Primary school application problems: comprehensive problems

Primary school application problems: comprehensive problems

Lead: The most difficult question for you is not necessarily the last one. Confidence comes from strength, and strength comes from diligence. The following is my information on sorting out the application problems in primary schools. Welcome to read the reference.

1, supply and marketing building stationery cabinet, all goods are sold at 15% discount, one badminton racket, the original price of each pair is 20 yuan,

Please fill in the appropriate questions before answering the questions.

2. In 2000, the price of pecans was 32 yuan per kilogram, but last year, how much was the price of pecans per kilogram? (Fill in the conditions first to make it a fraction or percentage application problem, and then solve it)

3. Please select two or three conditions from the following conditions (tick in the brackets in front), or you can add another condition yourself, ask questions, turn it into a three-step calculation application problem, and solve it in parallel.

() Each rice cooker 1 17 yuan.

() The price of hair dryer is higher than that of rice cooker (13), 3.5 yuan.

The microwave oven is 78.5 yuan more expensive than the rice cooker.

The prices of hair dryers and water dispensers are comparable to those of rice cookers.

Question:?

Last year, the agricultural income was 300,000. This year's income is higher than last year's 15%. How much has it increased?

The price of a coat is 480 yuan, which is 20% lower than the original price. How much is the price reduction?

6. The number of flower cats is 20 more than that of white cats, just more than that of white cats 10%. How many cats are there?

7. The militarists collected 500 kilograms less grapes last year than this year, and this year's grape harvest increased by 8% compared with last year. How many kilograms of grapes have they collected this year?

8. For a batch of goods, the number of bags transported is 60 more than the number of remaining bags, and the number of remaining bags is 20% less than that transported. How many bags are there in this shipment?

9. A batch of wood can make 20 tables and 30 chairs. How many sets of such tables and chairs can this batch of wood make?

10. There is a batch of cloth. If you only make tops, you can make 10 pieces. If you only make pants, you can make 15 pieces. How many sets of such clothes can this cloth make?

1 1, 12 yuan is enough to buy 24 ballpoint pens or 40 pencils. Now you want to buy the same number of two pens, and you have to run out of money. How many pens can you buy each? (Answer in two ways)

12, a part, which used to take 56 hours to make, now takes 45 hours to make. How much has the work efficiency been improved?

13.in 2000, the agricultural income of our city was150,000 yuan, an increase of 5 million yuan over 2004. What was the agricultural income of our city in 2004?

14. The bus was just full when it left the starting station. At the lakeside station, 25% of the passengers got off and 2 1 person got on. There are no seats for nine people at this time. How many passengers are there in the car now?

15, Yucai School opened the reading room one day. At first, everyone had seats, which were just full. After the students left 18, 2 1 people came in. At this time, there are not enough seats. There are 12 students sharing a seat for every two. How many seats are there in the reading room?

16, two cars, A and B, respectively, set off at the same time, and the two cars met at a distance of 30 kilometers from the midpoint. It is understood that the whole journey takes 10 hour for Party A and 15 hour for Party B.. What is the distance between a and b?

17, a bamboo pole, 45 of the total length is measured from one end as a mark, and 34 of the total length is measured from the other end as a mark B. It is known that the distance between' AB' is 60 cm. How long is this bamboo pole?

18. For bamboo poles less than 6m, 3m is measured from one end as mark A, and 3m is measured from the other end as mark B. The length of AB is exactly 20% of the total length. How long is this bamboo pole?

19, two cars, A and B, leave from A and B at the same time respectively. After an eight-hour meeting, it was learned that the whole journey of car A took 15 hours, while car B ran 2 1 km per hour. What is the distance between AB and b?

20. Two cars, A and B, start from A and B at the same time and drive in opposite directions. After six hours of meeting, I learned that the second car travels 12 1 per hour, the first car travels 60 kilometers per hour, and how many kilometers does the second car travel per hour?

2 1. Buses and trucks run in opposite directions from the midpoint of two towns. Three hours later, the bus arrived in the town, and the truck was 30 kilometers away from the town. As we all know, the speed ratio of trucks and buses is 3: 4. How many kilometers are the two towns apart?

22. In the morning, Limin individual clothing store sold two sets of fashions, both of which were sold by 480 yuan. One set lost 20% and the other made 20%. After selling these two sets of clothes, how much did the store earn or lose?

23. The number of people in Workshop A and Workshop B is 7: 8. If Workshop B transfers 16 people to Workshop A, the two workshops will have the same number of people. How many people are there in Workshop A and Workshop B respectively?

