Question

4 ученика 5-б класса , а это - 12,5% всех учащихся этого класса, закончили первый семестр на отлично. Сколько учеников в 5-б классе ?

Answer 1

Составляем пропорцию
4 - 12,5
х - 100

х=4*100/12,5=32 ученика

Answer 2

4 ученика 5-б класса составляют 12,5% всех учащихся этого класса
чтобы узнать, сколько учеников в 5-б классе, надо найти 100%
то есть 4*100/12,5=32(ученика)
ответ:32

Answer 3

Calculating the Number of Students in 5-B Class

To calculate the number of students in the 5-B class, we can use the fact that 4 students, which is 12.5% of all the students in the class, finished the first semester with excellent grades.

Step 1: Calculate the Total Number of Students We can use the percentage to find the total number of students in the class.

Step 2: Calculate the Number of Students in 5-B Class Once we have the total number of students, we can calculate the number of students in the 5-B class.

Let's proceed with the calculations.

Step 1: Calculate the Total Number of Students

To find the total number of students in the class, we can use the fact that 4 students represent 12.5% of all the students in the class.

12.5% can be represented as a fraction: 12.5/100 = 0.125

Let's denote the total number of students as "x". We can set up the following equation: 0.125 * x = 4

Solving for x: x = 4 / 0.125 x = 32

So, the total number of students in the class is 32.

Step 2: Calculate the Number of Students in 5-B Class

Since we know the total number of students in the class is 32, we can calculate the number of students in the 5-B class.

Therefore, the number of students in the 5-B class is 32.