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In the “Giving Love-Donating to the Wenchuan Earthquake Zone” event of a primary school, five classes in the sixth grade donated a total of 8,000 yuan, of which one class donated 1,500 yuan, the second class donated 200 yuan more than the first class, and the third class donated 1,600 yuan. The ratio of donations from Class 4 to Class 5 is 3:5.How much is the donation for the fourth class?
1200
5
4
6
Xiaojun is running on the East-West Avenue, if the regulations are correct to the east.He first ran 800 meters eastward, and then after another section, he was located 100 meters west of the starting point. How many meters did Xiaojun run in the second section?
900
1
3
6
Car A and Car B drove from A and B at the same time, and met after 5 hours.Then, they each continued to drive in the same direction at the same speed for 3 hours. At this time, Car A was still 135 kilometers away from Place B, and Car B was still 165 kilometers away from Place A.How many kilometers are the two places A and B apart?
775
3
3
6
There are 480 tons of grain in the east and west warehouses, and the number of grain in the east is 1.4 times that of the west. How many tons of grain are in the east?
280
3
3
6
The fruit shop shipped a total of 840 kilograms of apples and pears. The quality of apples is 3 times that of pears. How many kilograms do apples weigh?
630
3
3
6
A football field is 120m long and 90m wide. Draw it on a piece of paper. It is 16cm long. How many centimeters wide should it be drawn?
12
2
2
6
In a cylindrical container with a radius of 10 cm on the bottom surface, pour 10 cm deep water, and then put a conical plumb with a diameter of 4 cm on the bottom surface and a height of 6 cm into the water. How many centimeters does the water surface rise in the container?
0.08
5
3
6
The store shipped a total of 360 kilograms of oranges, apples, and pears. The weight ratio of oranges to apples is 5:6. The weight of pears is 1/6 of that of apples. How many kilograms of oranges are there?
150
4
3
6
The sum of the two numbers A and B is 616, and the bit of A is 0. If 0 is removed, it will be the same as B. Then what is A?
560
3
3
6
In the school's mathematics competition, a total of 126 people won awards.Among them, the ratio of the number of people who have won the first, second, and third prizes is 1:2:3.How many people won the first prize?
21
3
3
6
For a manuscript, it takes 6 hours for A to type alone, and 10 hours for B to type alone. Now after A has been typing alone for a few hours, B will finish typing again because of something. It took 7 hours, so how many hours did it take for A to type?
9/2
5
2
6
In a ratio, the two outer items are reciprocal to each other. One of the inner items is 5/13, and the other inner item is what?
13/5
1
3
6
An automobile manufacturer produced 36,400 cars in the first half of the year, which was 3,900 more than originally planned. What percentage was over-production?
12%
2
5
6
A total of 120 trees were planted in the three classes of the sixth grade of Jiaoba Center, known as the sixth grade.（1）、（2）、（3） The ratio of trees planted in the class is 1:3:2. Then (1) How many trees are planted in the class?
20
3
3
6
There is a sheep tied to a wooden stake in the grass. The length of the rope is 6 meters. How many square meters of grass can this sheep eat at most?
113.04
2
5
6
Two people A and B walked towards each other from A and B at the same time. A walked 100 meters per minute and B walked 120 meters per minute. After 12.5 minutes, the two had met and were 150 meters apart from each other.How many meters are the two places A and B apart?
2600
5
4
6
A leather shoe store has transferred 225 pairs of women's leather shoes, of which the number of pairs of men's leather shoes is equivalent to 40% of women's leather shoes. How many pairs of men's leather shoes has this leather shoe store transferred?
90
1
3
6
Dad bought a 5,000 yuan national debt with a regular term of two years. When it matures, the principal and interest can be refunded for a total of 5,873 yuan. What is the annual interest rate of this national debt?
0.0873
3
5
6
Blood in the human body accounts for about 1/13 of body weight, and 2/3 of blood is water.Xiaodong's weight is 39 kilograms. How many kilograms of water is in his blood?
