Immediately after Lin Feng continued to calculate the second question, and soon came to the answer to the second question, there were 23 chickens and 34 ducks,......

These problems are all applications of binary equations, and they are just a piece of cake for Lin Feng. In less than five minutes, Lin Feng finished the five simplest questions in front of him.

Compared with Lin Feng's calmness, everyone felt that the egg hurt, and the staff said sentence after sentence, "The answer he calculated is right." The group of people was already numb with shock, and they looked at Lin Feng in a daze.

Some of us didn't do it for days, but it took you less than five minutes to figure it out, Nima, are you still human?

However, when it came to the sixth question, Lin Feng's speed slowed down, and a minute passed, and Lin Feng hadn't figured out the answer yet, which made them breathe a little relieved, and finally had time to catch their breath.

The topics of the sixth to ninth questions are all ternary equations, and these kinds of problems are more cumbersome, but Lin Feng still has a way to solve them.

What kind of topic slowed down Lin Feng?

Everyone looked towards Bai Bu, only to see that the title of the sixth question was written like this: Xiaojun, Xiaohong, and Xiaohua add up to a total of 35 years old, Xiaojun's age is 2 times older than Xiaohong, 5 years older, and Xiaohong's age is equal to 3 times Xiaohua's age.

Looking at these figures, everyone felt dizzy for a while, how could it be a matter of age? Looking at Lin Feng again, they saw him silently writing on the paper,

"Little Army: x; Little Red: y; Floret: z. ”

"x+y+z=35,2x-y=5,2y=3z, the three formulas can be solved, x=10, y=15, z=10, so the ages of Xiaojun, Xiaohong, and Xiaohua are 10 years old, 15 years old, and 10 years old respectively. ”

This problem took Lin Feng two minutes, after all, it was a ternary equation, and it was not that simple to calculate.

"Ah, look, everyone, he's figured it out again. One person exclaimed, everyone once again turned their eyes to the staff, the staff was helpless and shocked at the same time, he was to the difficulty of the sixth question, which is many times more difficult than the previous five questions, I didn't expect the other party to be able to calculate it so quickly.

He was right. ”

This voice contained a hint of helplessness and admiration, and everyone suddenly erupted in amazing admiration when they heard it.

"It's amazing, I didn't expect him to be right again!"

"Yes, this time it took a little more time, but it was only one minute more, one minute, and I figured out how many times more difficult the problem was. ”

"But then again, what are the x, y, and z symbols? It seems that he used these symbols to calculate the answer before, why has he never heard of this font before?"

．．．．．．

Saying this, everyone had a puzzled expression.

At this moment, Qin Yong almost wanted to vomit blood, he thought that Lin Feng was just lucky to be the answer to the first question, who knew that the other party had calculated the answer one after another, and now he had calculated the sixth question correctly, there were only three questions left, and it was only seven minutes since the first question was now! There were still twenty-three minutes before the time he said, would Lin Feng have used twenty-three minutes for the last three questions? This even he didn't believe it.

The last three questions were basically the same, and Lin Feng only took less than nine minutes to get these questions completely right, and everyone was stunned again, leaving only the residual voice of the staff member in the field, "His answer is right"......

In less than a quarter of an hour, Lin Feng perfectly answered these nine questions, such a result shocked everyone present, at first they thought that Lin Feng was just talking big, how could anyone be able to answer these nine questions correctly within half an hour?

But the facts gave them a slap in the face, letting them know that there is a sky outside the sky, there are people outside the world, and there is still such a person in this world who creates a miracle!

Qian Feihua looked at the high-spirited Lin Feng, and was full of emotion in his heart, thinking that it was just that this young man was young and vigorous, and what he just said was just big words, purely due to competitiveness. However, I didn't expect the other party to really be able to do it, and it was so perfect and impeccable.

When I think of this, I can't help but sigh, it seems that I am old, a little stubborn, thinking that others are young, and I think that others are inferior to myself.

Zhao Jiansheng also looked at Lin Feng in a daze, as if he didn't believe that Lin Feng had solved these nine problems so easily!

"Bang"

At this moment, a muffled sound broke this strange scene, and everyone hurriedly looked over, only to see a huge white cloth pouring down from the roof in an instant, covering most of the previous strips of cloth, and the huge white cloth read:

"An antique shop sells a batch of antiques, an average of 20 pieces can be sold per day, each piece makes a profit of 40 taels of silver, in order to expand sales and increase profits, as much as possible to reduce inventory, the shopkeeper decided to take appropriate price reduction measures, after investigation, it was found that if each antique price is reduced by one tael, the market can sell 2 more pieces per day, if the mall makes an average of 1,200 silver per day, how many taels of silver should be reduced per antique?"

Lin Feng couldn't help but be surprised again when he saw it, Nima, isn't this an otherworldly version of the application of a one-dimensional quadratic equation?

No wonder it was put on the last question, this question was much more difficult than any of the previous ones, even if it was estimated that he would have to spend some effort, he quickly took another piece of paper, and quickly wrote silently,

"The price of each antique should be reduced by x two pieces of silver. ”

"According to the title, get (40-x) (20 + 2x) = 1200, finish, get x2-30x + 200 = 0, solve it x1 = 10, x2 = 20, because the title wants to reduce the inventory, so x take 20, so each antique should be reduced in price by 20 taels of silver. ”

This question took Lin Feng ten minutes, and it took more time than before, but fortunately, it was finally calculated.

However, at the moment when Lin Feng calculated, a person next to him exclaimed.

"Ah, Lin Feng calculated it again, and the answer was twenty taels of silver. ”

Everyone looked at the staff member again, their eyes were full of anticipation, could it be that someone would finally be able to get the ultimate reward for half a year in this exam?

I saw that the staff member reached out and took out a black box from his arms, opened it and took out a note, which was the answer to the last question, and even he didn't know. After he glanced at it, his face was a little excited, his hands trembled slightly, and he said in a trembling voice, "His...his answer is...is correct." ”

Wow!

The crowd cheered, as if the person who had answered all the questions correctly was himself, and the voice resounded throughout the sky......

(The second one is sent.,There should be another one tonight.,Everyone's great power.,Your ticket to me is right......)