The application of mathematical percentages, to find solutions

The price of the commodity is 50 (1+40%), and the profit is 50-the price of the commodity, which is 110% of the original price of the answer c

360*(RMB.)

120 RMB.

Assuming that the price of the commodity is a, then after the price increase, after the discount, the loss is 15% 280*, and the profit is 224-200 = 24 yuan.

The eight formulas for percentage application questions are as follows. Comparator Standard Score (Percentage), Standard Score Compare, Compare Score Comparator, Compare Score Comic Standard Scale. Common formulas for percentage solution problems, growth number standard number travel growth rate, decrease number standard number reduction rate.

The difference between two numbers is a small number of more (hundredths) (increases), and the difference between two numbers is a larger number a few less (hundredths) (decreases).

Calculation skills for percentage problemsAnswering skills for percentage application questions: Percentage application questions are common question types for percentage application questions, which refer to some real-life attendance rate, germination rate, pass rate, oil yield, excellent rate, etc., this kind of question splitting refers to the brother must figure out the meaning of the question, to be able to analyze, some variant questions are also based on the initial topic changes, such as attendance.

If the question gives the number of attendance, the total number of people, you can find the attendance rate, divide the number of attendance by the total number of people by 100%, if the question gives the attendance rate, the number of attendance, you can find the total number of people, use the number of attendance rate of the total number of people, if the question gives the total number of people, the attendance rate, you can find the number of attendees, multiply the total number of people by the attendance rate.

According to the meaning of the title, the formula is obtained.

The proportion of Sun Kuan bent by A is buried in the bright example: 1000 2600 38% and the proportion of B is 800 2600 31%.

c Proportion of Kai Containment: 500 2600 19%.

d Percentage: 300 2600 12%.

a:10 Da Bao Chang 26=5 13; b:8/26=4/13;c:5/26;d:3 stuffy 26; I'm glad to help you, and I wish you a happy life.

The percentage earned is 7000 7300 * 100% = (number of earned principal) * 100 100

Percentage of vests 1-52%-30% 18% Total production garment production 36000 30% 120000 (pieces) Tops 120000 52% 62400 (pieces) Vests 120000 18% 21600 (pieces).

Condition: Top 52%, Shirt 30%, Vest ( ).

Vest ( ) = 1-52% - 30% = 18%.

1. Pass rate = (48-3) 48=

2. Survival rate = 78 80 =

3. Attendance rate = (480-3) 480=

4. Read 200 40%=80 pages.

5. There are 104 65% (1-65%)=56 km.

6. Growth rate (234-200) 200=17%7. Fat content 350 25%= grams.

8. There are 3 (14%-11%)=100.

Total: 200 (11%+14%)=800.

1, the three people who failed, the passing is 45 people, 45 48 =, the pass rate is 2, 78 80 =, and the survival rate is.

3, 480-3 = 477 people in attendance, 477 480 = attendance was 4,200*, read 80 pages.

5. Let a total of x meters, so x = 160, and the total length is 160 meters.

6,234-200 = 34,34 200 =, with a growth rate of 17% 7,350*, containing fat grams.

8 (1), let the total parts x, and solve x=100, then there are 100 parts.

2), set a total of x parts, solve x = 800, then a total of 800 parts.

1.Percent.

2.Percent.

3.Percent.

Page. Kilometer. 6.17 percent

One god pretended to be a seed ** and earned 25% The original investment was 3000 (1+25) 2400 yuan.

Another stock game rushed to the stove ticket lost 25% and originally invested 3000 (1-25) 4000 yuan.

So I lost 400 yuan.

The percentage earned is 7000 7300 * 100% =

The amount earned (Principal) * 100 100

The percentage earned is 7000 7300 * 100% =

The formula is the amount of money earned in Principal * 100%.

The percentage earned is:

The amount earned (Principal) * 100 100

So the topic is:

See how many times you earn your stake: 7000 7300 = 70 73, as a percentage.

7000/7300*100%=。

The formula is the amount of money earned in Principal * 100%.

There is a total of x yuan for the solution.

1-60%）x-12=25%x-3

x=60A: A total of 60 yuan.

A and B have a total of RMB: (12-3) (1-25%-60%)=60 (RMB).

Solution: If there is a total of x dollars, then A has it and B has it.

x=60 so there is a total of 60 yuan.

Let the total number of x yuan: (1-60%) x-12 = 25% x-3

Solution: x=60

A: A total of 60 yuan.