I wanted to make a series, but it turned out to be "a newborn hamster" and could not reproduce (is hamster parthenogenetic? )
Liu Bei was arranged by Liu Biao to guard the Jingzhou portal in Xinye. In order to let Liu Bei, Guan Yu, Zhang Fei, Mi Zhu and others guard the new field with peace of mind, Liu Biao decided to dedicate four good horses with different speeds to Liu Bei. From Jingzhou to Xinye, the four horses need 1 hour, 2 hours, 4 hours and 6 hours respectively. However, Liu Biao's bodyguard can only take two horses at a time. He must take a horse when he returns to Jingzhou from Xinye. A fast horse must also follow the speed of a slow horse.
How long will it take to transport all the horses to Xinye?
1 hour and 2 hours take 2 hours to walk together, and it takes 1 hour to come back by bike.
It takes six hours to walk together for four hours and six hours, and it takes two hours to come back by bike.
1 hour and 2 hours go together, which takes 2 hours.
A * * * takes 2+ 1+6+2+2= 13 hours.
One day, when The Story of Diesim was asked about her birthday, she replied, "I will be 22 years old the day after tomorrow, but I was still a teenager last year 1 month." . Please infer the story of diusim's birthday from this information.
Today is 65438+February 30th. The Story Of Diu Sim's birthday is the second day of the first month. Last year, she was the last day of 19. The second day of the first month is the first day of 20 years old. On the second day of the first month of this year, 2 1 year old. The day after tomorrow, she will be 22.
In order to unify the time calculation of the three armed forces, Zhuge Liang invented a timer, which is 12 hours, 60 minutes per hour, accurate to the minute only. Noon 12 and midnight 12 are counted as 12:00. The time of the timer is expressed by numbers, which is exactly the same as today's electronic watch, such as 3:33.
Excuse me: How many times will there be more than three consecutive numbers in one day?
1: 1 1 2: 22 3: 33 4: 44 5: 55 0: 00 10: 00 1: 1 12:.
Cao Cao led his troops to March for hundreds of miles, just in time to see a wooden manpower waterwheel (similar in shape to today's Ferris wheel) by the river. The waterwheel usually draws water to irrigate farmland, but it needs manpower to drive it. The waterwheel is equipped with 10 bucket of water, and one bucket reaches the water outlet every 1 minute. Cao Cao sent soldiers to the waterwheel by the river to get water to drink. Excuse me: The soldiers started to run the waterwheel manually in the morning 1 1, and the waterwheel finished running 30 minutes later. So, how many buckets of water can soldiers pump?
A barrel reaches the water outlet every 1 minute, which means that every 2 minutes 10 barrel reaches the water outlet, and 10*30/2 = 150 barrel of water can be pumped in 30 minutes.
Zhou Yu is ill in bed because of the east wind. Zhuge Liang said, "If you want to break Cao Bing, attack it with fire. Everything is ready, only the east wind. " So Zhou Yu, Lu Su, Sun Quan and Liu Bei were invited to play mahjong at the altar. Zhuge Liang prepared a set of 65,438+037 mahjong cards (65,438+036 mahjong cards+65,438+0 flower cards), shuffled the cards three times, and built a mahjong, so that four people could draw cards one by one. Zhuge Liang said:
Question: What is the probability of winning all four games before drawing that card?
41137, 654381136,1135, 0 * 2.
= 4*3*2* 1 /( 137* 136* 135* 134)
Battle of Red Cliffs, Cao Cao's army is under siege, and the wind of Soochow's masters is gradually rising. Zhuge Liang used Lu Su to lobby Minister Wu Dong, and Wu Dong counselors attacked Zhuge Liang in succession, all of which were refuted by Zhuge Liang. Seeing that the counselor of Dongwu lost face, Zhang Zhao was eager to save face, so he took out an expert solution: "Excuse me, Mr. Kong Ming, how many times did the number [9] appear from 1 to 100?" Hearing this, all the counselors showed their pride. Kong Ming gently shook the feather fan and smiled and said a number. All the consultants were dumbfounded by the smell, and all the people were surprised. "Mr Zhuge is really smart! Clothing is also clothing. "
1 ~ 9,9 occurrence1time,
1 0 ~19,9 appeared1times.
20 ~ 29,9 occurrences 1 time.
30 ~ 39,9 occurrences 1 time.
40 ~ 49,9 occurrences 1 time.
50 ~ 59,9 occurrences 1 time.
60 ~ 69,9 appears 1 time.
70 ~ 79,9 appears 1 time.
80 ~ 89,9 occurrence 1 time.
90 ~ 99,9 appears 1 1 time.
One * * * twenty times
During his stay in Battle of Red Cliffs, one day, in order to thank Sun Liu for his alliance, Zhou Yu hosted a banquet for Liu Bei, Zhuge Liang and other guests, and everyone sat around the round table at equal intervals.
Among them, Da Qiao and Xiao Qiao are women, and the seats next to and in front of them are not of the same sex. So, do you know how many people have been sitting at the round table?
If there are four people, they are not satisfied with "none of the people sitting in the front seat are of the same sex".
If there are six people, they are satisfied that the seats next to and in front of them are not of the same sex.
At least six people.
It is said that when Liu Bei temporarily lived in Cao Cao's place, he farmed in the garden every day and kept a low profile. One day, Cao Cao sent someone to invite Liu Bei to drink in a small pavilion, which became a famous cooking wine hero when he was a child.
Liu Bei thought the timer at home was five minutes slow, but in fact it was five minutes fast.
Cao Cao thought the timer at home was five minutes fast, but in fact it was five minutes slow.
Both Liu Bei and Cao Cao looked at the timer at home and arrived at the pavilion on time to attend the meeting according to the imagined time.
So, how many minutes did Liu Bei arrive earlier than Cao Cao?
When Liu Bei's timer pointed to the appointed time, it was actually five minutes short.
When Cao Cao's timer points to 5 minutes before the appointed time, it has actually reached the appointed time. At this time, Liu Bei has arrived for 5 minutes, so Liu Bei arrived earlier than Cao Cao 10 minutes.
Since Lu Bu met the story of Diusim at a banquet, he fell in love with him at first sight and admired him. He asked people from all over the country to enjoy flowers in the suburbs and tell the story of Dixin. The story of diusim thinks that Lu Bu is foolhardy and refuses to see him. He sent someone to test Lu Bu: "If the day after tomorrow is Sunday, what day is the day after tomorrow?" He said that if Lu Bu answered this puzzle, he promised to enjoy the flowers with Lu Bu.
Lu bu racked his brains and was puzzled. What day is today? Can you help Lu Bu solve this difficult problem?
The day after tomorrow is tomorrow, not Sunday.
The day before yesterday was yesterday, not Friday.