Question

Решите задачу. Девочек в школе 675, а мальчиков- 55% от всего количества учеников. На сколько больше в школе мальчиков, чем девочек? Какой процент состовляет количество мальчиков от количества девочек?

Answer 1

Ответ:

Пошаговое объяснение:

675 девочек и это 100-55=45%, тогда 675:45*100=1500 всего учеников, мальчиков 1500-675=825

825-675=150

если 675 - 100%

то 825 х%

тогда 825*00/675=122,2%

Answer 2

Problem Analysis

To solve this problem, we need to find the difference between the number of boys and girls in the school and calculate the percentage of boys compared to the number of girls.

Solution

Given: - Number of girls in the school: 675 - Boys constitute 55% of the total number of students

To find the number of boys in the school, we can calculate 55% of the total number of students and subtract the number of girls from it.

Let's calculate the number of boys: - Total number of students = Number of girls + Number of boys - Number of boys = Total number of students * Percentage of boys

Using the given information, we can calculate the number of boys: - Total number of students = Number of girls / (1 - Percentage of boys) - Number of boys = Total number of students * Percentage of boys

Now, let's calculate the difference between the number of boys and girls: - Difference = Number of boys - Number of girls

Finally, let's calculate the percentage of boys compared to the number of girls: - Percentage of boys = (Number of boys / Number of girls) * 100

Calculation

Given: - Number of girls in the school = 675 - Percentage of boys = 55%

Calculating the number of boys: - Total number of students = 675 / (1 - 0.55) = 1500 - Number of boys = 1500 * 0.55 = 825

Calculating the difference between the number of boys and girls: - Difference = 825 - 675 = 150

Calculating the percentage of boys compared to the number of girls: - Percentage of boys = (825 / 675) * 100 = 122.22%

Answer

The number of boys in the school is 825, which is 150 more than the number of girls. The percentage of boys compared to the number of girls is approximately 122.22%.

Please let me know if I can help you with anything else.