2. Fujian Xinxin Electronics Co., Ltd. applied for two kinds of loans, A and B, with an amount of 680,000 yuan and an annual interest of 84,200 yuan. The annual interest rate of loan A is 12%, and that of loan B is 13%. How much are these two loans?
3. A clothing factory wants to produce a batch of certain kinds of students' clothes. It is known that a 3-meter-long cloth can be used to make two coats or three pairs of trousers, and one coat and one pair of trousers are a set. It is planned to use this 600-meter-long fabric to produce coats and trousers. How much cloth does it take to produce them? * * * How many sets can you produce?
4. A shopping mall sells an electrical appliance at a fixed price, and each one can make a profit in 48 yuan. Selling six electrical appliances at a 10% discount on the fixed price is equal to the profit of selling nine electrical appliances in 30 yuan. What is the purchase price and fixed price of each electrical appliance?
5. A square table consists of 1 desktop and 4 legs. If 1m3 wood can be used as 50 desktops or 300 legs of a square table, how many cubic meters of wood can be used as desktops and legs to make a square table with the existing 10m3 wood? How many square tables can you make?
6. At 8: 00 am, Party A and Party B walk to each other from A and B at the same time, with a distance of 36km at 10 in the morning, and continue to move forward, with a distance of 36km at 12. As we all know, Party A walks 2 kilometers more than Party B every hour, so we can find the distance between A and B. 。
7. A middle school organizes students to have a spring outing. It was originally planned to rent a number of 45-seat buses, but 15 people had no seats. If you rent the same number of 60 buses, there will be one more bus, and the rest of the buses are just full. It is understood that the daily rent of 45 buses is 220 yuan, and the daily rent of 60 buses is 300 yuan.
(1) How many students are there in the spring outing? How many 45-seat buses were originally planned to rent?
(2) If you rent a similar car and want everyone to have a seat, how to rent a car is more cost-effective?
8. In the activity that Class A and Class B of Grade 9 in Guangming Middle School donated money for Project Hope, the total donations of the two classes were the same, both above 300 yuan and below 400 yuan. It is known that one person in Class A donated to 6 yuan and the rest donated to 9 yuan; One person in Class B donated 13 yuan, and the rest donated to 8 yuan. What is the total number of students in Class A and Class B?
9. Xiaoyue Automobile Sales Company went to an automobile factory to buy two kinds of cars, A and B. With 3 million yuan, it can buy 10a car and 15 B car, and with 3 million yuan, it can also buy 8 A car and 18 B car.
(1) How much are the A and B cars?
(2) If the car sales company can get 8,000 yuan for selling 1a cars and 5,000 yuan for selling 1b cars, and the car sales company is prepared to buy 30 cars A and B for no more than 4 million yuan, and the total profit after all these two cars are sold is not less than 204,000 yuan, how many car purchase schemes are there? In these car purchase schemes, how many million yuan did the car sales company earn after selling all these cars?
10. The owner of Shuangrong Clothing Store went to the factory to buy two kinds of clothes, A and B. If he bought 9 pieces of A clothes and 10 pieces of B clothes, he would have to 18 10 yuan. If you buy 12 pieces of A-type clothes and 8 pieces of B-type clothes, you need 1880 yuan.
(1) How much is each piece of clothing A and B?
(2) If you sell 1 piece of type A clothing, you can make a profit 18 yuan, and if you sell 1 piece of type B clothing, you can make a profit in 30 yuan. According to the market demand, the clothing store owner decided that the number of type A clothing should be 4 more than that of type B clothing, and the maximum number of type A clothing can be 28. When all the clothes are sold out, the total profit can be no less than 699 yuan. How to purchase goods?
1 1. In the maintenance project of Wuhan Jianghan First Bridge, it is planned that two engineering teams, A and B, will jointly complete a project. From the data of the two engineering teams, we can know that if the two engineering teams work together for 24 days, it will just be completed; If two teams work together 18 days, then team a works alone 10 days, which just ends. Excuse me:
(1) How many days does it take for Team A and Team B to complete the project alone?
(2) It is known that the daily construction cost of Team A is 6000 yuan, and that of Team B is 3500 yuan. If the total cost of this project does not exceed 220 thousand, how many days will Team B have to work at least?
12. An enterprise purchased Phyllostachys pubescens in Zhuhai, southern Sichuan for rough processing, and it can process 8 tons per ton, with a profit of 800 yuan. If Phyllostachys pubescens is finely processed, it can be processed 1 ton every day, and the profit per ton is 4000 yuan. Due to the limitation of conditions, only one kind of bamboo can be processed every day, and it is required to sell all the bamboo within one month (30 days). So, the factory director called the staff to a meeting. B said: 30 days to complete the processing, unprocessed bamboo directly sold; C said: 30 days, you can rough it for a few days, and then sell it after a few days. Who said that the plan was adopted by the director for profit?