Question

Помогите СРОЧНО!!!! В классе 3/5 всех учащихся занимаются в различных кружках из них 2/3 учеников занимаются в спортивных кружках Сколько всего учеников в классе если в спортивных кружках занимается 12 учеников класса??Условие и решение задачи!☝Плиззз

Answer 1

Всего учеников-x чел.
х-3/5 чел-в различных кружках
х-3/5-2/3=12 чел. В спортивных кружках
х=3/5+2/3+12
х=1 4/15 +12
х=13 человек
        

Answer 2

Problem Statement

В классе 3/5 всех учащихся занимаются в различных кружках, из них 2/3 учеников занимаются в спортивных кружках. Известно, что в спортивных кружках занимается 12 учеников класса. Необходимо определить, сколько всего учеников в классе.

Solution

Let's solve the problem step by step:

1. We know that 3/5 of all students in the class are involved in various extracurricular activities. 2. Out of these students, 2/3 are involved in sports clubs. 3. We are given that 12 students are involved in sports clubs.

To find the total number of students in the class, we can use the following steps:

Step 1: Find the number of students involved in extracurricular activities. - Let's assume the total number of students in the class is x. - According to the problem, 3/5 of all students are involved in extracurricular activities. - So, the number of students involved in extracurricular activities is (3/5) * x.

Step 2: Find the number of students involved in sports clubs. - We know that 2/3 of the students involved in extracurricular activities are involved in sports clubs. - So, the number of students involved in sports clubs is (2/3) * (3/5) * x.

Step 3: Set up an equation using the given information. - We are given that 12 students are involved in sports clubs. - So, we can set up the equation: (2/3) * (3/5) * x = 12.

Step 4: Solve the equation to find the value of x. - Multiply both sides of the equation by (3/5) to eliminate the fraction: (2/3) * x = (12 * 5) / 3. - Simplify the equation: (2/3) * x = 20. - Multiply both sides of the equation by (3/2) to isolate x: x = (20 * 3) / 2. - Simplify the equation: x = 30.

Therefore, there are 30 students in the class.

Answer

There are 30 students in the class.