Solution: 800+(1920-800) ÷ (1-20%)
=800+ 1400
= 2200 (yuan)
Answer: Li Ming's salary should be 2200 yuan before tax.
Xiaoming has a deposit of 20,000 yuan at home. If he deposits it in the bank for a fixed period of three years, the annual interest rate is 2.7%, and then he pays 20% interest tax. How much interest will he get when he matures?
Solution: 20000× 2.7 %× 3× (1-20%)
= 1296 (yuan)
A: The interest earned after maturity is 1296 yuan.
Zhang Ping has money from 500 yuan and plans to deposit it in the bank for two years. There are two deposit methods. One is to save it for two years, with an annual interest rate of 2.43%. One is to save it for one year with an annual interest rate of 2.25%. When the first year expires, take out the principal and after-tax interest and deposit it for another year. Which method can I choose to get more after-tax interest?
Solution: After-tax interest earned within two years:
500× 2.43 %× 2× (1-20%) =19.44 (yuan)
After-tax interest earned by saving for one year:
500× 2.25 %× (1-20%) = 9 (yuan)
(500+9) × 2.25 %× (1-20%) = 9.16 (yuan)
9+9.16 =18.16 (yuan)
19. 14> 18. 16
Answer: After-tax interest earned by saving for two years is more.
The sales of a paper mill in April is 30 million yuan. If the consumption tax is paid according to 45% of sales, how much consumption tax should be paid in April?
Solution: 3000× 45% = 1350 (ten thousand yuan)
Answer: The consumption tax in April should be 6.5438+0.35 million yuan.
5. The turnover of a hotel in June 5438+ 10 is 500,000 yuan. If the business tax is paid at 5% of the turnover, how much business tax should be paid in June 5438+10?
Solution: 50× 5% = 2.5 (ten thousand yuan)
A: The business tax payable in June is 25,000 yuan.
6. Teacher Liu's monthly salary 1500 yuan. According to the individual income tax law, 800 yuan is deducted from the monthly income balance, and individual income tax is paid at the rate of 5%. How much personal income tax should Teacher Liu pay each month?
Solution: (1500-800) × 5% = 35 (yuan)
A: Teacher Liu pays 35 yuan's personal income tax every month.
7. Singer and dancer Wang Hua took part in the performance and earned 3000 yuan. According to the individual income tax law, 20% of the balance after deducting 800 yuan from the performance income is subject to individual income tax. What is Wang Hua's after-tax income after the performance?
Solution: (3000-800) × 20% = 440 (yuan)
A: After this performance, Wang Hua's after-tax income is 440 yuan.
8. The annual interest rate of one-year time deposit is 2.25%. After one year, the deposit of 10000 yuan will pay interest tax at 20%. How much interest tax should I pay?
Solution: 10000× 2.25 %× 20% = 45 (yuan)
A: 45 yuan has to pay interest tax.
9. The annual interest rate of three-year time deposit is 2.70%. Li Yan deposited 4000 yuan in the bank and paid 20% interest tax when withdrawing money three years later. How much interest tax should Li Yan pay?
Solution: 4000× 2.70 %× 3× 20% = 64.8 yuan.
A: Li Yan should pay interest tax of 64.8 yuan.
10. Uncle Li deposited RMB 65,438+10,000 in the bank this year, with an annual interest rate of 2.70%. The deposit will be fixed for three years and will expire after three years. After deducting 20% interest tax, can he buy a color TV with 6000 yuan interest?
Solution: 10× 2.70 %× 3 = 0.8 1 (ten thousand yuan)
0.8/kloc-0 /× (1-20%) = 0.648 (ten thousand yuan)
06.48 million yuan = 6.480 yuan
6480>6000
Answer: You can buy a 6000 yuan color TV with the interest earned.
1 1. For the sake of drinking water hygiene, the school is going to issue a special water cup to each student. Each cup is priced at 2 yuan. Which store do you think is cheaper to buy? How much cheaper is each cup?
Solution: store c, the method is not unique.
12. There are 36 students reading books in the school reading room, of which girls are the majority. Later, several girls came to read books. At this time, the number of girls accounted for 50% of all readers. How many girls came to read later?
Solution: 20 ÷ (1-50%) = 20 ÷ 50% = 40 (name)
40-36 = 4 (Name)
A: Later, m-girls came to read a book.
13. Personal income such as monthly wages and salaries of citizens does not exceed that of 800 yuan, so there is no need to pay taxes. The portion exceeding 800 yuan is the monthly taxable income, which is calculated progressively according to the following table:
Monthly taxable income
tax rate
No more than 500 yuan.
