1 17. Travel for two families

Xu Sanjia and Li Sijia are going to travel together. These two families have nine family members. They are Xu San (father) and Xu San's wife, and their three sons: Xu Ming, Xu Tao and Liang Xu. Li Si (father), Li Si's wife and their two daughters: Li Na and Li Shan. In addition, the following conditions are known:

(1) There are only three people sitting in a canoe and only three canoes;

(2) Every ship must have a parent ship;

(3) People in the same family can't monopolize a canoe.

Question:

(1) If two mothers (Xu San's wife and Li Si's wife) are in the same canoe, and Xu San's three sons are sitting in different canoes, which of the following conclusions must be correct:

A. There are men and women on each canoe;

B.there is only one woman in the canoe;

C. there is only one person in the canoe;

D Li Na and Li Shan are sitting in the same canoe;

Sanhe Li Si, two fathers, are sitting in the same boat.

(2) If Li Si's wife and Li Shan ride in the same canoe, which of the following groups can ride in another canoe:

A. Xu Tao, Li Si and Li Na;

B. Xu Tao, Li Si, Liang Xu;

C. Xu Tao, Li Na, Xu Ming;

D. Wife of Li Si, Li Na and Xu Sanduo;

E. Xu San's wife, Xu San and Xu Ming.

(3) If Li Si and Xu San's wife are in the same boat, only one of the following five situations is impossible. What is the situation:

A. Xu Tao, Li Si's wife and Li Shan take a canoe;

B. Li Si's wife, Xu Sanhe and Xu Ming, took a canoe;

C Li Si's wife Li Shan and Xu Liang are in a canoe;

D. Li Si's wife, Xu Ming and Liang Xu, take a canoe;

Li Erna, Xu Sanduo and Li Shan take a canoe.

(4) The three sons of the Xu family rode in different canoes. In this regard, P, Q and Zhang put forward three conclusions:

P concluded that the two daughters of the Li family were not in the same boat;

Q concluded that Li Si and Li Si's wife and husband were not in the same boat;

Zhang concluded that Xu San and Xu San were not in the same boat.

Which judgment must be correct:

A. only p's judgment is correct;

B. only q is correct;

C.p and q are right and Zhang is wrong;

D.P. and Zhang are right and Q is wrong;

E.p.q. and Zhang are right.

(5) On the way, Li Si and two boys went hiking, and the other six people continued their journey in two canoes. If other known conditions of the topic remain unchanged, which of the following groups of children can stay and canoe:

A. Xu Tao, Li Na and Li Shan;

B. Xu Tao, Li Shan, Liang Xu;

C. Xu Tao, Xu Ming, Liang Xu;

D. Xu Tao, Xu Ming, Li Shan;

E. Li Shan, Xu Ming and Liang Xu.

1 18. Which collar has not changed?

One day, two men and two women walked into a cafeteria. Each of them took a price list from the machine as shown below.

50、95

45、90

40、85

35、80

30、75

25、70

20、65

15、60

10、55

(1) Four people want the same food, and their price lists are circled with the same amount (in US cents).

(2) A person can only carry four coins.

(3) Two female coins have the same value, but neither can have the same value; So are these two.

(4) All four people should pay according to the amount circled in the price list, without change.

Question:

Which number is circled?

Note: The denomination of coins can be 1, 5, 1 0,25,50, and the unit is cents or1US dollar (100 cents).

(Hint: This idea is coin pair. Find two groups of coins like this: a group of four coins with the same total value, but neither side of the group can have the same face value. Then find out the amount that can be paid off without change from these pairs. )

1 19. Mr. Xu's wife

Mr Xu knows Zhang, Wang, Yang, Guo and Friday, among which:

(1) Five women belong to two age groups, three under 30 and two over 30;

(2) Of the five women, two are teachers and the other three are secretaries;

(3) Zhang and Yang belong to the same age group;

(4) Guo Hezhou does not belong to the same age group;

(5) Wang Hezhou has the same occupation;

(6) Yang and Guo have different occupations;

Mr Xu's wife is a teacher in her thirties.

