Mr. Zhang was very busy at work and didn't go home for five days. After returning home, he tore off the calendar of the five days. The sum of the five days' dates is 45. What's the date of Mr. Zhang's coming home?

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• 1. Mr. Zhang was very busy at work and didn't go home for five days. After returning home, he tore off the calendar of the five days. The sum of the five days' dates is 45. What's the date of Mr. Zhang's coming home?
• 2. Xiao Ming went to live in her grandmother's house for seven days, but the calendar hasn't been torn. When Xiao Ming came home and tore up the calendar, he found that the sum of the dates was 42. When did Xiao Ming and his mother go home?
• 3. After Xiao Wang went home from a business trip for 7 days, he tore up the 7-day calendar at one time. Given that the sum of the 7-day dates is 63, what's the date when Xiao Wang went home?
• 4. Manager Wang went on a business trip for seven days. After he came home, he tore off the calendar of the seven days. It is known that the sum of the dates of the seven days is 63. What's the date when manager Wang went home?
• 5. Xiaoxin's father is on a business trip for seven days. When he gets home, he tears off the calendar of the seven days, and 49?
• 6. Mr. Zhang was very busy at work and didn't go home for seven days. After he went home, he tore off the calendar of the seven days. The sum of the numbers of the seven days is 49. What's the date of Mr. Zhang's coming home?
• 7. Dad saved Xiaoming a 3-year education savings (3-year interest rate is 2.7%) and he can withdraw 5045 yuan after 3 years. How many yuan did he save?
• 8. Li Ming's father went to the bank to deposit a total of ten thousand yuan for five years. It is known that the annual interest rate for five years is 5.1%. How many ten thousand yuan will he get after five years
• 9. Xiao Ming's father plans to deposit 5000 yuan in the bank (two years later). According to the above survey, how can he get the most interest One year 2.25% two years 2.79% three years 3.33% four years 3.60%
• 10. Xiao Ming's father plans to deposit 5000 yuan in the bank with an annual interest rate of 2.79% for two years. How can he get the most interest? 2.25 for one year, 2.79 for two years
• 11. The sum of the four members of Xiaojun's family is 129 years old, Xiaojun is 7 years old, and his mother is 30 years old. The sum of the ages of Xiaojun and his grandfather is 5 years older than the sum of his parents. What are the ages of his grandfather and his father?
• 12. Once, Zhang Hong, Wang Feng and Chen Xu, three good friends, went to work in a taxi together. When they set out, they discussed the fare and shared it reasonably. Zhang Hong was there Wang Feng got off at 12 kilometers, Wang Feng got off at 24 kilometers, Chen Xu got off at 36 kilometers, and paid 72 yuan. How do you think the three of them should bear the fare? Please, it's before 8:30
• 13. A, B, C three friends rent a car, and tell us to share the fare. A gets off at 1 / 3 of the whole journey, and B gets off at 2 / 3 of the journey. Finally, C gets to the destination by himself and pays 90 yuan. How much should a and B pay C?
• 14. A, B and C took a taxi, and three people shared the fare according to the distance. A got off at 1 / 3 of the whole journey, B got off at 2 / 3, and C took it all the way to the destination. It cost 90 yuan How much will each party take We need the formula!
• 15. After the spring outing of Xiao Wang, Xiao Ming and Xiao Jun, they take a taxi home from school. They agree that the taxi fee should be shared reasonably. Xiao Wang gets off at 14 places in the whole journey, Xiao Ming gets off at 23 places in the whole journey, and Xiao Jun gets off at the terminal. The total fare is 46 yuan. Please design the sharing scheme of the taxi fee for three people
• 16. Three good friends, a, B and C, rent a taxi together and share the fare, Finally, C one person sit to the end, public pay 90 yuan, please calculate, a, B how much to C Explore: one scheme is to divide the whole journey into sections and share the fare according to the head in the section. The other scheme is to share the fare according to the proportion of the distance taken by the three people in the total journey. Which scheme do you think is more reasonable, just talk about your reasons. Do you have a better scheme?
• 17. Xiaoming finds out that the journey is x (km) by taking a taxi, and Xiaoming finds out that the journey is x (km) & nbsp; the cost is the Yuan & nbsp & nbsp & nbsp & nbsp; the & nbsp & nbsp & nbsp; the & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 3.5 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 5 + 3 please use X for y
• 18. Xiao Ming is 7 kilometers away from his grandmother's home. He is going to take a taxi. It costs 6 yuan per kilometer within 2 kilometers and 1.2 yuan per kilometer over 2 kilometers. How much does Xiao Ming have to pay?
• 19. Xiaoming and Xiaoqiang each have some books. If Xiaoming gives Xiaoqiang five books, they will have the same number. If Xiaoqiang gives Xiaoming five books, how many more books will Xiaoming have than Xiaoqiang
• 20. It took Xiaoming 15 minutes and Xiaodong 20 minutes to walk from the school to the library. Xiaoming's speed is a fraction of Xiaodong's