2
2
3
6
There is a round goldfish pond with a diameter of 15 meters in the children's park. There are 4 circles of round railings around the goldfish pond. How many steel bars do you need to use at least?
188.4
2
4
6
There is a pile of coal in a certain factory. If you burn 0.8 tons per day, you can burn it for 30 days.If you save 0.2 tons per day, how many more days can you burn?
10
3
2
6
In the “Creating a Green Circular Economy Demonstration Unit” activity, our school intends to dig a new circular pool with a diameter of 6 meters and a depth of 12 decimeters in the biological park.How many square meters does this pool cover?
28.26
3
4
6
The area of a conference room that needs to be painted is 500 square meters, and 0.6 kg of paint is required per square meter, but there will be consumption when actually painting, so it is necessary to prepare 10% more.How many kilograms of paint should actually be prepared?
330
3
3
6
There are 8 small black, white, and yellow sticks, mixed together. At least 4 small sticks of the same color must be taken out of these small sticks to ensure that there are 4 small sticks of the same color?
10
2
2
6
There are a total of 10 fuwas of Beibei, Jingjing, Huanhuan, Yingying, and Nini. How many fuwas can you buy at least to guarantee that there must be two identical fuwas?
6
2
2
6
During the ”May 1st" period, all goods in Xiaoxiong Mall will be sold at a “50% discount”.The original price of the air conditioner is 2,800 yuan. During the ”May 1st" period, how much is the price of the air conditioner cheaper than the original?
140
2
4
6
The store buys a batch of clothes at a price of 68 yuan per piece, and the price is 96 yuan per piece.A total of 115 pieces were sold in January, excluding various expenses of 874 yuan.So how much more yuan can this store make?
2346
3
4
6
The sum of the three numbers A, B and C is 170. B is 2 times less than A. 4, and C is 3 times more than A. 6. What is B?
52
5
3
6
Yucai Primary School has 108 teachers, of which the number of female teachers is three times that of male teachers.How many male teachers are there?
27
2
3
6
A kind of sugar water, sugar and water are formulated in accordance with 1:150; there are 100 grams of existing sugar, how many grams of such sugar water can be formulated?
15100
2
5
6
The number of teeth of the front gear of a bicycle is 48, and the number of teeth of the rear gear is 24.If the diameter of the wheel is 66 cm, how many meters can you walk in a circle?
414.48
5
5
6
The price of a certain schoolbag is 120 yuan after a 20% discount. If it is sold at a 10% discount, how much yuan does it cost to buy this schoolbag?
135
2
3
6
Xiaoli and Xiaoming played a shuttlecock game. Xiaoming kicked 20 in 5/6 minutes and Xiaoli kicked 18 in 2/3 minutes. How many more kicks does Xiaoli play every minute than Xiaoming?
3
3
2
6
A kind of clothes is now sold at a 10% discount, and each piece sells for 45 yuan, so how much is the original price?
50
1
2
6
The original price of a certain leather jacket is 1,800 yuan, but it is now sold at a reduced price of 270 yuan. How much discount is the product for sale?
8.5
2
4
6
Two cars A and B travel from place A to place B at the same time. When Car A has traveled 1/3 of the whole journey, Car B has traveled exactly 60 kilometers; when Car A reaches place B, Car B has traveled 3/5 of the whole journey. How many kilometers are the two places AB apart?
300
2
3
6
The sales volume of a cigarette factory in the first half of the year is 30 million yuan. If the consumption tax is paid at 45% of the sales volume, how much consumption tax should be paid in the first half of the year?
1350
1
4
6
The height of a wine bottle is 30 cm, the diameter of the bottom surface is 8 cm, and the height of the wine in the bottle is 20 cm. After tightening the stopper, the mouth of the bottle is downward.At this time, the height of the wine is 24 cm.Q How many milliliters is the volume of the bottle?
1306.24
5
6
6
A top is 300 yuan. If the top is 2/3 less than the pants, how much is a pair of pants?
900
2
3
6
A kind of sugar water, sugar and water are formulated in accordance with 1:150; to prepare 15,100 grams of such sugar water, how many grams of water are needed?
