In order to have a meaningful children's day, the experimental school launched an activity to donate books to a hope primary school, The number of students in class 2 is 1.2 times that of class 1. On average, each student in class 2 donated one more book than that of class 1;

Suppose: there are x people in class one, then there are 1.2x people in class two
180/1.2X=100/X+1
150 = 100 + X (multiply x on both sides of the equation)
X=50
There are 50 people in class one and 60 people in class two

RELATED INFORMATIONS

1. Three classes in grade seven donate books to hope primary school The number of books donated by class 2 is the average of the three classes. The number of books donated by class 3 is 40% of the total number of grades. How many books have the three classes donated?
2. Class A, class B and class C donated books to the hope project. It is known that one person in class a donated 6 books, two people donated 7 books each, and the others donated 11 books each; one person in class B donated 6 books, three people donated 8 books each, and the others donated 10 books each; two people in class C donated 4 books each, six people donated 7 books each, and the others donated 9 books each How many students are there in each of the three classes?
3. There are three classes in Grade 6 contributing to the hope project. Class 6 (1) contributes 13% of the total. The ratio of class 6 (2) to class 6 (3) is 3:5. It is known that class 6 (3) donates 150 yuan more than Class 6 (1). How much is the total donation of the whole grade?
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5. For the formula 2 (3 + 1) (32 + 1) (34 + 1) (38 + 1) (316 + 1) (332 + 1) + 1, do you know the number of digits it calculates
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14. There are 330 students in Grade 5 and 6 of the experimental primary school, twice as many. How many students are there in each grade?
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16. There are 360 students in the fifth and sixth grades of the experimental primary school. The number of students in the fifth grade is 1.25 times that of the sixth grade. How many students are there in the fifth and sixth grades?
17. There are 180 students in the sixth grade of experimental primary school, among which the number of girls is 9 / 11 of that of boys. How many boys and girls are there in the sixth grade?
18. There are 120 girls in the sixth grade of Huipu experimental primary school, which is 2 / 5 of the number of sixth grade students. The number of sixth grade students is 4 / 15 of the number of the whole school. How many students are there in the primary school
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