24. Yuhuan Garment Factory, the ratio of people in Workshop A to Workshop B is 5: 3. In May, in order to grab a batch of masks, 120 people were transferred from Workshop A to produce masks. At this time, there are more people in workshop B than in workshop A 15. How many people are there in workshop A?

Please draw a square with a side length of 3 cm, and draw the largest circle in the square. Ask two questions and list the corresponding formulas according to the picture you draw. (No calculation required)

26. Find the perimeter and area of the graph.

27. Make a largest round table with five boards, with a length of 1.2m and a width of 0.3m (1) Wrap aluminum strips around the round table, nail a copper nail every 20cm, and at least several copper nails? (π takes 3)(2) Match this round table with a piece of glass the same size as the desktop. How many square meters does this glass need (π takes 3. 14)?

28. It is known that the area of a circle is equal to the area of a rectangle (as shown below), and the circumference of the circle is 6.28 cm. Find the length of a rectangle.

29. There is a 62.8-meter-long rope to enclose a piece of land as large as possible. What do you think it will be? What do you think it will be? What is the area?

30. At the Forest Games, red and black ants will have a competition. On the runway drawn by the monkey judge, the red ant chose the big semicircle of the outer ring, and the black ant chose the four small semicircles of the inner ring. The red ant thinks: I must win. Black ants must be much slower when they circle on a small semicircle. Excuse me: If two ants have the same speed, what will be the result of the competition?

3 1, as shown in the figure, the square is known to have an area of 8 square centimeters. Draw a circle with a vertex of the square as the center and one side of the square as the radius. What is the area of this circle?

32. Tie four logs with a rope, all of which are 20cm in diameter, to ensure that they are tied firmly. How many meters of rope does it take to tie them up?

33. The existing disinfectant containing 60% medicine is 2kg, which needs to be disinfected with clean water to make a potion containing 0.5% medicine. How many kilograms of clean water do you need?

34. I sold a coat to 480 yuan and earned 20%. What's the purchase price of this coat?

35. The price for vendors to buy fresh Phyllostachys praecox shoots from bamboo farmers is 500g 4.5 yuan. The repackaging of bamboo shoots will result in a loss of 10%. What is the price of repackaged bamboo shoots per 500g?

36, trendy clothing stores, according to the purchase price of a suit increased by 30% as the retail price, each set of pricing in 780 yuan, during the New Year's Day, profit promotion, and decided to sell at a 15% discount on the pricing. As a result, 12 sets were sold in one day, so how much can this brand of suit earn in one day?

37. The fruit company purchased 52,000 kilograms of oranges, with the purchase price of 0.98 yuan per kilogram, the freight 1.84 yuan and the estimated loss 1%. If you want to make a profit of 17% after all the purchases are sold, what is the retail price of oranges per kilogram?

38. A fresh bamboo shoot dealer bought fresh bamboo shoots somewhere in Lin 'an. The purchase price is 6.30 yuan per kilogram, and the loss during packaging is 10%. The freight from Lin 'an to Shanghai is 0.5 yuan per kilogram. If he wants to make a profit of 20%, what should the selling price be set at per kilogram?

39. Star Fruit Wholesale Market bought 1 ton of grapes. The water content of 1 ton grape is 98% in X- Xinjiang and 97.5% in Lin 'an. How much did the grapes lose during transportation?

40. There are 108 students exercising in the playground, including 29 girls. Then some girls came. At this time, the number of girls accounted for 3 10. Then some girls came.

4 1, the two brothers and sisters * * * saved 3 15 yuan, and the money saved by the elder sister accounted for 47% of their total deposits. In August, after my sister made two consecutive withdrawals because of something, her deposit only accounted for 5 14 of their total deposit. At this time, what is the total savings of the two brothers and sisters?

42. The price of Mickey Toothpaste per box is 15 yuan, but the sales volume is not large. In order to promote sales, shops advertise and sell at reduced prices. Later, sales tripled, but revenue increased by 35%. How much has a box of toothpaste been reduced?

43. A bus and a truck were driving in opposite directions from AB at the same time, and they met six hours later. After the encounter, it took another four hours for the bus to arrive at B. At this time, how many hours does it take for the truck to arrive at A?

44. Wang Qiang runs up the hill at a speed of 4 meters per second. After reaching the top of the mountain, immediately go down the mountain at the speed of 6 meters per second along the original road and return to the starting point. What is the average speed of going up and down the mountain in Wang Qiang?

45. Uncle Zhangfan is competing to work in the Property Management Office with a monthly salary of 1600 yuan. According to the regulations, personal income tax will be levied at the rate of 5% for the part after deducting 1.200 yuan. What is his actual monthly income? ;