The article proposes ten tasks, when thinking about the solution of which, children and adolescents will use non-standard thinking, i.e., strive to find new approaches and unusual solutions to the situations proposed to them.
Tasks:
1. A man lives on the top floor of a very tall building. Every day he takes the elevator down to the first floor, leaves the building and goes to work. When returning from work, a person takes the elevator only halfway up the building, and walks the rest of the way. Although, when it rains, a person takes the elevator to his floor. Why does he do this?
2. A man and his son get into a car accident. The father dies on the spot, and the child is taken to the hospital. When he is placed on the operating table, the surgeon says: “I cannot operate on this boy, he is my son!” How can this be?
3. The man is dressed all in black: black shoes, socks, pants, coat, gloves and a ski mask. He walks along a remote street where all the lights are turned off. A black car comes towards him with its headlights off, but somehow stops in time. How did the driver see the person?
4. One day Polina celebrated her birthday. Two days later, her older twin brother, Ivan, celebrated his birthday. How could this happen?
5. Why are round manhole covers better than square ones?
6. A man went to a party and drank punch (a cocktail served in large bowls). He then immediately left the party. All other partygoers who drank the punch subsequently died from poisoning. Why didn't this man die?
7. A woman had two sons who were born at the same hour, on the same day of the same year. But they weren't twins. How could this be?
8. There are two plastic jugs (flasks) filled with water. How do you move water into a barrel without jugs or any dividers and determine which water is from which jug?
9. Can you name three days in a row without using the words “Monday”, “Tuesday”, “Wednesday”, “Thursday”, “Friday”, “Saturday” and “Sunday”? (And names of days in any language).
10. This is an unusual text. I wonder how quickly you can figure out what's unusual about it. He looks normal and you might think there's nothing wrong with him. But the text is really okay! He's just unusual. Study it and find out what might be wonderful about it. If you think well, you can come to the answer.
Answers:
1. This man is very, very short and can only reach half of the elevator buttons. But when it rains, a person takes an umbrella with him and uses it to press the button for his floor in the elevator.
2. His mother was a surgeon.
3. It happens during the day.
4. During the birth, the mother of the twins was sailing on a ship. The older twin, Ivan, was born first early on March 1st. The ship then crossed the time zone and Polina, the younger twin, was born on February 28th. Thus, the younger twin celebrates his birthday two days before his older brother.
5. The square manhole cover may turn over diagonally. The round lid cannot turn over. Therefore, for safety and practicality, all manhole covers should be round.
6. The poison got into the punch from the ice cubes that were floating in it. When the person drank the punch, the ice was completely frozen. Gradually it melted, poisoning the punch.
7. They were two of triplets (or quadruplets, etc.) This is a conundrum that puzzles many people. They try to come up with outlandish solutions using test tube babies or surrogate mothers. Why does the brain look for complex solutions when there is a much simpler one?..
Logic problems are perhaps the most effective tool for developing logic and thinking in both children and adults.
Solving a logic problem involves a complex thought process. This is the sequential performance of certain logical actions, working with concepts, using various logical structures, building a chain of precise reasoning with correct intermediate and final conclusions.
Unlike most mathematical and other types of problems, when solving logical problems, the key is not finding the quantitative characteristics of an object, but determining and analyzing the relationships between all objects of the problem.
Take an integrated approach
Among the variety of logical problems, children often choose a couple of their favorite categories and immerse themselves in solving them. Is this enough?
Surely most of us have taken logic level tests at least once. Most of them are made up of nothing but syllogisms or trick questions. We do not offer such tests because we know for sure that it is impossible to determine the level of development of logical thinking with the help of a dozen or two questions, even approximately. Just like developing non-standard thinking by solving only certain types of logical problems.
Classical logical, combinatorial and truth problems, patterns and mathematical puzzles, problems about figures in space and development, permutations and movement, weighing and pouring; solved from the end, using tables, segments, graphs or Euler circles - this is not the whole variety of logical problems, the solution of which activates all kinds of mental operations and develops creative, non-standard thinking.
Logic is a tasty treat for the mind
This is exactly what the students wrote on the board before the start of one of our logic circle classes. What is the beauty of logic problems?
- they will be equally interesting to both children interested in mathematics and “humanities”;
- many of them do not require knowledge of the school curriculum;
- Even a preschooler without reading skills can solve them (for example, Sudoku, puzzles, puzzles with matches, “gears” and other problems in pictures).
