Question

В классной комнате было несколько учеников. После того как 8 учеников вошли, а 11 вышли, в комнате их стало 27. Сколько учеников было в классной комнате первоначально?

Answer 1

Изначально было 24 потому-что разница между вошедшими и вышедши означает 3 решение:1)11-8=3(уч.)-разница
2)27-3=24(уч.)-было изначально

Answer 2

Problem Analysis

We are given the information that there were initially some students in a classroom. After 8 students entered and 11 students left, there were a total of 27 students in the classroom. We need to determine the initial number of students in the classroom.

Solution

Let's assume the initial number of students in the classroom is x.

According to the given information: - After 8 students entered, the number of students in the classroom increased by 8: x + 8. - After 11 students left, the number of students in the classroom decreased by 11: (x + 8) - 11. - The resulting number of students in the classroom is 27: ((x + 8) - 11) = 27.

To find the initial number of students, we can solve this equation for x.

Calculation

Let's solve the equation:

((x + 8) - 11) = 27

Simplifying the equation:

x + 8 - 11 = 27

x - 3 = 27

Adding 3 to both sides of the equation:

x = 27 + 3

x = 30

Answer

The initial number of students in the classroom was 30.

Explanation

Initially, there were 30 students in the classroom. After 8 students entered, the number of students increased to 38. Then, 11 students left, resulting in a total of 27 students in the classroom.