnawing on corn.

This corn is really delicious, and this corn rib soup is also super delicious, Xiaobao really likes it!
"Mom, I also think the corn rib soup you made today is very delicious, even better than those made by chefs in five-star hotels."

Daughter-in-law Li Xiuli also nodded and said to her mother-in-law.

Because my husband and wife have to go to work during the day, the meals at home are basically cooked by my mother-in-law. Her mother-in-law's craftsmanship is so-so, but today's corn ribs soup tastes really good.

Especially this corn, the taste is so good that Li Xiuli can't describe it, it is simply a delicacy unparalleled in the world!

"Mom, what did you put in your corn ribs soup? I was working all day and I felt very tired. After drinking your corn ribs soup, I felt relaxed and energetic again."

Zhang Xiaochen looked at his mother curiously and asked.

After drinking this corn ribs soup, Zhang Xiaochen not only thought it was super delicious, but also felt strong all over his body.

It's like taking a panacea, and my whole body is about to fly.

"Yeah, Mom, what did you put in this corn rib soup?"

Reminded by Zhang Xiaochen, Li Xiuli also found that after drinking this corn ribs soup, she felt comfortable all over, and all the fatigue after a day's work disappeared.

"It's the same as before, just like salt and monosodium glutamate."

Ma Fangfang said.

"Grandma, the corn is really delicious today, Xiaobao wants to eat it."

While the adults were talking, the child ate up all the corn in the bowl.

"Hehe, grandma is going to get some corn."

Ma Fangfang happily went to the kitchen to bring out the pressure cooker, and put some corn in the bowl.

This precious grandson of mine eats very badly, and always dislikes the bad dishes made by his grandma. Today, I finally heard my precious grandson praise the corn rib soup he made. Ma Fangfang thinks that it costs 100 yuan a piece Corn on the cob, worth buying!

"Mom, you haven't said what you put in this corn rib soup?"

Li Xiuli still asked curiously.

It is true that this corn rib soup not only tastes good, it feels like a panacea after eating it.

"I didn't put anything, the main reason is that the corn is good. Today, the corn on the cob costs 100 yuan a piece. Not only does it taste good, but it is also very good for the body. My legs hurt a little, but I ate this corn. After that, I don't feel any pain until now, and I don't feel tired when I go up and down the stairs..."

Speaking of this corn, Ma Fangfang was very excited.

(End of this chapter)

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