There are 16 students in class 61, one third of boys and one fourth of girls. There are 19 students in class 61, one third of girls and one fourth of boys
sixty
Let X be the number of boys and y be the number of girls
1/3X+1/4Y=16
1/4X+1/3Y=19
Add the above two formulas to get
1/3x+1/4y+1/4x+1/3y=(1/3+1/4)(x+y)=16+19
So x + y = 60
RELATED INFORMATIONS
- 1. There are 21 boys and 24 girls, and the number of boys is () less than that of girls
- 2. The total number of students in a class is 24 more than that of boys and 21 more than that of girls I feel it's the same. It seems too simple
- 3. 1. The ratio of male to female students in a class is 2:3, among which there are 24 girls, how many boys and how many students in the class?
- 4. There are 28 girls in class 5 (1), 2 less than boys. What's the percentage of girls? What's the percentage of boys?
- 5. The number of male students in Grade 6 is 710 times that of female students, so the number of male students accounts for & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;) of the whole grade
- 6. The number of male students in Grade 6 is 710 times that of female students, so the number of male students accounts for & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;) of the whole grade
- 7. The number of male students is 2 / 3 of that of female students, and what is the number of male students in the class? Why?
- 8. There are 22 boys and 23 girls in a class. What's the number of boys? The unit "1" here is () can you tell me the reason There are 22 boys and 23 girls in a class. What's the number of boys? The unit "1" here is (& nbsp; & nbsp;) & nbsp; & nbsp; can you tell me why?
- 9. The number of boys is two fifths more than that of girls. The number of boys is a fraction of that of girls. The number of girls is a fraction less than that of boys
- 10. The number of male students is two fifths more than that of female students. What is the number of male students? What is the number of female students less than that of male students?
- 11. There are 16 boys and 14 girls in class 6 (1), and 19 girls and 14 boys in class 6 (1). How many students are there in class 6 (1)?
- 12. There are 16 boys and 14 girls in class 6 (1), and 19 girls and 14 boys in class 6 (1). How many students are there in class 6 (1)?
- 13. In class 6 (2), there are 16 boys and 1 / 4 girls, and 19 girls and 1 / 4 boys. How many students are there in this class?
- 14. There are 16 boys and 14 girls in class 6 (1), and 19 girls and 14 boys in class 6 (1). How many students are there in class 6 (1)?
- 15. There are X students in a class, of which 51% are boys, while the number of girls is () A. 49%xB. 51%xC. x49%D. x51%
- 16. The number of male students is 5 / 6 of the number of female students, and the number of female students in the class should be calculated
- 17. Class 51 boys account for 56% of the class, and there are 50 students in the class. How many girls are there?
- 18. There are 48 students in class 54, including 29 boys. What is the proportion of girls in the class? What is the proportion of boys in girls? What is the proportion of girls in boys?
- 19. There are 45 students in class 52, including 29 boys. What is the proportion of boys in the class? What is the proportion of girls in the class?
- 20. There are 26 boys and 18 girls in seven classes in five years. How many percent of the class are boys and girls? It's urgent, &_; &_; &_; &_; &_;