Question

Мальчики решили купить одноклассницам по цветку и для этого мальчики собрали 450 рублей а затем на эти деньги купили ромашки по 35 рублей.Сколько было девочек в класе,если у них осталось 30 рублей?

Answer 1

450-30=420/35=12

12 Девочек в классе 

Answer 2

Calculating the Number of Girls in the Class

To calculate the number of girls in the class, we can use the information provided about the amount of money the boys collected, the cost of the flowers, and the remaining money.

The boys collected 450 rubles and bought daisies for 35 rubles each. After buying the flowers, they had 30 rubles left.

Let's denote: - x as the number of girls in the class - y as the total cost of the daisies - z as the remaining money

We can set up the following equation: y = 35x z = 450 - y

We know that z = 30. Substituting the value of y from the first equation into the second equation, we get: 30 = 450 - 35x

Solving for x: 35x = 450 - 30 35x = 420 x = 420 / 35 x = 12

So, there were 12 girls in the class.

This calculation is based on the information provided and the given constraints.