Rebel Demon King

Chapter 68 Best Supporting Actor

(Thank you for the reward of a dream that shocked Shu Zhongxian)
This question went through Cheng Mo's mind once, and he immediately came up with the answer - no.

This is an uncomplicated reasoning question. The so-called new moon is the moon on the first day of the new year.In astronomy terminology, the new moon is the ecliptic longitude of the moon and the sun (the solar ecliptic longitude refers to the orbit of the earth around the sun.) The moon phase at the same time, that is, the moon, the sun, and the earth are in the same straight line.That is, when the moon is in the middle (assuming the sun is on the left and the earth is on the right), blocking more of the light from the sun (when the three spheres are roughly in a line), the moon seen by people on the hemisphere facing away from the sun is the new moon. .

At the new moon, the front of the moon is exactly facing the sun, and the dark hemisphere of the moon is facing the earth, so the moon cannot be seen from the earth.

Therefore, the new moon cannot be seen at midnight. The new moon can only be seen at dawn or evening, but the polar regions are an exception. The new moon can be seen 24 hours in the polar regions. If he is a real American citizen, then he must Live in Alaska, close to the Arctic Circle or even further north.

And in 1932, when Franklin Delano Roosevelt was elected, citizens of Alaska did not have the right to vote for president, so he did not vote for Roosevelt regardless of his position.

Cheng Mo came up with the answer in an instant. This question is too simple for him with rich knowledge, but he glanced at the actor Du Leng and was still thinking, so he could only keep his mouth shut. This kind of thing that steals the limelight of the actor is Absolutely not.

Yan Yitong glanced at the expressionless Cheng Mo and said with a smile, "Don't say you can't answer such a simple question?"

Cheng Mo sneered and pretended to be thinking and said, "The answer lies in the crescent moon. Now I'm just wondering if there is a cross on the dome church."

Hearing Cheng Mo say the word "New Moon", Xie Minyun, who was thinking hard, suddenly realized.

At this time, Du Leng coughed and said, "It should be no"

Yan Yitong looked at Du Leng and said, "Why?"

杜冷淡淡的说道：“1，总统选举年的11月的第一个星期一后的星期二是美国总统大选日；2，这段时间只有极地能24小时看见新月；3，1932年阿拉斯加地区公民没有选举总统的权”

"Bingo!" Yan Yitong snapped her fingers and snapped her fingers. Then she looked at Cheng Mo and said, "Yo! The talented certain gentleman didn't answer the first question?"

Cheng Xiao immediately applauded: "Du Leng, you are amazing!"

Cheng Mo gave Du Leng a look of disdain and said, "Aren't I analyzing it? Someone first told me what I could do. I must have answered this question."

Yan Yitong sneered: "The dead duck has a tough mouth, then I'll ask the second question! Listen carefully! Mr. A is thinking of a number between 99 and 999. Mr. B asks Mr. A if the number is lower than 500, Mr. A The answer is "yes"; Mr. B asks again whether the number is a square number, and the answer is "yes"; when asked whether the number is a cubic number, Mr. A still answers "yes". However, , only two of the three results answered by Mr. A are correct. But Mr. A later told Mr. B honestly that the first and last digits of the number were 5, 7 or 9."

"May I ask what the number is?"

After listening to the question, Cheng Mo got the answer after a little thought. Mr. A was obviously lying when he said that the number was lower than 500, because the first digit, whether it was a three-digit number of 5, 7 or 9, was greater than 500.And perfect squares and perfect cubes are very few in this range and can be enumerated.Two numbers are obtained, and the result can be obtained according to the last condition - 729.

After Cheng Moxin figured out the answer, he went to see the male protagonist Du Leng, but he seemed to be still thinking hard, Cheng Mo thought: How can I prompt this question?Seems like a bad tip!

So he could only pretend to think, and he was bored with calculating with his hands, and he counted it over and over. At this time, Xie Minyun turned his attention to Cheng Mo's hand that was drawing a brush, took a look and said, "The answer is 729”

Yan Yitong snapped her fingers again and said with a smile on her face: "Bingo!" Then he said, "Sister Minyun is still good at math! She solved the answer so quickly."