Who is Mr Xu's fiancee?

A. Zhang (surname)

B. Wang (surname)

C.yang

D. for Government Use Only (abbreviation for government use only)

E. Zhou

120. Seven members and three bills

Seven State Councillors A, B, C, D, E, F and G may vote on Proposal I, Proposal II and Proposal III. According to the regulations of parliament, a bill can only be passed when four or more members vote in favor. Each member cannot abstain from voting and must vote on all bills. Known:

(1)A oppose these three motions;

(2) All other members agree to at least one motion and oppose at least one motion;

(3)B opposes motion I;

(4)G against motions 2 and 3;

(5)D and C hold the same attitude;

(6)F and G hold the same attitude.

Question:

Who is in favour of motion one?

A.B

B.C

C.D

D.E

take for example

(2) The number of votes for Proposal II is:

A.2

B.3

C4

D.5

E.6

(3) Which of the following conclusions is wrong:

Party A, Party B and Party C agree to the same proposal;

B.b and g agree to the same bill;

C.b has one vote in favor and two votes against;

D.c. two votes for one vote against;

One vote for it, two votes against it.

(4) If one of the three motions is carried, which of the following Members will definitely vote for it:

A.B

B.C

C.E

D.F

take for example

(5) If E has the same number of votes as G, then we can be sure:

A. my motion will be passed;

B. motion 1 will be rejected;

C.ii will pass;

D.ii motion will be dismissed;

E.iii will pass.

(6) If C is in favor of Motion 2 and Motion 3, then we can be sure:

A. my motion will be passed;

B. motion 1 will be rejected;

C.ii will pass;

D.ii motion will be dismissed;

E.iii will pass.

12 1. What is their teacher?

There are three teachers in the office: Wang, Li and Zhao. The subjects they teach are: mathematics. They teach mathematics, physics, politics, English, Chinese and history respectively, and each teacher has to teach two courses. There is such a rule between them. Each teacher teaches two courses. They have such requirements:

(1) The political teacher and the math teacher live together;

Miss Wang is the youngest of the three teachers;

(3) Both the math teacher and Miss Zhao are excellent chess players;

(4) The physics teacher is older than the English teacher and younger than the new teacher;

(5) The oldest of the three teachers lives farther than the other two.

What is their teacher?

122. Determine their nationality

People of six different nationalities are named A, B, C, D, E and Ji respectively. Their nationalities are Han nationality, Miao nationality, Manchu nationality, Hui nationality, Uygur nationality and Zhuang nationality (the name order is not necessarily consistent with the national order).

(1) A, Han people are doctors;

(2) Uighurs and Uighurs are teachers;

(3) C, Miao people are technicians;

(4) B and himself have been soldiers, but the Miao people have never been soldiers;

(5) Hui nationality is bigger than A and Zhuang nationality is bigger than C;

(6) Party B and the Han nationality will travel to Manchu next week, and Party C and the Hui nationality will go to Switzerland for a holiday next week.

Please judge which nationality A, B, C, D, E and Kyrgyzstan belong to?

123. Who did it?

One thing is very difficult for a leader. I never know who did it. The following facts hold. Guess who did it?

(1) At least one of Party A, Party B and Party C has done it;

(2) A did it, and so did B and C;

(3) C did it, so did A and B:

(4) B did it and others didn't;

At least one of Party A and Party C has done it.

124. Queue to guess the hat color.

There are 10 people standing in a row, each wearing a hat. There are three red hats, four black hats and five white hats. Everyone can't see his hat, except the person in front. The last person can see the colors of the hats of the first nine people, the penultimate person can see the colors of the hats of the first eight people, and so on. The first person can't see anything.

Now, start from the man behind and ask him if he knows the color of his hat. If he answers no, he will continue to ask the person in front. If the last nine people don't know, does the first person know his own color hat? Why?