500 yuan above to 2000 yuan.
More than 2000 yuan to 5000 yuan.
More than 5000 yuan
A person 1 month should pay personal income tax of 26.78, so the total amount of his salary, salary or other income in that month is between:
(1) 800 ~ 900 yuan (2) 900 ~ 1200 yuan.
(3) 1200 ~ 1500 yuan (4) 1500 ~ 2000 yuan.
(5) between 2000 and 5000 yuan (6) more than 5000 yuan.
Solution: 500× 5% = 25 (yuan)
26.78-25 = 1.78 (yuan)
1.78÷10% =17.8 (yuan)
800+500+17.8 =1317.8 yuan.
A: His total salary, salary or other income in that month is between 1, 200 ~ 1, and 500 yuan.
14. This barrel contains 80 kilograms of oil, of which 60% is used up. How many kilograms did you use?
Solution: 80× 60% = 80× 0.6 = 48 (kg)
A: It took 48 kilograms.
15. The barrel was filled with some oil, and 60% of it was used, which was exactly 48kg. How many kilograms of oil was originally contained in the barrel?
Solution: 48 ÷ 60% = 48 ÷ 0.6 = 80 (kg)
A: It turns out that there are 80 kilograms of oil in the barrel.
16. A rope is 48 meters long and 75% of the total length is cut off. How many meters are left?
Solution: 48× (1-75%) = 48× 0.25 =12 (m)
A: There is12m left.
17. Cut off 75% of the total length of a rope, leaving12m. How long was the original rope?
Solution:12 ÷ (1-75%) =12 ÷ 0.25 = 48 (m)
A: It turns out that the rope is 48 meters long.
18. The workshop produced 1280 parts last month, which was 15% more than last month. How many parts have been produced this month?
Solution:1280× (1+15%) =1280×1.15 =1472 (pieces)
1472 parts were produced this month.
19. The workshop produced 1472 parts this month, which was 15% more than last month. How many parts were produced last month?
Solution:1472 ÷ (1+15%) =1472 ÷1.15 =1280 (pieces)
A: 1280 parts were produced last month.
20. Xiaoli's height 126 cm is exactly 70% of her father's height. What is her father's height in centimeters?
Solution:126 ÷ 70% =126 ÷ 0.7 =180 (cm)
A: My father is 180 cm tall.
2 1. Uncle Li used to weigh 80 kg, but he lost 5% after insisting on physical exercise. How much does Uncle Li weigh now?
Solution: 80× (1-5%) = 80× 0.95 = 76 (kg)
Now Uncle Li weighs 76 kilograms.
22. Xiaodong reads books. On the first day, he read 20% of the book, and the next day, he read 25% of the book. In two days, he read 108. How many pages are there in this book?
Solution:108 ÷ (20%+25%) =108 ÷ 0.45 = 240 (page)
A: This book has 76 pages.
23. This year, 4,200 households in Honglin residential area have televisions, an increase of 20% over last year. How many families had telephones last year?
Solution: 4200 ÷ (1+20%) = 4200 ÷1.2 = 3500 (households)
A: Last year, 3,500 households had telephones.
24. The original cost of a product in a factory is 96 yuan. After technological innovation, the cost of each product has been reduced to 84 yuan, and the cost of each product has been reduced by a few percent?
Solution: (96-84) ÷ 96 = 12.5%
A: The unit cost has been reduced by 12.5%.
25. The recorder factory planned to produce 3,600 recorders in the third quarter, but actually produced 4,500. What percentage did the actual output exceed the plan?
Solution: (4500-3600) ÷ 3600 = 25%
The actual output is 25% more than planned.
26. As a result of strengthening enterprise management, the number of workers in each class has been reduced from 800 to 650. Now the number of workers in each class has decreased by several percent.
Solution: (800-650) ÷ 800 = 18.75%
A: Now the class size is decreasing 18.75%.
27. The original price of a kind of clothing in 85 yuan has dropped to 80 yuan, by what percentage?
Solution: (85-80) ÷ 85 = 5.9%
A: It dropped by 5.9%.
28. The turnover of Xiangqun Chain Store 10 was 345,000 yuan, an increase of 45,000 yuan over September. What percentage is the turnover in October higher than that in September?
Solution: 4.5 ÷ (34.5-4.5) = 15%
A: 10, the turnover in September increased 15%.
I'm very sorry, because the knowledge is narrow, only 28, which can't meet your needs. I'm really sorry.