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There are two kinds of corn, A and B. How many kilograms per mu will each produce this year?

Two kinds of corn, A and B, how many kilograms per mu will each produce this year? In response to the call of "holding the rice bowl of the Chinese people firmly in their own hands" to ensure food security, optimize varieties and increase production. , an agricultural science and technology group conducted a trial planting of two corn varieties A and B...

1. (2020 Eight Shang·Huangdao Final) In response to "Keep the Chinese people's rice bowl firmly in hand" In order to ensure food security, optimize varieties and increase yields, an agricultural science and technology group conducted a comparative study on the experimental planting of two corn varieties A and B. This year, the two varieties A and B...

21st Century Education Network

A certain agricultural science institute conducted a comparative test on two types of corn, A and B, at 8 test sites. The yield per mu of corn in each pilot project is as follows: (unit: kg)

A certain agricultural science institute conducted a comparative test on two types of corn, A and B, at 8 experimental points. The yield per mu is as follows (unit: kilogram): A: 450, 460, 450, 430, 450, 460, 440, 460 B: 440, 470, 460, 440, 430, 450, 470,...

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2013 Jiangxi Provincial Civil Service Examination Quantity Relationship Practice Questions 20_Jiangxi Civil Servant Examination Network

2. The sugar used in the store to purchase two different kinds of sugar, A and B The amounts of money are equal. It is known that sugar A is 6 yuan per kilogram and sugar B is 4 yuan per kilogram. If these two kinds of sugar are mixed together to form assorted sugar, then how much is the cost per kilogram of this assorted sugar? A.3.5; B.4.2; C.4.8; D.5; 3. A certain...

Jiangxi Civil Service Examination Network

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It is known that two kinds of food A and B weigh 100 kilograms, and Among the options, only A+D=25+75=100 kilograms, so the BC option can be eliminated directly.

So whether to choose A or D, according to the meaning of the question "A reduces the price by 20%, B increases the price by 20%", no matter the price decreases or the price increases, it is 20%, but the final total value is higher than...

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Two kinds of food A and B*** 100 kilograms , now the price of food A is reduced by 20%, and the price of food B is increased by 20%. After adjustment, the selling price of both food A and B is 9.6 yuan per kilogram, and the total value is 140 yuan less than the original value. How many kilograms of food A are there? A. 25 kilograms of B .45 kg C. 65 kg D. 75 kg Correct...

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From "Now the price of food A is reduced by 20%, and the price of food B is increased by 20%. After adjustment, the selling price of both food A and B is per kilogram. 9.6 Yuan" we can know that A's original price*(1-20%)=9.6, then A's original price=12. Similarly, B's original price*(1+20%)=9.6, then B's original price=8 12*x+8*(100-x )=96140 D...

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Someone buys two kinds of fruit A and B. Fruit A is better than fruit B. I bought 3 kilograms more and spent 44 yuan. It is known that fruit A costs 3 yuan per kilogram and fruit B costs 4 yuan per kilogram. Ask this person how many kilograms of fruit A and B he bought? Answer analysis and solution: Suppose this person buys type A...

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Career editing skills and guessing skills to help you solve quantity relationship questions_Yixian.com< /p>

In the recruitment examination for public institutions, answers to the mathematical operation questions on the line test can be quickly obtained through some simple calculation methods, such as integer divisibility properties, proportion method, special value method, mantissa method, etc., but there is another quick method The way to solve the problem is to use the correlation of the options to get the answer. Many...

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A village grows a hectare of corn of type A and b hectares of corn of type B, with a total output of x kilograms; the planting area of ??rice is gold coin corn cultivation The area is 2b hectares less, and the total yield of rice is y kilograms less than twice the yield of corn...

The yield of corn per unit area is: x/(a+b)=x(a – b) /[(a+b)(a – b)]=(a – b)x/(a2 – b2) (kg/hectare); the yield of rice per unit area is: (2x – y)/(a – b) =(2x – y)(a+b)/[(a – b)(a+b)]=(2x – y)(a+b)/...

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A person buys two kinds of fruit A and B. Fruit A buys 3 more fruits than fruit B. Kilogram, *** spent 44 yuan. It is known that fruit A costs 3 yuan per kilogram and fruit B costs 4 yuan per kilogram. Ask this person how many kilograms of fruit A and B he bought? Answer analysis solution solution: Suppose this person bought a type...

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Grade 6 Store Purchases A and B The cost ratio of two different fruit candies is 2:1.

It is known that type A sugar costs 24 yuan per kilogram and type B sugar costs 8 yuan per kilogram. If the two sugars are mixed together to form assorted sugar, how much does assorted sugar cost per kilogram?

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The range of B corn is 470-430=40 kilogram. Therefore, type A corn is more stable. Variance can also be used to compare which corn is stable. sA2=100, sB2=200. s A 2 < s B 2, so the yield of corn A is relatively stable.

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There are two bags of corn. The mass of bag A is 1.8 times that of bag B. If you put 80 kilograms of corn from bag A into bag B, the two bags will have the same amount. It turns out_360 Q&A

If you put 80 kilograms of corn from bag A into bag B, the two bags will have the same amount. , how many kilograms each of the two bags of corn originally weighed. Write the equivalent relationship first, and then use equations to solve it. (1.8 times bag B - 80 kg) - (bag B + 80 kg) = 0 Solution: Suppose bag B of corn has x kilograms. 1.8x-80-(x-80)=00.8x...

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There are two pieces of land, the first piece is m acres, and corn is harvested a kilogram, the second n acres, harvest b kilograms of corn, then the two corn fields produce an average of corn per mu () Baidu knows

Answer: 4

Choose A

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Parent Help

3. There are two kinds of sugar A and B with the same weight in the store. Sugar A costs 10 yuan per kilogram, and sugar B costs 10 yuan per kilogram. Kilogram, in order to save trouble, the salesperson mixed the two kinds of sugar together and sold them for 10 yuan per kilogram. When they were sold out, they found that the price was 60 yuan less than if they had been sold separately. How many kilograms of each of the two types of sugar A and B were originally in the store? Hope...

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Two cotton fields A and B have an average yield of 185 kilograms per mu. Cotton field A is 5 acres and the yield per mu is 203 kilograms. Cotton field B has a yield of 170 kilograms per mu. , how many acres are there in B’s cotton field?

Jiang Zhiyao assumes that the average yield of field B is Equation 185 (5+x) = 203*5+170*x Solve the equation and get x=6, that is, field B has 6 acres

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Two bags of corn*** weigh 182 kilograms. If 1/8 is taken from bag A and put into bag B, the weights of the two bags are equal. How many kilograms do the two bags of corn originally weigh? Yulu Learning Mutual Aid

1-1/8× 2=3/4 Bag A has: 182÷(1+3/4)=104kg Bag B: 182-104=78kg Bag A weighs 1638/17kg Bag B weighs 1456/17kg

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