20 kg accounts for 50%, so a * * * has 20/50%=40 kg.
Master Wang processed a batch of parts. On 1 day, 25% of the parts were completed, and the next day, 35% were completed. There are still 360 parts to deal with. How many parts are there in this batch?
The rest is (1-25%-35%)=40%, which is equivalent to 360, so a * * * has 360/40% = 900.
3. There are 48 dance teams in the school, and the chorus is 25% more than the dance team. How many people are there in the dance team and the chorus?
A * * * has 48+48( 1+25%)= 108.
There are 2400 Jin apples in the fruit shop, and the weight of the remaining apples after selling is 40% of the weight of pears. How many kilograms of pears are there in the fruit shop?
The remaining apples = 2400 * (1-1/3) =1800kg.
The weight of pear = 1800/40% = 4500kg.
5. The original price of a refrigerator is 3,500 yuan, with the first price reduction of 1 0% and the second price reduction of 10%. What's the current price of refrigerators in this shop?
Current price = 3500 * (1-10%) (1-10%) = 2835 yuan.
Question 2: The following are the results of three classes in grade six in Spring Festival travel rush:
Class 1, Grade 6: 82; Class 2, Grade 6: 65; Class 3, Grade 6: 72; Total score: 2 19.
Question 1: What percentage does the sixth grade 1 class account for in the total score? (Keep one decimal place before the percent sign)
82/2 19=37.4%
Question 2: What percentage is the grade of Class 3 in Grade 6 higher than that of Class 2 in Grade 6? (Keep one decimal place before the percent sign)
(72-65)/65= 10.8%