Question

в школьном аркестре 7 девочек,а мальчиков в 4 раза больше,чем девочек.Сколько всего детей в школьном оркестре? На сколько больше мальчиков в этом оркестре, чем девочек?

Answer 1

1)7*4=28-сколько мальчиков

2)28+7=35-всего детей

3)28-7=21- 

Ответ: мальчиков на 21больше чем девочек

Answer 2

7*4=28;

28+7=35;

28-7=21;

Ответ: 35 детей всего, на 21 мальчиков больше, чем девочек.

 

 

 

 

 

 

 

 

 

Answer 3

Calculating the Total Number of Children in the School Orchestra

To calculate the total number of children in the school orchestra, we can use the information provided that there are 7 girls and the number of boys is 4 times greater than the number of girls.

Let's denote the number of girls as G and the number of boys as B. According to the given information, we have the following equation: B = 4G

The total number of children in the orchestra can be calculated as the sum of the number of girls and boys: Total Children = G + B

Substituting the value of B from the first equation into the second equation, we get: Total Children = G + 4G

Solving for Total Children: Total Children = 5G

Calculating the Total Number of Children and the Difference in Gender

Given that the number of boys is 4 times greater than the number of girls, we can calculate the total number of children and the difference in gender as follows:

Total Children = 5G

Since the number of boys is 4 times greater than the number of girls, we have: B = 4G

Substituting the value of B into the equation for Total Children: Total Children = G + 4G = 5G

So, the total number of children in the school orchestra is 5G.

The number of boys is 4G, and the number of girls is G.

Therefore, the difference in the number of boys and girls is: Difference = 4G - G = 3G

So, there are 3 times more boys than girls in the school orchestra.

Conclusion

The total number of children in the school orchestra can be calculated as 5 times the number of girls. The number of boys is 4 times greater than the number of girls, resulting in 3 times more boys than girls in the orchestra.