Tisch
The Clever Boy Once upon a time, there was a king who often amused the ministers around him with difficult questions. If the ministers do it right, he will give them a little reward with a little kindness. If you can't answer, you will be punished or even beheaded.
One day, the king pointed to a pond in the palace and asked, "I will give jewels to anyone who can tell how many buckets of water there are in the pond." If you can't say it, I will' reward' each of you with 50 whips. "Ministers were stumped by this sudden question.
Just as the ministers were in confusion, a little boy came over to herd cattle. He asked what happened and said, "I want to meet this king."
The ministers brought the little boy before the king. Seeing the little boy in front of him was black, thin and small, the king said doubtfully, "If you can't answer this question, you will be beheaded, you know?" Everyone present made a sweat for the little boy, but the little boy answered the king's question unhurriedly. In desperation, the king gave the little boy a gem award. Children, do you know what he answered?
In fact, the king is a problem of insufficient conditions. It is impossible to find the right answer in normal thinking mode. The little boy just caught the key. He replied like this: "it depends on the size of the bucket: if the bucket is as big as the pond, it is a bucket of water;" If the bucket is only half the size of the pond, there are two buckets of water; If the bucket is one-third the size of the pond, that's three buckets of water ... "
The little boy actually broke the habitual thinking mode, and the specific problems were analyzed. How clever and flexible his mind is!
extreme
A young man came to see Mr. Liu and introduced himself: "My name is Yu Jiang. I'm taking a tour group to Hong Kong this time. I heard that your hotel has a comfortable environment and good service. We want to stay in your hotel. " Mr. Liu quickly said enthusiastically, "Welcome, welcome. I wonder how many people are there in your group? "
"People, well, it's a big group."
Mr. Liu was overjoyed: it's great to have big groups and enterprises.
As a tour guide, Yu Jiang saw Mr. Liu's mind. He said slowly, "Sir, if you can count the number of people in our group, we will stay in your hotel."
"Please go ahead." Mr Liu said confidently.
"If I divide my group into four groups, one more person, and then divide each group into four, there will be one more person, and then four groups will be divided into four, there will be one more person, including me, of course. How many people are there at least? "
"How much is a * *?" Mr. Liu immediately thought of it. He must take over the business. "Without specific figures, how to start?" He was a shrewd businessman and quickly replied, "At least 85 people?"
Mr. Yu Jiang said happily, "Exactly, it's eighty-five. Please tell me about your algorithm. "
"The least number of people is the last quartile, and each is one person. It can be inferred that 1×4+ 1=5 (person) precedes the third quartile, and 5×4+ 1=2 1 (person) precedes the second quartile and the first quartile.
"Well, we'll stay with you today."
"How many men and women do you have?"
"There are 55 men and 30 women."
"We only have rooms for 1 1, rooms for 7 people and 5 people. How do you want to live? "
"Of course, sir, you have arranged it, but men and women must be separated and there can be no empty beds."
One more question. Mr. Liu has never met such a guest, so he has to spend more time.
He thought hard and finally came up with a plan: 1 1 two rooms for one person, four rooms for seven people and one room for five people; One female room 1 1 person, seven people in two rooms, five people in one room, and one room * * *1/.
After seeing his arrangement, Mr. Yu Jiang was very satisfied and immediately went through the accommodation formalities.
Made a big deal. Although it is a bit complicated, Mr. Liu is still very happy in his heart.
Tisso
The origin of Arabic numerals Xiaoming is a child who likes to ask questions. One day, he became interested in the numbers 0-9: Why is it called "Arabic numerals"? So he went to ask his mother, "Since 0-9 is called Arabic numerals, it must have been invented by Arabs, mom?"
Mom shook her head and said, "Arabic numerals were actually invented by Indians." About 1500 years ago, Indians used a special word to represent numbers. There are 10 words, and you can write both strokes. Later, these figures were introduced into Arabia. Arabs think these numbers are simple and practical, so they are widely used in their own countries and spread to Europe. In this way, it gradually became the number we use today. Because Arabs have played a great role in spreading these numbers, people are used to calling them' Arabic numbers'. "
Xiao Ming heard this and said, "So that's it. Mom, can this be called' making a mistake'? " Mom smiled.