Xia Xiaodong read the title carefully twice, turned the paper over again and looked at it, it was blank.
This is the problem that Xia Danfeng said has stumped countless people and remains unsolved to this day.
If this is true, then we really need to re-evaluate the current level of arithmetic.
Grandma Chen immediately noticed Xia Xiaodong's strange behavior.
Shouldn't it be normal to be at a loss, thinking hard, or scratching your head?
Xia Xiaodong caught Grandma Chen's eyes, blinked, and asked weakly: "Isn't it enough to weigh me once?"
once and for all Grandma Chen raised her legs and walked towards Xia Xiaodong, almost tripping over with her left foot and right foot.
In just a few short steps, I have regretted countless times.
I shouldn't have let Xia Danfeng go, or at least let her tell her the answer before leaving.
Didn't she say that she knew the answer, but she didn't know the algorithm?
"Why did the girl say that it only needs to be weighed once?"
Chen Ainai didn't believe the answer 90% of the time, but she still asked as patiently as possible.
"Well, Auntie Chen, please take a look."
Xia Xiaodong picked up the pen at this time and began to draw circles on the white paper he had prepared.
Large circles represent consistency and consistency, while small circles represent copper coins.
I even drew a simple 楥子 pattern.
"Here, these are the twelve coins.
Let's put them neatly first."
Xia Xiaodong clicked on the big circles: "Then, put these copper coins into small circles and weigh them carefully."
Of course, it still needs to go through some analysis and calculations, etc.
Fortunately, Xia Xiaodong has lowered the contemporary arithmetic level by several grades, and has also re-evaluated Chen Aima's own arithmetic level, so he explains it in simple terms as much as possible.
After talking for a cup of tea, it was considered finished.
"In that case, wouldn't it be enough to weigh her once?"
Xia Xiaodong raised an eyebrow and looked at Auntie Chen.
Grandma Chen didn't speak for a long time.
She couldn't fault it.
However, she suddenly thought that if the answer was revealed, the question would be useless.
Useless means that it has no value for reuse.
Such an interesting topic can definitely be used again.
After all, good questions don't come often, and neither does Xia Xiaodong.
This topic can be completely changed and carried forward in other situations.
It is a pity to reveal the details at this time.
She now believes that Xia Danfeng really doesn't know the answer.
If she hadn't listened carefully and carefully, she would never have been able to think of such a method.
But if it is not announced to the public, then there will be many people outside who are still waiting.
"Miss Xia, can you come up with another solution?"
Chen Aina asked with some difficulty.
If you come up with another one, you think it is a hen laying eggs, one on the left and one on the right.
"The other solution is not to weigh the least number of times."
Xia Xiaodong said matter-of-factly.
The requirement of the question is to find the least.
Once is too little and cannot be less.
If there is any other solution, it must be more than once.
"It doesn't matter, it doesn't matter," Chen Ainai said quickly: "Two, three times, four or five times will do.
As long as you can explain it yourself." "" Xia Xiaodong thought for a while and roughly guessed Chen Aina's intention: "Does Chen Aina not want to make the real answer public?"
Free novels bring you joy and joy ---> storyskyline.net
Then use me as a cover.
Xia Xiaodong suddenly felt a little uncomfortable.
If there is another explanation, wouldn't it make him look stupider than he really is?
The answer is clearly one time, but we have to announce it and explain how many times it is.
The smile on Chen Ainai's face could no longer be held, and she reluctantly said: "Young lady should have noticed that this question is really exquisite.
I just thought that it could make the ladies in the palace use it as a guessing game during the New Year and the holidays.
It’s just something to relieve my boredom.”
It was said quite lightly, but Xia Xiaodong still understood.
"Okay then."
Xia Xiaodong agreed: "Since you have provided two solutions, should you give me forty bamboo sticks?"
Grandma Chen: "" This person still remembers the bamboo sticks.
It's okay to ask for forty sticks.
The reward is twenty.
Now if you want to solve it twice, don't you have to pay forty?
However, Grandma Chen could not increase the number of bamboo sticks by herself.
She thought for a while and paid a price: "At thirty, I will go and tell Xia Danfeng that in addition to the reward, she will take ten more bamboo sticks from the collected bamboo sticks."
Come."
Just thirty.
There is no point in asking for too much.
Xia Xiaodong nodded in agreement: "Then let's say we weigh it three times.
There are many ways to weigh it."
"For example, for the first time, the six and six pairs are drawn, and there is fake money on the light side.
Then the six with fake money, and then the three and three pairs are opened again, and the same is the fake money on the light side; and then the three with fake money, one by one Symmetrical, the lighter one is false, and if it is equally heavy, the remaining one is false.”
"You can also open five or five, four or four, or three and three for the first time.
Anyway, if you weigh it three times, you can open it any way."
What Xia Xiaodong really doesn't understand is that if weighing three times is an acceptable answer, no one has been able to answer it correctly before.
Grandma Chen listened to Xia Xiaodong like running water, counting several ways to pronounce it, and it was obvious that she could continue to count.
Her mouth opened wider and wider as she listened.
She really didn't understand why a lady from an official family knew these things.
You know, most ladies, if you talk to them about silver and copper coins, they won’t be able to tell how to convert them.
What does it mean that one copper coin weighs ten coins?
It takes a long time to understand.
As for what a coin is, how can it be understood?
Very few people know how to use it.
"Wait a minute," Chen Aima suddenly thought of something: "The six-six pairs, five-five pairs, etc. that the girl mentioned seem to be different from the common usage of Zhuzi."
"Yes," Xia Xiaodong rolled his eyes at her, "If you only weigh it once, the scale is used normally.
When you weigh it three times, the scale can only be used as a scale."
"balance" "It means to prop it up in the middle, specifically to check whether the two ends are of the same weight."
Xia Xiaodong explained: "Just borrow the crossbar of the chest for a while.
Maybe you will think that this is the key to solving the problem.
Woolen cloth."
Grandma Chen’s eyes shone: “Girl, this is a great idea.”
"What are you going to do?
Let me do it myself.
I'd better go back first."
Free novels bring you joy and joy ---> storyskyline.net
Xia Xiaodong unceremoniously picked up the two packages left by Xia Danfeng as a pretext.
He held them first, and then looked back at Chen Aima.
Grandma Chen smiled coquettishly, quickly took out thirty bamboo sticks, and stuffed Xia Xiaodong directly into the package.
Xia Xiaodong happily carried his things and left, waving to the people outside the door to express that everything was fine.
"Wow, Sister Xiaodong" Miss Qin Si was very excited: "I knew you could do it":