Legend has it that one day, two oil sellers in the street quarreled endlessly. Han Xin passing by just glanced at him out of curiosity. He finally understood that the two men were partners in selling oil. Because of disagreement, they are going to divide the remaining ten catties of oil in the barrel equally and go their separate ways, arguing over the uneven distribution of oil. ?
Han Xin looked at it carefully. They don't have a scale at hand, only a 3 kg oil gourd and a 7 kg crock. They turned the oil drum upside down, but both sides were always dissatisfied, so they quarreled.
Is there any way to accurately divide the oil? Han Xin faced two oil sellers and the oil drums, oil pots and oil gourds in front of him, thinking silently. Suddenly my eyes lit up and I said loudly, "Stop arguing, you can split it equally without a scale!" " "Say that finish, he gave directions to the oil seller. According to Han Xin's method, they divided it again, and they were all satisfied. ?
Solution: First, wrap the oil gourd three times in a row, * * * 9 kg. After the 7 kg crock is filled, there are 2 kg left in the oil gourd. Then pour all 7 Jin of the crock into the oil drum, and then the oil drum is 8 Jin of oil. Then pour all 2 Jin of oil in the oil gourd into the crock. Finally, fill the oil drum with an empty gourd (3 kg) and pour it into the crock. In this way, the oil left in the oil drum and the oil in the crock are exactly 5 Jin. Both sides have their own points, and it happens that everyone's income is exactly the same. ?
Hou, the master of crosstalk, has a good personal relationship with the famous mathematician Hua. ?
One day, when two masters were drinking and chatting, you were very happy to talk to me. Later asked Hua: "Under what circumstances 2+3 equals 4?" China can't understand at the moment. Just as he was deep in thought, Hou Linbao said, "As long as the mathematician is drunk, won't the problem be solved?" ?
Hua couldn't help laughing: "What a humorous master, trying to make fun of me …" He said to Hou: "Please buy a catty of orange juice in the street and bring a packet of fried rice flowers. A catty of orange juice is 44 cents, and I only give you 44 cents here. I don't buy expensive ones, I don't do what I lack! " ?