Question

В школьной библиотеке в четверг выдали 17 книг, в пятницу - на15 больше , чем в суботу - в2 раза больше чем в предыдущие два дня. Сколько книг взяли ребята в библиотеке за 3 дня?

Answer 1

В ШКОЛЬНОЙ БИблиотеке  в четверг  выдали 17 книг ,в пятницу - на 15 больше,а в субботу-в 2 раза больше чем в предыдущие два дня.Сколько  книг взяли ребята в библиотеки за 3 дня?

1) 17+15= 32 книги в пятницу
2) 17+32 =49 книг за четверг и пятницу
3) 49*2= 98 книг в субботу
4) 49+98= 147 книг за 3 дня

Answer 2

Calculation of Books Borrowed in the School Library

To calculate the total number of books borrowed by students in the school library over three days, we need to analyze the information provided.

According to the information given: - On Thursday, 17 books were borrowed. - On Friday, the number of books borrowed was 15 more than on Thursday. - On Saturday, the number of books borrowed was twice the number borrowed on the previous two days combined.

Let's break down the information step by step:

1. Thursday: 17 books were borrowed. 2. Friday: The number of books borrowed was 15 more than on Thursday. Therefore, the number of books borrowed on Friday can be calculated as 17 + 15 = 32. 3. Saturday: The number of books borrowed on Saturday was twice the number borrowed on the previous two days combined. The total number of books borrowed on Thursday and Friday is 17 + 32 = 49. Therefore, the number of books borrowed on Saturday can be calculated as 2 * 49 = 98.

Now, let's calculate the total number of books borrowed over the three days:

- Thursday: 17 books - Friday: 32 books - Saturday: 98 books

To find the total number of books borrowed, we add the number of books borrowed on each day: 17 + 32 + 98 = 147.

Therefore, the total number of books borrowed by students in the school library over the three days is 147.