The annual interest rate of the national debt is 4%. If you subscribe to the five-year national debt of 5000 yuan, how much interest can you get when it matures

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• 1. Mr. Chen bought 5000 yuan of state-owned bonds with a fixed term of three years and an annual interest rate of 2.89%. When they mature, he can get a total amount of principal and interest______ Yuan
• 2. Auntie Wang bought a five-year bond of 6000 yuan with an annual interest rate of 6.34%. How much money can she get when it matures? Thank you. It's urgent to do it!
• 3. In October 2008, Mr. Li bought a 20000 yuan five-year certificate roll bond with an annual interest rate of 5.53%. When it matures, how much is Uncle Wang's principal and interest
• 4. The electric cooker A is used in the following household appliances A rice cooker B washing machine C electric kettle D electric blanket Why is the answer D Where is the electric motor in the electric blanket?
• 5. A shopping mall sold 24 induction cookers and electric cookers in a day. It is known that the number of induction cookers and electric cookers sold is 5:3. How many electric cookers are sold less than induction cookers
• 6. The following electrical appliances normally work through the current of about 5A is a home fan B notebook C table lamp D electric cooker
• 7. How much is the current of household table lamp
• 8. Symbols of TV, fan, refrigerator in circuit diagram Are they all M's Oh, wrong number. It's X
• 9. Life experience tells us that the connection between the socket, lamp, TV and refrigerator in the home circuit is simple A. Light and socket should be connected in series, color TV and refrigerator should be connected in parallel C. It must be in parallel D. It can be in series or in parallel;
• 10. The following household appliances do not need to use a rheostat is a LCD TV B adjustable speed fan C energy saving lamp D adjustable temperature electric iron
• 11. The annual interest rate of a three-year treasury bond is 3%. Mr. Li bought a treasury bond of 5000 yuan, which can earn interest when it matures_____ Yuan (exempt from interest tax)
• 12. Master Liu processes 140 machine parts in 3 hours, and master Li processes 230 machine parts in 5 hours. Whose work efficiency is high?
• 13. It takes Master Wang 4 hours and master Li 6 hours to process a batch of machine parts? Don't use XY, list the formula
• 14. Mr. Li typed 96 words in three fourths of a minute. At this speed, he could type () words in one minute, and it took a long time to type a word（ Mr. Li typed 96 words in three fourths of a minute. At this speed, he could type () words in one minute, and it took () minutes to type one word
• 15. Mr. Li typed 200 words in 4 minutes. At this speed, how long does it take for him to type an article of 1800 words?
• 16. Mr. Li used the computer to input an article. After 3 hours, he entered 1 / 3 of this article. At this speed, Mr. Li worked 8 hours and could input this article A few parts of the article
• 17. Mr. Li, it took 2 / 3 hours to input a manuscript by computer, and it took 1 / 4 of this article. At this speed, how many hours does it take for Mr. Li to input this article?
• 18. What reason is leakage switch often trip
• 19. The 200W light bulb runs 0.1 kwh in 23 minutes. Please help me to calculate the deviation of this meter How to calculate it accurately? Write it clearly With this meter, for example, if I use 100 kilowatts, how many kilowatts do I actually use? Theoretically, it takes half an hour to walk 0.1 kwh, but now it only takes 23 minutes. I calculate by time; 30-23 / 30 = 0.233333. Is that right? The power difference of 100 degrees is 23.333 degrees,
• 20. 1 kilowatt hour of electric energy can be used () hours for 220 V, 800 w vacuum cleaners, and () hours for 220 V, 200 W washing machines 1 kilowatt hour of electric energy can be used () hours for 220 V, 800 w vacuum cleaners, and () hours for 220 V, 200 W washing machines