Question

В танцевальном классе всего 10 учеников. На 8 Марта мальчики принесли коробку с 80 конфетами и раздали девочкам по несколько конфет, всем поровну. После этого в коробке осталось еще 3 конфеты. Сколько мальчиков в этом классе?

Answer 1

                1 СПОСОБ
1)80+3=83(конф.)-изначально в коробке
2)80:5=16(конф.)-каждой девочке
3)10-5=5(чел.)-мальчиков
    Ответ: 5 чел.
                    2 СПОСОБ
1)80:4=20(конф.)-каждой девочке
2)10-4=6(чел.)-мальчиков
   Ответ: 6 человек.
                    3 СПОСОБ
1)80:8=10(конф.)-каждой деве
2)10-8=2(чел.)-мальчика
   Ответ:2 чел.

Answer 2

1 мальчик в этом класе

Answer 3

Problem Analysis

In a dance class with 10 students, the boys brought a box of 80 candies on March 8th. They distributed an equal number of candies to each girl, and there were 3 candies left in the box afterward. We need to determine how many boys are in the class.

Solution

Let's assume there are x boys in the class. Since the candies were distributed equally among the girls, each girl received the same number of candies. Therefore, the total number of candies distributed to the girls can be calculated as 10 - x (since there are 10 students in total and x of them are boys).

According to the problem, the boys brought a box of 80 candies and there were 3 candies left after distributing them to the girls. This means that the total number of candies distributed to the girls is 80 - 3 = 77.

To find the number of candies each girl received, we divide the total number of candies distributed to the girls by the number of girls in the class, which is 10 - x. This can be expressed as:

77 / (10 - x) = y, where y represents the number of candies each girl received.

Since the candies were distributed equally, y should be a whole number. Therefore, we need to find a value of x that satisfies this equation.

Let's solve this equation to find the value of x:

77 / (10 - x) = y

To simplify the equation, we can multiply both sides by (10 - x):

77 = y * (10 - x)

Since y is a whole number, we can assume that y = 1 (since the problem states that each girl received multiple candies). Substituting this value into the equation, we get:

77 = 1 * (10 - x)

Simplifying further:

77 = 10 - x

Rearranging the equation to solve for x:

x = 10 - 77

x = -67

Since we cannot have a negative number of boys, it means that there is no solution to this problem. Therefore, there are no boys in this dance class.

Answer

There are no boys in this dance class.