Question

Решите задачу В библиотеке 120 книг. Художественная литература относиться к научной как 4:2.Найди сколько книг по научной литературе. РЕШИТЬ БЕЗ X

Answer 1

4+2=6 частей все книги
120:6=20 книг приходится на одну часть
20*2=40 книг научная литература
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Answer 2

Problem Analysis

We are given that there are 120 books in a library, and the ratio of fiction books to scientific books is 4:2. We need to find the number of scientific books in the library.

Solution

Let's assume the number of fiction books is 4x and the number of scientific books is 2x. According to the given ratio, the total number of books can be expressed as:

4x + 2x = 120

Simplifying the equation:

6x = 120

Dividing both sides by 6:

x = 20

Now, we can find the number of scientific books by substituting the value of x back into the equation:

2x = 2 * 20 = 40

Therefore, there are 40 books on scientific literature in the library.

Answer

The number of books on scientific literature in the library is 40.