15000
1
5
6
The number of teeth of the front gear of a bicycle is 26, and the number of teeth of the rear gear is 24.The radius of the wheel is 35 cm. How many meters can you walk in a circle?
2.198
5
4
6
There are a total of 50 students in Class 61, of which the excellence rate in mathematics in the exam is 56%. How many people are in Class 61 who are excellent in mathematics?
28
1
2
6
On a certain highway, the two cars A and B are exactly 96 kilometers apart. Now the two cars are traveling in the same direction from two different service areas at the same time. Car A travels 95 kilometers per hour and Car B travels 107 kilometers per hour.How many hours can Car B catch up with Car A?
8
2
3
6
A conical wheat pile with a diameter of 2 meters on the bottom surface and a height of 0.6 meters. It weighs about 500 kilograms per cubic meter of wheat. How many kilograms does this pile of wheat weigh?
314
5
3
6
Teacher Zhang deposited 4,500 yuan in the bank. The annual interest rate is 2.25%. After deducting 20% interest tax, how much yuan will he get back after one year?
4581
5
4
6
There are a total of 146 people in the sixth grade, of which the number of boys is more than twice that of girls. 56 people. How many boys are there?
116
4
3
6
A 3-meter-long cylindrical wood is sawed into 3 sections, and the surface area is increased by 16 square decimeters. What is the bottom area of this wood? Square decimeters?
4
2
2
6
There are 4,000 books in Hongwei Primary School and 5,000 books in Yuxin Primary School. What percentage of books in Yuxin Primary School are more than in Hongwei Primary School?
25%
2
4
6
Aunt Zhang packed a total of 75 egg yolk dumplings and meat dumplings during the Dragon Boat Festival. The ratio of egg yolk dumplings to meat dumplings is 2:3.How many meat dumplings did Aunt Zhang pack?
45
2
2
6
A butterfly flies 15.6 kilometers at 2 o'clock, and a bee flies 2.4 times faster than this butterfly.How many kilometers does this bee fly every hour?
18.72
2
4
6
Dad's salary is 6,500 yuan. After deducting the 3,500 yuan tax exemption, he needs to pay personal income tax at a 3% tax rate. What is the actual salary dad gets after paying taxes?
6410
3
4
6
Use an 8-meter-long rope to circle a tree 4 times, with 1.72 meters left.How many meters is the diameter of this tree?
0.5
3
3
6
A section of cylindrical steel, its bottom surface has a radius of 4 cm and a height of 35 cm.It is known that 1 cubic centimeter of steel weighs 7.8 grams. How heavy is this section of steel?
13715.52
4
7
6
Tiantian Mother's clothing store implements the principle of small profits and quick turnover, and generally increases the purchase price by 20% as the sales price.According to this calculation, how much should a piece of clothing with a purchase price of 220 yuan be priced?
264
2
3
6
A cube glass tank with an edge length of 3 decimeters is filled with water.Li Ming poured all the water into a rectangular glass cylinder with a length of 5 decimeters, a width of 2 decimeters, and a height of 4.5 decimeters.What is the contact area between the water and the glass cylinder at this time?
47.8
5
3
6
For a project, it takes 18 days for A to do it alone, 15 days for B to do it alone, and 6 days for the two to cooperate. For the rest, B will do it alone. How many days will it take to finish?
4
4
2
6
There are 5 identical red and yellow cones in the carton. Take out at least a few to ensure that there must be 2 cones that are all red?
3
2
1
6
For a project, A will do it alone for 30 days to complete. The project will first be done by the two teams A and B for 8 days, and the remaining team A will complete it in 10 days. Then how many days will it take for B to do this project alone?
20
3
2
6
A conical rice pile with a circumference of 12.56 meters on the bottom surface and a height of 0.8 meters.If each cubic meter weighs 0.75 tons, how many tons does this pile of rice weigh?(The result retains one decimal place)
2.5
5
4
6
There are 94 tons of wheat and 138 tons of corn in the grain depot. If 9 tons of wheat and corn are shipped out every day, the remaining corn in a few days is 3 times that of wheat?
