Score application questions help me out of 60 questions, and the answers and formulas are all writte

1. A school planted 20 trees and 4 died, and the survival rate of these trees was (4 5). 2、

In the sixth-grade mathematics mid-term examination, 47 students passed and 3 failed, with a passing rate of 94%. 3、

Class Six (1) has 24 boys and 30 girls.

The number of girls is male (125, the number of girls is the number of the whole class.

The number of girls is higher than that of boys (25, and the number of boys is less than that of girls (20

24% of 25% is (6, 24% less than 25% of the number is (18

15% of a number is 24, and this number is (160

25% more than (20% more.)

7. A number that is 20% less than a number is 20, and this number is (25). 8、（20

25% less than 20%.

9. To build a road, 20% of it was repaired on the first day and 25% on the second day.

A total of 45 meters were repaired in two days, and 45 meters accounted for 45% of the total length

The second day was 5 meters more than the first. 5 meters is equivalent to (5%) of the total length. There are 55 meters left unrepaired, and 55 meters is the full length (55%).

1. A grain store brought in a batch of rice, sold 3 10 on the first day, and sold the remaining 4 5 on the second day, leaving 84 kilograms, how many kilograms of this batch of rice are there?

2. A piece of steel, the first time to cut off the full length of 2 5, the second time to cut off 2 5 meters, there is still half of the full length left, how many meters is the total length of this steel?

3. If you use a tractor to plough the land, if you plough 5 hectares of land every day, you can finish it in 5 days, and actually complete the task one day in advance, how much has the work efficiency improved?

1。3 10 sold on the first day, 1-3 10 = 7 10 remaining

The remaining 4 5 are sold the next day, 7 10 * 4 5 = 14 25 are sold the next day, and there are 7 50 left

There are still 84 at this time, so the total = 84 7 50 = 600

So a total of 600 kilograms.

2。There is still half of the full length left, indicating that 1 2 is truncated

The first truncation of the full length of 2 5 indicates that the second truncation of 1 2-2 5 = 1 10

The second truncation is 2 5 meters, so the total length = 2 5 1 10 = 4 meters.

3。According to the original plan, it will be ploughed in 5 days, so ploughing = 5 5 = 1 hectare per day.

Now one day earlier, so cultivated land per day = 5 4 = hectares per day.

Improved (

tons increased by 100 tons, increased ( ) 100 decreased to 85, decreased ( ).

The ( ) is 18,3 75% of 5 kg is 80% of ( ) kg.

4 out of the parts are unqualified, and the pass rate of the parts is ( ).

4. The number of A is 60% more than the number of B, and the number of B is less than the number of A

An insurance company's turnover in July this year is 56 million yuan, if the business tax is paid at 5% of the turnover, how much business tax should be paid in July?

In addition to paying business tax at 5% of the turnover, the hotel in a city must also pay the urban maintenance and construction tax at 7% of the business tax. If the average monthly turnover of a restaurant is 140,000 yuan. So how much is the total amount of these two taxes to be paid each year?

A township wants to build a road through the village, the first phase of the project has repaired 50% of the total length, the second phase of the project has repaired 30% of the total length, there are still 8 kilometers left to repair, how many kilometers is this road through the village?

Xiaohong read a story meeting, read 45 pages on the first day, read 25% of the whole book on the second day, and read exactly 20% more pages on the second day than on the first day, how many pages are there in the book?

There are 80 bottles of Coke in the store, and the number of bottles of Coke is 1/5 less than that of Sprite, how many bottles are there in Sprite?

A train from Shanghai to Tianjin, has traveled 808 kilometers, there is still 1/3 left to run, how many kilometers is the railway from Shanghai to Tianjin?

The railway length from Shanghai to Tianjin.

There is a batch of potato chips in the mall, which sells 2/5 of the total in the morning and 4/8 of the total in the afternoonThere are 54 bags left that are not sold How many bags are there in this batch of potato chips?

Uncle Zhang's family has 15 peach trees, and the number of pear trees is two-thirds of that of peach trees and two-sevenths of apple trees.

There are 400 cows, 1/4 more than sheep, how many sheep are there?

Two rectangles a b

A is 40% longer than B is longer

The width of A is 30% less than that of B

Q: Is A bigger or smaller than B? How much is big (or small).

1.156-152 = 4 cm.

2.15 (5000 50) = 1500 kg 31500-1060 = 340 meters.

4.Kilogram = 27 kg 440 grams.

5.Hourly = 3*5000=15000 square meters = hectare 2 hours = hectare.

If you process 15 more on the second day, it will be the same as the first day, which is 20%, so that after two days, there will be 1-20% - 20% = 60%.

The next day, if there are 15 more processing, the remaining 15 will be less, which is 75-15=60

A: This batch of parts is 100 pcs.

Solution: Suppose there are x parts in this batch, x-20%x-(20%x-15)=75

x-40%x=60

60%x=60

x=100A: There are 100 parts in this batch.

60 * 2 = 120 yuan, which means the gross income obtained if this batch of cucumbers continues to be sold. 120 150% = 80 yuan, indicating the purchase price of this batch of cucumbers. 120-80 = 40 yuan, indicating the net profit (result) that the cucumber business can bring to the vendor

60 * 2 = 120, half of the profit is 60, all is double.