125. Representative's last name

Director Wang has three friends: Lao Zhang, Lao Chen and Lao Sun. There are three passengers on the locomotive. They are the secretary, the deputy secretary and the driver. These three passengers have the same surname as Lao Zhang's friend. Just like the last names of three passengers.

(1) Passenger Lao Chen lives in Tianjin;

(2) Passenger Lao Zhang is a worker with 20 years of service;

(3) the deputy lives between Beijing and Tianjin;

(4) Old people on locomotives often play chess with drivers;

(5) One of the passengers is the neighbor of the delegate. He is also an old worker, and his length of service is exactly three times that of a deputy;

(6) Passengers with the same surname as deputies live in Beijing.

According to the above information, what are the deputy surnames of the three people on the locomotive?

126. What are they doing?

Four students, A, B, C and D, who live in the same room in the school dormitory, are listening to a popular song. One of them is cutting her nails, one is writing, one is standing on the balcony, and the other is reading. Excuse me, what are A, B, C and D doing?

Known:

(1)A Either cutting nails or reading books;

(2)B didn't stand on the balcony or cut her nails;

(3) If A is not standing on the balcony, then D is not cutting nails;

(4)C does not read books or cut nails;

(5)D is either reading a book or standing on the balcony.

127. Who did it?

One of the three students, Xiaohua, Xiao Li and Xiao Lv, helped Xiaohong make up her notes. When Xiaohong asked who did it,

Xiaohua said, "Xiaoli did it."

Xiaoli said, "I didn't do it."

Little green said, "I didn't do it either."

In fact, both of them are lying, and only one is telling the truth. So, who did this good thing?

128. Ranked second

Four students, A, B, C and D, took part in a math contest. After the game, the four of them predicted the ranking as follows:

A said, "C comes first, and I come third."

B said, "I am the first, and D is the fourth."

C said, "I am third, and D is second."

D didn't speak.

When the exam results were finally announced, I found that each of them was half right. Please tell me the ranking order of their games.

129. Players and awards

Xiaoqing, Xiaogang and Xiaohong took part in the Spring Festival Cup competition. Players from Han County, Shazhen and Shuixiang won the first, second and third prizes respectively. Now we know:

(1) Xiaoqing is not a player in Han County;

(2) Xiaogang is not a Shazhen player;

(3) Han county players are not the first prize;

(4) Shazhen players won the second prize;

(5) Xiaogang is not the third prize.

According to the above situation, what kind of player should Xiaohong be and what prize did she win?

130. judging age

A, B and C talk about age together. Each of them said three sentences, two of which were true and one was false.

A said, "I'm only 22 years old this year. I am two years younger than B and older than C 1 year. "

B said, "I'm not the youngest. I am three years behind C, C25 years old. "

C said, "I am younger than A, B is 25 years old, and B is 3 years older than A."

Please judge their ages according to the above three sentences.

13 1.m How many sets did you play?

A, B, C, D and M play chess together. Every two people have to play a game. So far, A has played 4 games, B has played 3 games, C has played 2 games, and D has played 1 game. How many times did M play?

What are their occupations?

There are three professionals named Li, Jiang and Liu, and each of them has two jobs. Their six occupations are writers, musicians, artists, dramatic actors, poets and workers, and they also know the following facts:

(1) Musicians have talked with workers about their appreciation of "classical music" before.

(2) The artist and Li saw off the musicians visiting abroad.

(3) The worker's lover is the writer's sister.

(4) Writers and poets have discussed the issue of "letting a hundred flowers blossom" together;

(5) The artist and Jiang have seen movies together;

(6) Liu Mingshan played chess, and Jiang and the writer repeatedly lost with him.

Please tell me what their occupation is.

Who is the criminal?

One day, a policeman caught four thieves A, B, C and D. Here are their answers:

A said, "B did it."

B said, "D did it."

C said, "I didn't do it."

D said, "B is lying."

It turns out that only one of the four thieves is telling the truth. Do you know who the criminal is?