Children love to decide logic problems and riddles. They are interested! When I worked at school, I saw that the children coped with the program, mechanically memorizing how to solve certain standard problems.
And problems with stars immediately enlivened the class; both strong and weak students were included in the discussion process. At home, the children could and wanted to explain this task to their parents themselves. But even these problems with asterisks were located randomly on the pages of the textbook; no system was developed.
Bitno Galina Mikhailovna
LogicLike head teacher, highest category teacher
Only a systematic and integrated approach creates favorable preconditions for the formation of non-standard thinking. “Food for the mind” should also be balanced and varied. Try it yourself and invite your children to solve just such a selection of problems. This will help identify those links in logic that need to be worked on more diligently.
Try it yourself
In the online platform Logiclike, created to develop logic and mathematical abilities in children 5-12 years old, the authors tried to implement everything that is often lacking in both students and teachers in school programs. Systematicity, involvement, interactivity, visibility, motivation... But first of all, this is food for the mind, that same “yummy” that makes a child think, reason, test his strength, be creative and rejoice when he manages to find the right solution.
- If you want to develop non-standard thinking and flexible logic in your child, give him a good exercise for the mind in the form of a variety of logical problems, for the solution of which you need to use different logical laws and solution methods (the end-to-end method, the tabular method, using graphs or Euler circles, etc.). d.)
- Approach learning systematically: from theory to tasks, from simple to complex, from familiarization with new types of tasks to reflection.
- Consider the specifics of thinking in younger children school age– use visual images and visual materials.
- It is important not to impose a solution method on children, but to try to carry out the analysis in such a way that they themselves, through logical reasoning, find the correct answer.
- Introduce game elements into the learning process, use the teaching capabilities of IT.
- Logic classes, like sports training, require regularity and a gradual increase in the complexity of tasks.
Exercise with your child and have fun!
In Turkey, many shoe shiners offer their services to passersby absolutely free of charge.
However, those who decide to take advantage of the offer pay them money themselves.
Why?
2. The hotel has 7 floors. The first floor accommodated eight people, each subsequent floor accommodated 2 more than the previous one. On which floor of the hotel is the elevator called most often?
3. You were given this, it still belongs to you. You have never passed it on to anyone, but everyone you know uses it. What is this?
4. They don’t eat it raw, but throw it away boiled. What is this?
5. How many years did the “Hundred Years’ War” last?
6. Three tractor drivers have a brother, Sergei, but Sergei has no brothers. Could this be possible?
7. There were 50 candles burning in the room, 20 of them were blown out. How many will be left?
8. If it is raining at 12 o'clock at night, can we expect sunny weather 72 hours later?
9. A tin can was placed on the edge of the table, tightly closed with a lid, so that 2/3 of the can hung from the table. After some time, the can fell. What was in the jar?
10. Is it possible to create another element from two chemical elements?
11. As you know, all native Russian female names end in either “a” or “ya”: Anna, Maria, Olga, etc. However, there is only one thing female name, which ends in neither “a” nor “i”. Name it.
12. Name five days without giving numbers (eg 1, 2, 3,...) or names of days (eg Monday, Tuesday, Wednesday...).
13. When is the best time for a black cat to get into the house?
14. There are a ruler, a pencil, a compass and an eraser on the table. You need to draw a circle on a piece of paper. Where to start?
15. One train travels from Moscow to St. Petersburg with a delay of 10 minutes, and the other from St. Petersburg to Moscow with a delay of 20 minutes. Which of these trains will be closer to Moscow when they meet?
16. Three swallows flew out of the nest. What is the probability that after 15 seconds they will be in the same plane?
17. There are two coins on the table; in total they give 3 rubles. One of them is not 1 ruble. What coins are these?
18. How fast should a dog run so as not to hear the clink of a frying pan tied to its tail?
19. A satellite makes one revolution around the Earth in 1 hour 40 minutes, and another in 100 minutes. How can this be?
20. The roof of one house is not symmetrical: one slope makes an angle of 60 degrees with the horizontal, the other makes an angle of 70 degrees. Suppose a rooster lays an egg on the ridge of a roof. In which direction will the egg fall - towards a flatter or steeper slope?
21. There is an elevator in a 12-story building. Only 2 people live on the ground floor; from floor to floor the number of residents doubles. Which button in the elevator of this building is pressed most often?
Answers:
1. Enterprising Turks clean only one shoe for free, and in order not to look stupid in one polished shoe, a passerby is forced to pay for the cleaning of the second one.
