Question

В школе 400 учащихся.10% всех школьников -шестиклассники.45% из них-девочки.Сколько девочек и мальчиков в шестых классах?

Answer 1

400 уч. - 100%
     ?       -    10%
1) 400*10/100 = 40 (уч) в шестых классах

40 уч. - это 100%
   ?     - 45%
2) 40*45/100 = 18 (уч) девочек
3) 40 - 18 = 22 (уч) мальчиков
Ответ: 18 из учеников, учащихся в шестом классе, девочки, 22 уч. - мальчики

Answer 2

10% от 400 это 40чел.(6 класс)
45% от 40чел. это 18 (девочек)
т.е. в шестых классах: 18 девочек и 22 мальчика

Answer 3

Calculating the Number of Girls and Boys in the Sixth Grade

To calculate the number of girls and boys in the sixth grade, we can use the following information: - The school has 400 students. - 10% of all students are in the sixth grade. - 45% of the sixth graders are girls.

Let's calculate the number of girls and boys in the sixth grade step by step.

1. Total number of sixth graders: - 10% of 400 students are in the sixth grade. - 10% of 400 = 0.10 * 400 = 40 sixth graders.

2. Number of girls in the sixth grade: - 45% of the sixth graders are girls. - 45% of 40 = 0.45 * 40 = 18 girls.

3. Number of boys in the sixth grade: - Total sixth graders - Number of girls = Number of boys. - 40 - 18 = 22 boys.

So, there are 18 girls and 22 boys in the sixth grade.

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