There are 50 students in class 1 of grade 6, including 24 girls. The ratio of boys to girls is (), and boys account for ()

The ratio of boys to girls is 13:12, and boys account for 52% of the class

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1. There are 24 girls in class 61, 20% less than boys. How many girls are less than boys also Party A and Party B work together to build the road. Party A will finish it in five days alone. Party B will finish 1 / 3 of it in five days alone. The remaining two teams will finish it in a few days
2. There are 24 boys in class 61, 20% more than girls. How many girls in class 61
3. There are 24 girls in class 61, one seventh less than boys. How many boys are there?
4. There are 40 boys and 36 girls in class 61. How many percent more boys than girls
5. There are 24 boys and 28 girls in class 61. Two girls have been transferred this semester, and now the number of girls is the same as that of boys
6. There are 24 boys, 2 more than 1 / 2 of girls. How many girls are there How do you do it? List it for me, will you?
7. There are 24 girls in class 5 (4). Boys are one sixth more than girls. How many boys are there
8. There are 24 boys in class 6 (2), one eighth more girls than boys, and more girls than boys?
9. There are 50 students in class 61, including 24 girls and 26 boys
10. There are 26 boys and 24 girls in class 5 (1). What is the percentage of girls in the class? Determinant
11. There are 26 boys and 24 girls in class one. Boys account for (), girls account for (), and boys are () more than girls, Girls less than boys 2. There are three shopping malls of a, B and C selling a brand of cosmetics, all of which are priced at 400 yuan. Store a carries out 20% discount on sales promotion, store B carries out "return 60 yuan in cash after 300 yuan", and store C carries out "buy one get two free" (that is, buy one big bottle of 400 yuan, give two small bottles, and the small capacity is one tenth of the big bottle). Which one is cost-effective? (write the formula.)
12. There are 12 male members and 16 female members in the school dance team. What is the percentage of female members? What's the number of male members of the dance team?
13. 5、 There are 20 boys in the first class, 5 less than girls. What percentage of the class are boys and girls?
14. The number of boys in class 5 (1) is 4 / 5 of the number of girls. What is the percentage of boys in the class? What is the percentage of girls in the class?
15. There are 28 boys and 26 girls in class 51. How many times is the number of boys? How many times is the number of boys
16. Boys account for 4 / 7 of the students in a school, and girls are 50 less than 7 / 8 of boys. How many students are there in this school?
17. Dongfeng primary school has 450 students. The ratio of girls to boys is 4:5. How many boys and girls are there in this school?
18. There are 1260 students in the primary school. The number of boys is four fifths of the number of girls. How many boys are there in the school
19. There are a number of boys and 4 / 5 of girls in the school. How many students are there in the school
20. In the two groups of data, the score above 130 is excellent. How many boys and girls are excellent, and how many students are excellent? The results of one minute rope skipping competition of 10 boys and 10 girls in class 1 of five years are as follows Boys: 142, 128, 138, 129, 140, 142, 137, 96, 98, 142 Female students: 128, 143, 151, 148, 146, 150, 147, 128, 128, 140