happy life through time

Tong Yan frowned, the semi-final exam turned out to be one of the six arts - counting.

Looking at the topic again, he just wanted to dig out his eyeballs. Could it be that the mathematics level in this world is so high?Are the questions so well written?

Although, to him, it was just a logic puzzle at the primary school Olympiad or junior high school level, the development of mathematics in this world dominated by literature is very backward, and arithmetic is only limited to accounting management, or deeper, but Absolutely not up to this level.

However, Tong Yan did not expect to see such questions in this world. These questions are very common in modern times, but not here, because Tong Yan did not find related books, especially the third question.He can be sure that none of the people he knows has seen such problems. Today, he has a new understanding of mathematics in this world.

He quietly looked around, and saw that many people were thinking hard about the three questions above, but no one took a pen to calculate. He also felt that he was thinking too much, and it was very likely that he deliberately made difficult problems to test the students. of.

Tong Yan also pretended to be deep in thought. The meaning of the first question is: There is a farm family in Gaotianzhuang, and they bought 19 fruits on the street. There are a couple of elderly people, a couple and a child in the family, a total of 5 people. A couple of elderly people take up half, that is, 1/2. After getting the fruit, one person gets half, the child takes up 1/4, and the husband and wife share the remaining 1/5. Ask: How many pieces of fruit did each person get? ?

Tong Yan looked at the time, pondered for a quarter of an hour, and wrote down the answer to the first question: five fruits for each of the two elders and one child, and four fruits equally for the husband and wife.

There was a large blank area beside it, Tong Yan thought about it, and wrote down his own solution to the problem: Suppose you add an extra fruit, you can get [-], and each of them gets their share, the amount is just right.

Then comes the second question, which means: Longjiang is in full bloom in July, and a wave of tourists come to watch the river.If 5 people take 1 boat as the standard, there are 2 boats left, and if 4 people take 1 boat, there are still 3 boats left.Q: How many boats are there?How many tourists?

After another quarter of an hour, write down the answer to the second question: 22 tourists, [-] boats.

Next to it was a large blank space. It seemed that he was going to write down his thinking for solving the problem. To be on the safe side, Tong Yan also wrote down the thinking for solving the second problem: If the total number of ships remains the same, the formula : The number of tourists divided by five plus two is equal to the number of tourists divided by four and then subtracted by three, and the number of tourists is 22, and the total number of ships is [-].

As for the third question, Tong Yan held a three-inch ruler in his hand and was a little puzzled.

To measure the length of the wooden pole, but where is the wooden pole?

Tong Yan looked around and saw that there was no wooden pole on the stage at all, so he had to take a step to the left, then stepped forward and cupped his hands and said, "The student is stupid, please ask Mr. Li for advice."

As soon as Tong Yan made a sound, everyone looked at Tong Yan instantly, with doubts, expectations, gloating, and some seemed to be waiting for something.

Master Li glanced at Tong Yan, and then at Dean Dai. Dai Qianhong stroked his white beard, a gleam flashed in Tong Yan's eyes, and then nodded.

Master Li also nodded towards Tong Yan and said, "Speak!"

"Thank you, Master Li. The students would like to ask Master Li, where is the wooden pole? If the wooden pole is not there, the students cannot answer."

"Have you answered the other two questions?"

"Yes."

"Later." Master Li said, beckoning someone to come forward to take Tong Yan's answer sheet, glanced at the answers on the sheet, and found that they were all correct, and Tong Yan's problem-solving ideas were very clear, novel and easy to understand, and he also knew how to use tricks : "Clever, wonderful, really clever!"

As Master Li said, he presented Tong Yan's answer to the judges. Everyone passed it on and saw surprise in each other's eyes. Dai Qianhong looked at Tong Yan and nodded: "Not bad, not bad. No wonder Yuhao always said good things about him, because he has some real skills." At first he said that Tong Yan had real talent, but now he felt that Tong Yan had some real skills, his eyes suddenly changed, maybe he could really consider, Examine him to see if he is qualified to be his personal disciple.

But when Li Subaran looked at Tong Yan, he had a feeling that it was really him!