Everyone wants his intelligence to be great, and he also has a set of questions about intellectual development, which is very interesting and can improve his intelligenc
Everyone wants his intelligence to be great, and he also has a set of questions about intellectual development, which is very interesting and can improve his intelligence. Let's have a try. The following are some interesting puzzles I have compiled for you, hoping to help you.
Adult intelligence problem
Puzzle 1 Pirate Gold Coin-Pirate Gold Coin
After five pirates robbed 100 gold coins, they discussed how to distribute them fairly. They agreed on the distribution principle is:
1 draw lots to determine each person's distribution sequence number: 1, 2, 3, 4, 5;
2. The pirates who draw lots 1 put forward the distribution plan, and then five people vote. If the plan is agreed by more than half of the people, it will be allocated according to his plan, otherwise, the number 1 will be thrown into the sea to feed sharks;
3 If 1 is thrown into the sea, No.2 puts forward the distribution plan, and then there are four people left to vote. If and only if more than half of the people agree, they will be allocated according to his proposal, otherwise they will be thrown into the sea;
4 and so on.
Assuming that every pirate is extremely intelligent and rational, they can make strict logical reasoning and rationally judge their own gains and losses, that is, they can get the most gold coins on the premise of saving their lives. At the same time, assuming that the results of each round of voting can be implemented smoothly, what distribution scheme should the pirates who have drawn 1 put forward to avoid being thrown into the sea and get more gold coins?
Adult intelligence problem
Mr. S, Mr. P and Mr. Q know that there are 16 playing cards in the desk drawer: hearts A and Q, 4 spades J, 8, 4, 2, 7, 3 flowers K, Q, 5, 4 and 6 diamonds A and 5. Professor John chooses a card from 16 card, tells Mr. P the number of points in this card, and tells Mr. Q the color of this card. At this time, Professor John asked Mr. P and Mr. Q: Can you infer what this card is from the known points or colors? So, Mr. S heard the following conversation:
Mr. P: I don't know this card.
Mr q: I know you don't know this card.
Sir: Now I know this card.
Mr. Q: I know that, too.
After listening to the above conversation, Mr. S thought about it and correctly deduced what this card was.
Excuse me: What kind of card is this?
Adult intelligence problem
It takes 1 hour to burn an uneven rope from beginning to end. Now several ropes are made of the same material. How to time an hour and fifteen minutes by burning rope?
Adult intelligence problem
Suppose there are 100 ping-pong balls arranged together, and two people take turns to load the balls. The winner is the person who can get the100th table tennis. The condition is: the person who holds the ball must take at least 1 at a time and not more than 5 at most. Q: If you are the first person to take the ball, how many should you take? How can I take it in the future to ensure that you can get the100th table tennis?
Adult intelligence problem
1 yuan a bottle of soda, drink two empty bottles for a bottle of soda, Q: You have 20 yuan money, how many bottles of soda can you drink at most?
Reference answer:
The first question:
1:96 2:0 3:0 4:2 5:2
First of all, when voting on the proposal of 3, 4 will support 3, because otherwise he will be opposed by 5 and die.
Therefore, if 1 2 dies, the scheme of 3 must be 100, 0, 0, and it will be supported by 3 and 4. At this time, the payoffs of 4 and 5 are 0, so 1 2 can bribe 4 and 5 to get support.
At the same time, the expected return of 3 is 100, and he will be desperate to oppose 1 2.
And if 1 dies, the scheme of 2 must be 98,0, 1, 1, and it will definitely pass.
Therefore, the optimal scheme of 1 is 96,0,0,2,2, which will definitely pass.
In fact, 98, 0, 0, 1, 1 is ok, depending on the mood and cruelty of 4 and 5.
The second question:
The first sentence of p means that the number of points is one of a, q, 5 and 4.
Q: The first sentence indicates that the color is hearts or diamonds.
The second sentence of p means it is not a.
The second sentence of q can only be box 5.