2. On the first.
3. Your name.
4. Bay leaf.
5. 116 years old. Yes, yes, from 1337 to 1453.
6. Yes, if the tractor drivers are women, or we are talking about different Sergei.
7. 20 left: blown out candles will not burn out completely.
8. No - in 72 hours it will be midnight again.
9. A piece of ice.
10. Yes, galvanic.
11. Love.
12. The day before yesterday, yesterday, today, tomorrow, the day after tomorrow.
13. Many people immediately say that at night. Everything is much simpler: when the door is open.
14. You need to get a sheet of paper.
15. At the moment of meeting they will be at the same distance from Moscow.
16. 100%, because three points always form one plane.
17. 2 rubles and 1 ruble. One is not 1 ruble, but the other is 1 ruble.
18. This problem in the company is immediately identified by the physicist: the physicist immediately answers that she needs to run at supersonic speed. Of course, it is enough for the dog to stand still.
19. 1 hour 40 minutes = 100 minutes.
20. Roosters don't lay eggs.
21. Regardless of the distribution of residents by floor, button "1".
Preschoolers solve this problem in 5-10 minutes. Some programmers take up to an hour to complete it. But many people, after writing several sheets of paper, give up.
Parking space numberIt usually takes a six-year-old child no more than 20 seconds to solve this problem. But it often confuses unprepared adults. So what number is hidden under the car?
Riddle for a geniusA genius finds a solution in 10 seconds. Bill Gates - in 20 seconds. Harvard University graduate - in 40 seconds. If you found the answer in 2 minutes, then you belong to the 15% of most gifted people. 75% of people are unable to solve this problem.
Ruler of the IslandThe autocratic ruler of one island wanted to prevent aliens from settling on the island. Wanting to maintain the appearance of justice, he issued an order according to which anyone wishing to settle on the island must, after thinking carefully, make any statement, and after a preliminary warning that his life depended on the content of this statement. The order read: “If the alien tells the truth, he will be shot. If he tells a lie, he will be hanged." Can an alien become an island resident?
Project approvalAccording to the agreement, the procedure for approving a new project in the development of which institutions A, B, and C participate is as follows: if A and B participate in the approval first, then institution B must also participate. If approval occurs first in institutions B and C, Institution A also joins. The question is: are such cases possible when approving a project when only institutions A and B would take part in it, while the participation of institution B would not be necessary (while maintaining the agreement on the procedure for approving projects)?
Two tribesThere are two tribes living on the island: well done. Those who always tell the truth, and liars who always lie. The traveler met the islander, asked him who he was, and when he heard that he was from a tribe of fellows, he hired him as a guide. They went and saw another islander in the distance, and the traveler sent his guide to ask him to what tribe he belonged. The guide returned and said that he claimed to be from a tribe of fellows. The question is: was the guide a good fellow or a liar?
Aborigines and AliensThree people stand before the court, each of whom can be either an aborigine or an alien. The judge knows that natives always answer questions truthfully, but aliens always lie. However, the judge does not know which of them is a native and which is an alien. He asks the first one, but does not understand his answer. Therefore, he asks first the second, and then the third, what the first answered. The second one says that the first one said he was an Aborigine. The third says that the first called himself an alien. Who were the second and third defendants?
Beetle on tapeThe beetle went on a journey. He crawls along a tape, the length of which is 90 centimeters. At the other end of the ribbon, two centimeters from the end, is a flower. How many centimeters will the beetle have to crawl to the flower: 88 or 92 (provided that it crawls all the time on one side and only at the end can it cross the end of the tape to the other side)?
PurchaseMarina spent a long time choosing which jug to buy. Finally I chose. The saleswoman put the purchase in a box. What did Marina buy? How many jugs did the saleswoman put on the shelves, which ones they were on before?
TouristThe tourist was walking towards the lake. He reached a crossroads, from where one road led to the right and the other to the left; one went to the lake, the other did not. There were two guys sitting at a crossroads, one of them always told the truth, the other always lied. Both of them answered either “yes” or “no” to any question. The tourist knew all this, but he did not know which of them was telling the truth and which was lying; he also did not know which road led to the lake. The tourist asked only one question to one of the guys. What kind of question was it, since he knew from the answer which road led to the lake?
broken windowDuring the break there were nine students left in the class. One of them broke the window. The following answers were received to the teacher's question:
How many triangles? What team?Read carefully and do not write anything down: Torpedo tops the standings, Spartak is in fifth place, and Dynamo is right in the middle between them. If Lokomotiv is ahead of Spartak, and Zenit takes place immediately behind Dynamo, then which of the listed teams is in second place? You are given 30 seconds to think.