8
5
3
6
It took Zhang Hua 30 minutes to get from home to the station by bike. For the first 18 minutes, he drove at a speed of 205m per minute. Finally, he increased the speed and drove at a speed of 256m per minute. How many meters is it from Zhang Hua's house to the station?
6762
4
4
6
For a job, it takes 8 days for A to do it alone, and 6 days for B to do it alone.A and B cooperate to complete a fraction of this work every day?
7/24
1
3
6
Mingguang Industrial Park carried out infrastructure construction. Last year, it actually invested 3.8 million yuan, which was 200,000 yuan more than the planned investment. What percentage was saved?
5%
2
3
6
On the map of 1:6000000, the distance between places A and B is measured to be 6.5cm.A truck traveled from Place A to Place B for 6.5 hours.Ask how many kilometers per hour the speed of this car is.
60
2
7
6
The billing standard for taxis in Yancheng City is: the starting price (within 3 kilometers, including 3 kilometers) is 7 yuan, and an additional price of 1.6 yuan will be added for every kilometer that exceeds 1 kilometer (if less than 1 kilometer is calculated as 1 kilometer).Please calculate, how much does it cost to drive 7 kilometers?
13.4
5
3
6
There are 10 red, yellow, and blue socks in a bag, so how many do you have to take to ensure that there are at least two pairs of socks of different colors?
13
2
2
6
The total rice production in a township last year was 1,500 tons, and this year is expected to increase production by 15% over last year.How many tons of rice is expected to be produced this year?
1725
2
4
6
The original price is 360, if it is 20% off, what is the current price?
288
1
3
6
During the Spring Festival, after the air ticket from Shenzhen to Wuhan has increased by 10%, the fare is 880 yuan. How much is the air ticket price before the Spring Festival?
800
2
3
6
An extracurricular group erected a 6-meter-high bamboo pole upright on the ground, and measured the length of the shadow to be 9.6 meters.At the same time, the shadow length of a chimney was measured to be 32 meters, so how high is the chimney?
20
2
2
6
Buses and trucks left from two stations 840 kilometers apart at the same time, and met on the way for 6 hours.It is known that buses travel 80 kilometers per hour, and trucks travel how many kilometers per hour?
60
2
3
6
The production of 240 parts is completed in 6 days by the two masters and apprentices. The master alone can complete 2/5 of all tasks in 4 days. How many parts does the apprentice produce every day?
16
4
3
6
A cylindrical bucket with a bottom surface radius of 10cm is filled with water, and a conical plumb with a bottom surface radius of 5cm is placed in the water, and the plumb is all submerged.After removing the plumb, the water surface of the barrel drops by 2cm to find the height of the plumb.
24
5
2
6
A rectangular glass fish tank, 50 cm long, 40 cm wide and 30 cm high.How many square centimeters of glass is needed to make this fish tank?
7400
5
4
6
The outer diameter of a bicycle tire is 70 cm. If it turns 120 times per minute, how many kilometers will it travel in 1 hour?(The number is reserved as an integer)
16
4
3
6
There are 3 people in a certain class who ask for leave one day, and the attendance rate is 94%. One of the 3 people who ask for leave in the afternoon arrives at school to ask for the attendance rate in the afternoon.
0.96
3
3
6
A and B walked along the edge of a circular playground, starting from the same place and walking with their backs to each other. A walked 40 meters per minute.B walks 38.5 meters per minute and meets in 4 minutes. What is the diameter of this playground?
100
3
3
6
The ratio of a mobile phone signal transmitting and receiving tower buried in the ground to the exposed part of the ground is 3:18, and the buried part is 4 meters. So how many meters is the total length of this tower?
28
2
2
6
One tractor cultivates 2/7 hectares of arable land per hour, and how many hectares of arable land are cultivated by three tractors in 14 hours?
12
2
2
6
Dig a canal, and on a map with a scale of 1:300, measure the length of the canal by 40 centimeters.How many meters is the actual length of this canal?
