Chapter 79: Mental Arithmetic
This......
Cai Yan also figured out the answer at this time, and she looked at Guo Jia in disbelief.
This question was very difficult for her, and she wouldn't have gotten an answer if it weren't for Naimei's help.
How did Guo Jia get it?
Could it be that he really calculated it with his heart?
This bastard!
Cai Yu looked at the result with surprise.
In fact, she doesn't need to look at the answer, she has already said that what Guo Jia said is correct.
Because at this moment, her face was full of consternation, and that Gu Yong's face was dead.
This can't be?
Gu Yong's body trembled, and he roared angrily: "You must have peeked at my answer, otherwise how could you answer?" ”
I must have been accidentally seen by this guy when I was doing the math.
It must be like this!
His face was no longer as gentle as before, and it had become extremely hideous.
From Gu Yong's heart, the problem of chickens and rabbits in the same cage may be faster than him, but no one can calculate it mentally.
It's absolutely impossible.
Ahem!
Cai Yong reacted at this time.
Although Guo Jia's answer was right, he didn't believe that Guo Jia calculated it in his heart.
"In that case, Guo Jia, you can tell everyone how you calculate the process."
Not bad!
Gu Yong only reacted at this time.
The answer is that it can be copied, but the process cannot be copied.
If Guo Jia can't tell the process, it still means that his answer is copied from himself.
Poor guy!
Guo Jia shook his head helplessly.
Although Gu Yong is in this era, arithmetic can be regarded as a top talent.
But there is no comparison with Guo Jia, a latecomer.
You must know that the difference between them is thousands of years of civilization!
Originally, Guo Jia didn't really want to attack the arithmetic talents of this era, but this guy actually dared to rob Cai Meimei with him.
It's really unbearable for uncles and aunts.
"This question is very simple, there is no need to be so troublesome at all, using a calculation chip, it is too imbecile."
Guo Jia said with a smile.
Every time he said a word, Gu Yong's face darkened.
When this bastard says that, doesn't he say he's too imbecile?
Outrageous!
Gu Yong secretly swore that if this guy couldn't come up with a reason, he would definitely not give up with him.
"Guo Jia!"
Cai Yong was also a little unhappy.
This guy actually said that the question is simple, and what he calculates with arithmetic is imbecile, so what is his calculation that he can't calculate with arithmetic?
Ahem!
Guo Jia coughed a few times, and said slowly: "This is a simple problem of chickens and rabbits in the same cage. ”
"It's not a chicken, it's a pheasant!"
Cai Yong reminded.
"It's all the same!"
Guo Jia smiled and continued: "I already know two conditions, one is that the chicken and the rabbit have thirty-five heads. The other is that chickens and rabbits have a total of ninety-four legs. Suppose the number of chickens is x and the number of rabbits is y. X plus y equals 35. 2x plus 4y equals 94. The solution is that x is equal to 23 and y is equal to 12. ”
Cai Yong: ......
Gu Yong: ......
Sister Cai Yan: ......
I'm sorry!
Guo Jia couldn't help but wipe his cold sweat.
I accidentally got it complicated.
People in this era don't understand binary equations at all.
Ahem!
He hurriedly coughed a few times and said, "I'll explain it in a way that you can understand." The chickens and rabbits are thirty-five in total, and the feet are ninety-four. Assuming that all thirty-five of them are chickens, there are seventy legs in total. There is still some distance from the ninety-four legs of the original knowledge. We can replace a chicken with a rabbit. Thirty-four chickens are sixty-eight legs, plus a rabbit with four legs is seventy-two. Thirty-three chickens are sixty-six legs, plus two rabbits and eight legs are seventy-four...... In the same way, twenty-three chickens have forty-six legs, plus twelve rabbits have forty-eight feet, and the two add up to exactly ninety-four feet. That is, the chicken is twenty-three, and the rabbit is twelve. ”
Hearing Guo Jia's explanation, Cai Yong suddenly realized, Gu Yong was dumbfounded, and the Cai sisters were even more smiling.
It turns out that there is such a simple solution in the world.
Even Cai Yu, who has the worst arithmetic foundation, can easily solve it.
According to Guo Jia's solution, there is no need to calculate at all.
In other words, he really figured it out on his own.
"Wonderful, high!"
Cai Yong couldn't help but applaud.
Although he still didn't like it, he was still shocked by Guo Jia's novel and simple solution.
He never thought that this Guo Jia would not only be able to start a sect in calligraphy, but also be unique in arithmetic.
This......
Gu Yong's face turned pale.
He has been practicing arithmetic for many years, but in the end he is not as fast as other people's oral arithmetic.
People only use oral arithmetic to solve the problem, but he actually has to use the calculation for a long time.
Who's tall and who's on the ground is naturally clear at a glance.
"You're opportunistic!"
Gu Yong gritted his teeth and said.
Guo Jia's method of solving problems is unheard of, and even the nine chapters of arithmetic are not mentioned.
In his opinion, this is a wild way, not an orthodox arithmetic.
Opportunistic?
Guo Jia sneered and said, "What do you want?" ”
Calculate it again in a different question?
Gu Yong said without giving up.
He doesn't believe that he has studied arithmetic for so many years, and he can't compare to Guo Jia, who was born in a wild way?
Very good!
Guo Jia nodded.
Since this guy doesn't know how to lift, then he's not welcome.
"That's it, I'll come up with a question, if you can calculate it in the time of a stick of incense, how about I lose?"
Guo Jia said with a smile.
Gu Yong groaned slightly, and suddenly said, "If you come up with a problem that you can't solve in a short time, won't I lose?" ”
You can rest assured!
Guo Jia still smiled and said, "It won't be too difficult." I'll just find a new person to teach me a few words, and he will be able to figure it out. ”
Bastard!
Gu Yong was really angry this time.
"Okay, you're out of the question!"
He didn't believe that after studying for so many years, he was not as good as a newcomer in academics.
Listen up!
Guo Jia coughed.
"My question is, you accumulate from the beginning, and one accumulates to a hundred."
From one to one hundred!
Gu Yong hesitated for a while, but he didn't think it was a problem.
Now I returned to my seat, fiddling with the calculations while writing.
Guo Jia sat aside leisurely again.
At this time, sister-in-law Cai Yu came up again.
"Guo Jia, your question is not very good. It's much simpler than before. ”
Cai Yu asked puzzled.
Rest assured!
Guo Jia smiled slightly, glanced at Gu Yong, who had a serious solution, and snorted coldly in his nose.
"With the speed of this guy, the time of a stick of incense, it would be good for him to be able to calculate half of it."
Doesn't this bastard despise skill?
Guo Jia is going to make him a little stimulated this time.
Thousands of years of civilizational gaps.
Hehe, it's not so easy to catch up.
After saying this, this guy went to sleep leisurely.
Didn't take it seriously in the slightest.
This bastard!
Although Cai Yu scolded secretly, he still admired it very much in his heart.
I didn't expect this guy to be so powerful in arithmetic.
Three times and five divided by two, Gu Yong was taken down.
She will wait and see what happens next.