Project approval procedureThe enterprise has three workshops - A, B, C, which have agreed on the procedure for approving projects, namely: 1. If workshop B does not participate in the approval of the project, then workshop A does not participate in this approval. 2. If workshop B takes part in approval of the project, then workshops A and C take part in it. The question is: under these conditions, is workshop C obliged to take part in the approval of the project when workshop A takes part in the approval?
Evening walkWhich of these nine mustaches went for an “evening walk”?
7 buttonsWhich of the 7 buttons should you press? For the bell to ring? It is recommended to find the path mentally.
Make a tableIn the Moscow semi-final of the European Basketball Championship, held in Soviet era, the places were distributed as follows: USSR - 14 points, Italy and Czechoslovakia - 12 each, Israel - 11, Finland - 10, East Germany and Romania - 9 each, and Hungary - 7 points. According to the regulations. Each team received 2 points for a win, 1 point for a loss, and 0 points for a no-show. No draws were allowed. Make a summary table of the results of the games if you know that the Finnish team won against the Italian team and lost to the Romanian team.
Explanation is inevitableOn Tuesday at about 10 o'clock in the morning a stranger burst into Inspector Warnicke's room. He was extremely excited. His hands were shaking, his tousled hair stuck out in all directions. A few minutes later, having lit a cigarette and calmed down, the visitor began his story: - This morning I returned from vacation. I had to shake on the train all night. I didn’t get enough sleep and, when I came home, I decided to lie down on the sofa. Because of fatigue, I did not immediately notice that the piano had disappeared from the room, and the coffee table and armchair had been moved out of place. On this piece of paper I drew a plan for the arrangement of furniture in the room before I left. “Here’s what, dear,” said Inspector Warnicke, quickly glancing at the drawing, “First of all, it’s absolutely clear to me that you didn’t have a piano at all.” Now let's find out why you needed this lie. Why did Inspector Warnicke doubt the veracity of the visitor's story?
LOGIC PROBLEMS
Logic problems, just like mathematics, is called “mental gymnastics.” But, unlike mathematics, logic problems is an entertaining gymnastics that allows you to test and train your thought processes in a fun way, sometimes from an unexpected perspective. Solving them requires intelligence, sometimes intuition, but not special knowledge. Solving logic problems consists in thoroughly analyzing the conditions of the problem, unraveling the tangle of contradictory connections between characters or objects. Logic problems for children- these are, as a rule, whole stories with popular actors, in which you just need to get used to, feel the situation, visualize it and grasp the connections.
Even the most difficult logic problems do not contain numbers, vectors, functions. But a mathematical way of thinking is necessary here: the main thing is to comprehend and understand the condition logical problem. The most obvious solution on the surface is not always the right one. But most often, solving a logic problem turns out to be much simpler than it seems at first glance, despite the confusing condition.
Interesting logic problems for children according to the most different subjects- mathematics, physics, biology - cause them increased interest in these academic disciplines and help in their meaningful study. Logic problems on weighing, transfusion, tasks on non-standard logical thinking will also help in everyday life solve everyday problems in a non-standard way.
In the process of solving logic problems you will get acquainted with mathematical logic - a separate science, otherwise called “mathematics without formulas”. Logic as a science was created by Aristotle, who was not a mathematician, but a philosopher. And logic was originally part of philosophy, one of the methods of reasoning. In his work “Analytics,” Aristotle created 20 patterns of reasoning, which he called syllogisms. One of his most famous syllogisms is: “Socrates is a man; all people are mortal; So Socrates is mortal." Logic (from ancient Greek. Λογική - speech, reasoning, thought) is the science of correct thinking, or, in other words, the “art of reasoning.”
There are certain techniques solving logical problems:
way of reasoning, with the help of which the simplest logical problems are solved. This method is considered the most trivial. During the solution, reasoning is used that consistently takes into account all the conditions of the problem, which gradually lead to a conclusion and the correct answer.
table method, used in solving text logic problems. As the name suggests, solving logical problems involves constructing tables that allow you to visualize the conditions of the problem, control the reasoning process, and help you draw correct logical conclusions.
graph method consists in sorting through possible options for the development of events and the final choice of the only correct solution.
flowchart method- a method widely used in programming and solving logical transfusion problems. It consists in the fact that first operations (commands) are allocated in the form of blocks, then the sequence of execution of these commands is established. This is a flowchart, which is essentially a program, the execution of which leads to the solution of the task.
billiards method follows from trajectory theory (one of the branches of probability theory). To solve the problem, you need to draw a billiard table and interpret the actions by the movements of the billiard ball along different trajectories. In this case, it is necessary to keep records of possible results in a separate table.
