Question

В школьной библиатеке 10 500 книг.Научно-популярная литература составляет пятую часть всех книг,художественной литературы-на 1670 книг больше,а остальное-учебники.Сколько учебников в библиотеке?

Answer 1

1) 10500:5=2100(кн) -научн-популярн;
2) 2100+1670=3770(кн) - художественная;
3)2100+3770=5870 (кн) - научно - популярн. и художественная вместе
4) 10500 -5870= 4630(кн) - составляют учебники

Answer 2

Calculation of Textbook Quantity in the Library

To calculate the number of textbooks in the school library, we need to use the information provided. Let's break down the given information:

- Total number of books in the library: 10,500. - Scientific-popular literature constitutes one-fifth (1/5) of all the books. - Fiction literature is 1,670 books more than scientific-popular literature. - The remaining books are textbooks.

To find the number of textbooks, we need to subtract the number of scientific-popular and fiction books from the total number of books.

Let's calculate step by step:

1. Calculate the number of scientific-popular books: - One-fifth (1/5) of all the books: 10,500 / 5 = 2,100 books.

2. Calculate the number of fiction books: - Fiction books are 1,670 books more than scientific-popular books. - Fiction books = Scientific-popular books + 1,670 = 2,100 + 1,670 = 3,770 books.

3. Calculate the number of textbooks: - Textbooks = Total books - (Scientific-popular books + Fiction books) - Textbooks = 10,500 - (2,100 + 3,770) = 10,500 - 5,870 = 4,630 books.

Therefore, there are 4,630 textbooks in the school library.