Question

У каждого ученика 4 б 6 тетрадей.учитель проверяет228тетрадей.сколько девочек в классе.если мальчиков 15?

Answer 1

1) 6*15=90(тетр.) — у всех мальчиков вместе 2) 228-90=138(тетр.) — всего у девочек 3) 138:6=23—девочки в классе. Ответ: 23 девочки.

Answer 2

Calculation of the Number of Girls in the Class

To calculate the number of girls in the class, we need to subtract the number of boys from the total number of students.

Given: - Each student has 4 boys and 6 girls. - The teacher checks 228 notebooks. - The number of boys is 15.

Let's calculate the number of girls in the class:

1. Calculate the total number of students: - Each student has 4 boys and 6 girls, so the total number of students is 4 + 6 = 10.

2. Calculate the total number of notebooks checked by the teacher: - Each student has 10 notebooks (4 boys + 6 girls = 10 notebooks per student). - The teacher checks 228 notebooks.

To find the number of students, we can divide the total number of notebooks checked by the number of notebooks per student:

228 notebooks / 10 notebooks per student = 22.8 students.

Since we cannot have a fraction of a student, we need to round the number of students to the nearest whole number. In this case, we can round up to 23 students.

3. Calculate the number of boys in the class: - The number of boys is given as 15.

4. Calculate the number of girls in the class: - Subtract the number of boys from the total number of students: 23 students - 15 boys = 8 girls.

Therefore, there are 8 girls in the class.