Each of these methods is applicable to solving logical problems from different areas. These seemingly complex and scientific techniques can be used in solving logic problems for grades 1, 2, 3, 4, 5, 6, 7, 8, 9.
We present you a wide variety logic problems for grades 1, 2, 3, 4, 5, 6, 7, 8, 9. We have selected for you the most interesting logic problems with answers, which will be of interest not only to children, but also to parents.
- choose for the child logic problems in accordance with his age and development
- take your time to reveal the answer, let the child find it himself logical solution tasks. Let him come to the correct decision himself and you will see what pleasure and feeling of delight he will have when his answer coincides with the given one.
- in progress solving logic problems Leading questions and indirect clues indicating the direction of reflection are acceptable.
Using our selection logic problems with answers you will really learn to solve logical problems, expand your horizons and significantly develop logical thinking. Go for it!!!
Solving logical problems - the first step towards child development.
E. Davydova
Logic is the art of arriving to an unpredictable conclusion.
Samuel Johnson
Without logic it is almost impossible to enter our world brilliant discoveries of intuition.
Kirill Fandeev
A person who thinks logically stands out nicely against the backdrop of the real world.
American saying
Logic is the morality of thought and speech.
Jan Lukasiewicz
A journalist from Singapore posted on his page in social network puzzle, which he said was intended for 10-year-old children. A few days later, this problem blew up the Internet community and heated debates broke out in the comments. However, even the TV presenter himself did not know the correct solution when he published this task - his friend’s niece told him about it. The journalist quarreled with his wife over this puzzle.
After his post became very popular, specialists from the SASMO organization contacted him and said that the problem was actually for children over 14 years old.
Don't be discouraged if you can't give a solution right away, as this task is worth thinking about.
Develop your brain every day through play with the whole family with
Puzzle:
Two friends recently met a girl. They really want to know what day she was born. The girl named 10 dates, one of which could theoretically be her birthday: September 15, September 16, September 19, October 17, October 18, November 14, November 16, December 14, December 15 and December 17. Then she told one of them (A) the correct month, and the other (B) the date.
“I have no idea what day she was born, but I’m sure B too,” A says after that.
“Initially, I didn’t know which day was correct, but now I’m 100% sure,” B answered him.
“I know exactly the correct date, after phrase B,” A ended the conversation.
When does the girl celebrate her birthday?
| Answer | Show answer> |
|---|---|
If the girl was born on October 18 or September 19, then B would name the month, purely logically, so we ignore it. In the case where a girl told B that she was born in October or September, then theoretically it would be October 18 or September 19. But, given this reasoning, why is A absolutely sure that B does not know her date of birth? October and September can be removed - the girl was born either in November or December. Remains November 14, November 16, December 14, December 15 and December 17. Here 14 is repeated, and if the girl gave B this number, he still could not give the correct answer. After B's response, A found out when the girl's birthday was. If she said December, he would not be able to give an exact answer, so there is only one correct answer left - November 16th. |
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Logical problem about a pet store
Stepan Alekseevich recently purchased a store and decided to devote it to selling animals. He started with decorative dogs because he already had them. Stepan Alekseevich bought spacious enclosures for them. If he lets one dog into each enclosure, then one will be left without a house. And if he places two dogs in each enclosure, then one enclosure will be empty. How many enclosures did Stepan Alekseevich buy, and how many dogs did he have?
Task “Two flocks” - developing logical thinking
There are two packs of wolves in the forest: the truthful ones - who never lie - and the liars who never tell the truth. One day, a traveler came across a wolf and, when he learned that he was from a true pack, he asked to be escorted to the edge of the forest in order to get out of it. When they walked further together, they met another wolf, and the wolf guide, at the request of the traveler, ran to find out which pack the second wolf belonged to. When he returned, he said that that wolf claimed to be part of a true pack. Question: What pack does the wolf that accompanied the traveler belong to?
Logical riddle about a broken vase
Nine children were left in one room without parental supervision. When an adult came into the room and saw that all that was left of the handmade vase were fragments on the floor, he began asking everyone who the culprit was. The answers were:
Masha: It's all Roller!
Pasha: Not true.