Xie Minyun said: "Actually, I'm really bad at math, especially mental arithmetic."

Sweaty Du Leng smiled and said, "It's not good at mathematics? Minyun is too modest!" Mathematics has always been Du Leng's weakness.

Yan Yitong glanced at Cheng Mo again, and giggled, "You don't want to say that you are good at liberal arts, not science, right?"

Cheng Mo spread out his hands again, showing a forcible expression on his face: "I also calculated that it is 729. I just wasn't sure of the answer, so I verified it again with the algorithm, so it's just a little late."

Yan Yitong sneered "Haha" and said, "Haha! Hand calculation. Then both Senior Sister Minyun and Senior Du are not allowed to answer this question, let's see if this kid can't answer."

Du Leng and Xie Minyun both glanced at Cheng Mo and nodded.

Yan Yitong deliberately showed his arrogance and said to Cheng Mo: "You are the only one to answer this question. If you can't answer it, you must promise me that you will be my sidekick today!"

Based on the two questions Yan Yitong asked, Cheng Mo guessed that she should not be able to confuse him, so he said lightly: "If you have the answer, please stop harassing me."

Yan Yitong smiled mysteriously and said: "Okay! No problem! The problem is this--one day the math teacher called Xiao A and Xiao B, who had good math scores, to the office, and the math teacher selected two different ones from 2 to 99. The integer of , told the sum to the little A, and the product to the little B. Little A said: Although I don't know what these two numbers are, I know you and you don't know what these two numbers are. Little B said : I didn't know at first, but if you say it like this, I know. Xiao A said: Oh! Then I know too!"

"Now tell me, what are the two numbers the math teacher picked? Why?"

After Yan Yitong finished the question, Cheng Xiao was confused. She felt that the question was a bit nonsensical, while Du Leng was glad that only Cheng Mo could answer this question. He had no clue about this question, and Xie Minyun was wrinkled. He frowned and entered the long exam. This question would be much easier to calculate if you had paper and a pen, but if you only rely on mental arithmetic, the difficulty will undoubtedly increase exponentially.

After listening to the question, Cheng Mo said with a blank face, "Can I change the question? It's unfair for you to ask this question!"

Yan Yitong said triumphantly, "Just this question! You can't answer this one, let alone the rest!"

Cheng Mo stopped answering and started to calculate. The reason why he said it was unfair was because he knew the answer by listening to the question. This question is called "The Impossible Puzzle" and it is a purely mathematical problem. , at first glance, it seems that there are no clues and cannot be answered, so it is called "impossible puzzle".

There are many versions of this puzzle, Yan Yitong asked here is the simplest and original version, but people who have no interest in mathematics will never know that this topic was published by Hans Freidenthal in 1969.

At this moment, Chengmo came up with four problem-solving ideas: the first one is a bit more complicated, assuming the numbers are X, Y; the sum is X+Y=A, and the product is X*Y=B.According to the dialogue between the two people, X+Y is not the sum of two prime numbers, then the possibility of A is 11, 17, 23
After about 3 minutes of calculation, Cheng Mo figured out that the two numbers are 4 and 13, but he saw the confusion on Du Leng's face, and Xie Minyun was still frowning, obviously still calculating, Cheng Mo could only twitch again The corner of his mouth twitched. It was obvious that he calculated too quickly, so he could only use the simplest Goldbach's conjecture to push this question again, and the answer was the same.

When Yan Yitong asked impatiently: "Can you count it out? I really can't count it and guess the luck of the two! You can't tell me to wait forever?"

Cheng Mo raised his head and looked at Yan Yitong. He pretended to be uncertain and said, "It should be 4 and 13. Did you guess right?"

(There is still only one update today, because it is expected that the old book will be finished yesterday, and the new book will be updated with all my strength, but there is still one chapter to be written in the old book today, so I can only update one chapter today, but starting from the day after tomorrow, every day at noon. Update a chapter around [-]:[-] pm, and update a chapter around [-]:[-] pm, no pigeons will be released.)
(End of this chapter)