Question

в школьной библиотеке имеются учебники и художественная литература.из них 30%составляет художественная,а остальные 1806 книг-учебники.сколько всего книг в библиотеке?

Answer 1

1) 100-30=70% - составляют учебники

2)  1806 книг - 70%

      х книг    100%

   х=1806*100/70

   х=2580 (книг)

Ответ: в библиотеке 2580 книг

Answer 2

Calculation of Total Books in the Library

To calculate the total number of books in the library, we need to determine the number of books that make up 30% of the library's collection and the number of textbooks in the remaining 70%.

Let's assume that the total number of books in the library is represented by the variable x.

According to the given information, 30% of the books in the library are fiction, which means that 70% of the books are textbooks.

We can set up the following equation to represent this information:

0.3x = 1806

To solve for x, we can divide both sides of the equation by 0.3:

x = 1806 / 0.3

Calculating this, we find that the total number of books in the library is 6020.

Therefore, there are a total of 6020 books in the library.

Answer:

The total number of books in the school library is 6020.