120
2
3
6
In a safari park, there are a total of 16 Siberian tigers and white tigers. The number of Siberian tigers is 7 times that of white tigers. How many white tigers are there?
2
2
2
6
The price of a set of tables and chairs is 400 yuan, of which the price of the chairs is 60% of the table.What is the unit price of the chair?
150
3
3
6
According to statistics from the Ministry of Information Industry, so far, there are 360 million telephone users in our country, of which mobile phone users are twice as many as fixed telephone users.How many billion mobile phone users are there in our country?
2.4
3
2
6
For a project, it takes 20 days for A to do it alone, and 15 days for B to do it alone. After 5 days for A to do it first, how many days can the remaining A and B be completed together?
45/7
4
3
6
My mother and Aunt Li went shopping in the supermarket together. My mother bought 5 kilograms of rice and 4 kilograms of flour and paid 29.2 yuan. Aunt Li also bought the same 4 kilograms of rice and 5 kilograms of flour and paid 28.4 yuan. How much is each kilogram of rice?
3.6
5
3
6
There are 88 students in Classes A and B. Class A has 8 more students than Class B. How many students are there in Class A?
48
3
2
6
In order to encourage water conservation, a water company adopts a monthly segmented calculation method to collect water bills. For those within 12 tons, it is 2.5 yuan per ton, and for those over 12 tons, it is 3.8 yuan per ton. Grandma Li's water consumption last month was 19 tons. How much is the water bill payable?
56.6
4
3
6
In a cylindrical water storage tank with a radius of 10 meters, put all a rectangular iron block with a length of 5 meters and a width of 4 meters into the water, and the water surface in the bucket rises by 0.5 meters.Ask how many meters is the height of this iron block.
7.85
5
3
6
There is a cylindrical fountain in the center of the square, with a diameter of 20 meters and a depth of 0.8 meters on the bottom surface.If a layer of cement is applied to the side and bottom of the pool, how many square meters is the area of the cement surface?(The whole square meter is reserved for the number)
365
5
3
6
Sixth-grade students participated in tree planting. Boys planted 160 trees, and girls planted 5 more trees than boys 3/4. How many trees do girls plant?
125
2
3
6
A blouse in a shopping mall is sold for 400 yuan after 20% off. If it is sold at 30% off, how much can it be sold for?
350
2
3
6
Dad bought a family car priced at 120,000 yuan and paid a 10% vehicle purchase tax in accordance with regulations.How much did Dad spend on this car in total?
13.2
2
3
6
Hua's mother deposited 1,000 yuan in the bank on a regular basis for three years.If the annual interest rate is calculated at 5.22%, how much yuan can I get back at maturity?
1156.6
4
5
6
Make a wooden cover for a water tank with a diameter of 0.75 meters. The diameter of the wooden cover is 5 cm larger than the diameter of the tank mouth. How many square meters is the area of this wooden cover?
0.5024
5
5
6
The exchange rate between the US dollar and the RENMINBI is 7.19:1 (1 US dollar can be exchanged for RMB 7.19) Now there is 140 US dollars. How much can it be exchanged for RMB?
1006.6
1
5
6
There are 6 monkeys in Monkey Mountain divided into peaches, and there is always 1 monkey divided into at least 5 peaches.How many peaches are there at least in this pile?
25
2
2
6
A glass of about 250 ml of fresh milk contains about 3/10 grams of calcium. Xiaohua drinks 2 cups of such milk every day. How many grams of calcium can he consume by drinking milk throughout September?
18
3
3
6
Each car emits an average of 160 grams of carbon dioxide per kilometer.In response to the call of the municipal government for “green travel”, Teacher Zhao changed his commuting method from self-driving to cycling.It is known that Teacher Zhao's home is 20 kilometers away from the school.How many grams of carbon dioxide can Teacher Zhao reduce every day?
6400
2
4
6
A box of bananas weighs 1/20 ton, how many tons does 15 boxes of such bananas weigh?
3/4
1
3
6
The school shipped 480 books and distributed them to 8 classes. How many books are each class divided into?
60
1
3