Answer: Box 5
The third question:
Take three ropes.
First light both ends of the first root and light one end of the second root at the same time. t=0
When the first one burns out, light the other end of the second one. T = 30 minutes
When the second root burns out, light the two ends of the third root. T = 45 minutes
When the third root burns out, t = 75 minutes.
The fourth question:
Take four first.
Then if the opponent takes 1 5, I will take 5 1. So in any case, the number of balls left is 6n, N minus 1. Finally, I just got six balls, and then I won.
The fifth question:
39 bottles
20->； 10->； five
Take four bottles for two bottles, another bottle, this empty bottle and 5-4 empty bottles for another bottle. 20+ 10+5+2+ 1+ 1=39
Complete works of mathematical puzzles for primary school students
1, Xiaohua's father can cut off five of his own nails in 1 minute. How many nails can he cut in five minutes?
Xiaohua took 50 yuan's money to the store and bought a car worth 38 yuan, but the salesman only gave him 2 yuan's money. Why?
It takes three minutes for three children to eat three cakes, and how long does it take for ninety children to eat ninety cakes?
4. There are two blind people. They all bought two pairs of black socks and two pairs of white socks. Eight pairs of socks are all made of exactly the same cloth and size, and each pair of socks is connected with trademark paper. Two blind people accidentally mixed up eight pairs of socks. How can each of them get back two pairs of black socks and two pairs of white socks? 30 seconds and 30 minutes
Fill in the blank:11235 _ _134.
6. What word is universal?
7. The clock just struck 13. What should you do now?
8. What were the four great inventions of ancient China? Name the second one.
9. Mom has seven pieces of candy. She wants to give them to the three children equally, but she doesn't want to cut the remaining candy. What should mom do?
10, there are two unevenly distributed incense, and the burning time is one hour. What method can be used to determine a period as 15 minutes? 1 min and 50 min
1 1. The canteen brought back 70 baskets of Chinese cabbage and radishes, more radishes than Chinese cabbage 18 baskets. Then, the cabbage basket and radish basket were brought in.
12, a house has four corners, one corner has a cat, and there are three cats in front of each cat. How many cats are there in the room?
13. There is a row of trees along the road in the park, and the distance between each tree is 3 meters. What is the distance between the first tree and the sixth tree?
14, a is 5 km away from school, and b is away from school 10km. How many kilometers are a and b apart?
1 5,5,4,3,2,1Type the mathematical expression.
16. On the vast grassland, there is a cow grazing. This Niu Yi only ate half of the grass on the grassland in 2008. Q: How many years does it take to eat all the grass on the lawn?
17, 1 yuan can buy a bottle of soda. After drinking soda, two empty bottles can be exchanged for one soda. Q: If you have 20 yuan money, how many bottles of soda can you drink at most?
18, the title is like this: 1=5 2=25 3=75 4=2435 Q 5=?
answer
1 20, including fingernails and toenails
2. Because he paid the salesman 40 yuan, he only gave him 2 yuan;
Three or three minutes, ninety children eat at the same time.
4. Take apart each pair of socks, one person takes a pair, and there is no difference between left and right socks. Finally get back two pairs of black socks and two pairs of white socks.
5、8
6, * * * Numbers
7. This clock should be repaired;
China's four ancient inventions were the compass, gunpowder, movable type printing and papermaking. Say the second thing.
9. Mom eats one piece first, and then gives two pieces to each child;
10, no matter from which end, it takes 1 hour to burn completely, so it takes half an hour for both ends to burn at the same time, but the final burning place is not necessarily the middle of the incense. So light the first one at the same time
One has two ends, two ends, and the first one burns for half an hour. At this time, the other end of the second root lights up and starts timing. It takes 15 minutes to burn it all.
1 1、26; Forty-four
12, 4;
13， 15m；
14 and 5km to 15km.
15, countdown
16, it will never eat up the grass, because the grass will continue to grow;
17, * * * can drink 37 bottles;
18、5= 1