Alina: I did it.
Katya: Either Alina or Natasha broke it.
Valik: Pasha is lying.
Sasha: Alina did it.
Nastya: No, this is not Alina.
Natasha: Neither Alina nor I broke the vase.
Andrey: Natasha is right, but Valik didn’t do this either.
Of all the replicas, only three are true. Who broke the vase in this situation?
Attention task about football
In the football championship, where each team fought each other once, 4 teams participated: “Alpha”, “Beta”, “Omega” and “Gamma”. A team was awarded zero points for a loss, two for a win, and one for a draw. The final match was over: Alpha lost to Omega. But “Alpha” still became the winners of the games, and “Omega” did not improve their team’s score. How did the Omega and Gamma teams play among themselves?
| Answer | Show answer> |
|---|---|
There were 6 games in total, which means 12 points. Alpha has no more than 4 points because the final game is won. But a team cannot have even 3 points, because then other teams have no more than two points (Alpha is in first place), so all groups have no more than 9 points. That. “Alpha” has four points and they defeated “Beta” and “Gamma”. Until the final game, Omega could not have two or even one point. Otherwise, if they had defeated Alpha, they would have moved up to a higher place. Therefore, Omega lost the other two games and therefore scored only two points. Consequently, “Beta” and “Gamma” defeated “Omega”, and there was a draw between them. |
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Logic problem “Three sisters”
Three sisters, Anastasia, Ekaterina and Anna, teach various subjects at colleges in New York, Berlin and Amsterdam. Anastasia does not work in New York, and Ekaterina does not work in Berlin. The one who lives in New York does not teach English language. The one who works in Berlin teaches higher mathematics. Ekaterina does not teach psychology. What discipline does Anna teach, and in what city college?
| Answer | Show answer> |
|---|---|
Ekaterina does not work in Berlin, but in New York or Amsterdam. She does not teach psychology, and since she does not work in Berlin, she therefore does not teach higher mathematics. Ekaterina teaches English, so she works not in New York, but in Amsterdam. This means that Anastasia works in Berlin and teaches higher mathematics. Thus, Anna teaches psychology at a college in New York. |
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A number of words - eliminate unnecessary ones
Flounder, trout, dolphin, shark, stingray.
What word is missing in this series?
Logical problem about sons
Ivanov and Kotov each have 2 sons who are under nine. Their names are Andrey, Vitalik, Lesha and Vasya. Andrey is three years younger than his brother. Vitalik is older than all the boys. Lesha is two times younger than the youngest Ivanov. Vasya is 5 years older than the youngest Kotov. 5 years ago, the difference in the sum of the years of the Ivanov and Kotov children was equal to the sum today.
Match the boys' first and last names and their ages.
Logic problem about elections
Six people - let's call them 1, 2, 3, 4, 5 and 6 - are running for the positions of president, vice president and secretary of the Magic Kingdom. However, it is not at all easy to assign roles for them.
- 1 does not want to dominate in any way.
- If 5 is not the president, then 2 does not want to be in charge, because then it will be necessary to dominate 3. 2 will not cooperate with 6 in any case.
- 3 will not work in the company if 5 and 6 are in charge together. 3 will resign if 6 is the president, or 2 is the secretary.
- 4 does not work with 3 or 5 because he does not want to be subordinate to one or the other.
- 5 does not want to be deputy president. But he does not want to take the post of secretary if 4 is the boss. Plus, 5 will not work with 1 unless 6 takes one of the leadership positions.
- 6 will cooperate only if he or 3 is president.
Everyone thought about who to put in the leadership positions of the Magic Kingdom, but after thinking logically, they still satisfied the needs of each candidate.
How did they distribute the roles for all the candidates?
All logic problems have answers, so you can find out the answer using the button below.
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An interesting task - “Who?”
The editorial staff consists of an editor-in-chief, a proofreader, a layout designer, a deputy editor and an ordinary journalist.
Their surnames are Kovaleva, Krichkovskaya, Ivanchenko, Motyga and Tulka.
When the proofreader and journalist studied at a linguistic university, they rented an apartment together. Editor-in-Chief on at the moment not a family man. Tulka and Kovaleva are enemies. Ivanchenko’s husband was very happy when he learned that the editor-in-chief allowed his wife to take another vacation in August. Hoe was upset when he learned from the editor-in-chief that the layout designer and proofreader would soon get married. Kovaleva and Krichkovskaya are not yet married.
Question: What is the last name of each editorial employee?
