Question

Книга в переплёте стоит 15 руб. 50 коп. Сколько стоят переплёты у двух таких книг, если книга дороже переплёта на 15 рублей? я думаю 1 рубль.

Answer 1

Приятель та правилно мыслиш продолжай 

Answer 2

Calculating the Cost of Book Covers

To calculate the cost of the book covers for two books, we need to consider the given information.

According to the question, one book in a cover costs 15 rubles and 50 kopeks. Additionally, the book itself is more expensive than the cover by 15 rubles.

Let's break down the information:

- The cost of one book cover is 15 rubles and 50 kopeks. - The book itself is more expensive than the cover by 15 rubles.

To find the cost of the book, we need to subtract the additional 15 rubles from the total cost of the book and cover.

Let's calculate the cost of the book:

15 rubles and 50 kopeks (cover) + 15 rubles (additional cost) = 30 rubles and 50 kopeks (total cost of the book)

Now, we can calculate the cost of the two book covers:

2 (number of books) * 15 rubles and 50 kopeks (cost of one book cover) = 31 rubles (total cost of the two book covers)

Therefore, the cost of the two book covers is 31 rubles.