Question

В школе 83 первоклассника.В 1 Б классе на 5 человек меньше,чем в 1 А,но на 3 человека больше,чем в 1 В классе.Сколько школьников в 1 В классе.

Answer 1

83-8=75   
75/3=25 в В классе
25+5=30 в А классе
25+3=28 в Б классе
Проверка: 25+28+30=83

Answer 2

В 1 Б классе на 5 человек меньше, чем в 1 А классе, но на 3 человека больше, чем в 1 В классе. Нам нужно определить количество школьников в 1 В классе.

Solution:

Let's assume the number of students in 1 В class is x.

According to the given information: - The number of students in 1 Б class is 5 less than in 1 А class. - The number of students in 1 Б class is 3 more than in 1 В class.

Based on these conditions, we can set up the following equations:

Number of students in 1 Б class = Number of students in 1 А class - 5 Number of students in 1 Б class = Number of students in 1 В class + 3

Setting these two equations equal to each other, we can solve for the number of students in 1 В class:

Number of students in 1 А class - 5 = Number of students in 1 В class + 3

Simplifying the equation, we get:

Number of students in 1 В class = Number of students in 1 А class - 5 - 3

Number of students in 1 В class = Number of students in 1 А class - 8

Therefore, the number of students in 1 В class is 8 less than the number of students in 1 А class.

Please note that the exact number of students in 1 В class cannot be determined without knowing the number of students in 1 А class.