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The ratio of class 61 to class 62 is 8:7. If eight students from class 61 are transferred to class 62, the ratio of class 61 to class 62 is 4:5, How many people are there in the two classes? Ask everyone to answer quickly! Who answers best, I will add the score to 50!
It turns out that the number of people in class 61 is half of the total number of people in two classes
8 ÷ (8 + 7) = 8 / 15
At present, the number of class 61 is half of the total number of the two classes
4 ÷ (4 + 5) = 4 / 9
There are two classes in common
8 ÷ (8 / 15-4 / 9) = 90 persons
It turns out that there are students in class 61
8 out of 90 × 15 = 48 persons
It turns out that there are students in class 62
90-48 = 42
RELATED INFORMATIONS
- 1. Class 62 has 12.5% more people than class 61. There are 45 people in class 62. How many people are less in class 61 than class 62?
- 2. There are 100 people in class 61 and class 62. If one seventh of class 61 and two people in class 62 are exchanged, the number of people in the two classes will be equal. How many people are there in class 62
- 3. Class 61 has a student. If class 1 is transferred to class 2, the number of students in the two classes is equal. Class 62 has () students?
- 4. The number of people in class 61 is 2 / 13 less than that in class 62. If four people are transferred from class 62 to class 61, then the number of people in the two classes is equal. How many people are there in each class
- 5. The number of boys in class 61 is twice that of girls, which is 5 times less than that of girls. The number of boys in class 61 is 2 times less than that of girls in class 62. The total number of girls in class 62 is 3 times less than that of girls in class 61. How many boys and girls are there in class 61
- 6. There are 16 boys and 14 girls in class 61. The number of students in class 61 is one sixth less than that in class 62. How many students are there in class 62? A car takes three fifths of the whole journey in three hours from place a to place B. at this time, it is 60 kilometers away from place B. how many kilometers are there between place a and place B?
- 7. There are 25 boys and 23 girls in class 62. The number of students in class 61 is more than 7 / 8 of that in class 62. How many students are there in class 61?
- 8. The number of boys in class 61 is 2 times that of girls, which is 5 times less than that of girls. The number of boys in class 61 is 2 times less than that of girls in class 62. The total number of girls in class 62 is 10 times less than that of girls in class 61. How many boys and girls are there in class 61?
- 9. The number of students in class 61 is equal to that in class 62. The ratio of boys in class 61 to girls in class 62 is 1:3, and the ratio of boys in class 62 to girls in class 61 What is the ratio of the number of girls in class 61 to that in class 62?
- 10. There are 98 students in class 1 and class 2 of grade 6. The school selected 26 students from the two classes to form the flag protection team, which took 14% of the number of students in class 1 and 27% of the number of students in class 2?
- 11. There are 48 students in class 61. If one twelfth of the students in class 61 goes to class 62, the number of students in both classes will be the same. How many students are there in class 62 Xiao Gang poured a glass of milk, drank one third of it and then filled it with water, drank another half of it and then filled it with water. Finally, he drank all of it. Q: which one is more, Xiao Gang drank more milk and later added more water? Why?
- 12. Class 61 has six more students than class 62. If class 62 transfers two students to class 61, the ratio of class 61 to class 62 is 4:3. How many students are there in each class
- 13. There are 55 people in class 61, class 62.57 to make the ratio of class 61 to class 62 7:9, how many people should be lost in class 61 to class 62
- 14. There are 50 students in class 61, a quarter more than class 62. How many students are there in the two classes?
- 15. The number of class 61 is 11 / 10 of that of class 62. The number of class 61 is several percent more than that of class 62
- 16. There are 40 students in class 61 and 50 students in class 62. What is the percentage of class 61? What is the percentage of class 62?
- 17. The number of class 61 is 11 / 10 of that of class 62. How many percent more is the number of class 61 than that of class 62?
- 18. The number of students in class 61 of experimental primary school is 105% of that in class 62. How many% more students in class 61 than that in class 62? Come on. How did you get here
- 19. The number of class one is five sixths of that of class two. How many times is the number of class two? What is the proportion of class one to the total number of class two?
- 20. The number of people in a class is 5 / 6 of that in twelve classes. The number of people in two classes is a fraction of that in one class, and the number of people in one class accounts for a fraction of the total number of people in two classes