Question

В книге 900 страниц. Ученик в течение недели читал одинаковое количество страниц каждый день. После этого в книге осталось 109 непрочитанных страниц. Сколько всего страниц прочита мальчик за субботу и воскресенье.? Помогите решить задачу!!

Answer 1

всего - 900 стр.

неделя - 7 дней

900-109=791-прочел за неделю

 791:7=113стр. - в день.

суббота и воскр. - 2 дня

113*2=226 стр.

Ответ: 226 стр. мальчик прочитал за субболу и воскресенье.

 

Answer 2

Problem Analysis

We are given that a student reads the same number of pages each day for a week and that after this week, there are 109 unread pages left in the book. We need to determine how many pages the student read on Saturday and Sunday.

Solution

Let's assume that the student reads x pages each day for a week. We know that the total number of pages in the book is 900, and after the week, there are 109 unread pages left.

To find the number of pages the student read on Saturday and Sunday, we need to subtract the number of unread pages from the total number of pages in the book. Then, we divide this result by the number of days in the week (7) to find the number of pages read each day. Finally, we subtract the number of pages read on the other five days to find the number of pages read on Saturday and Sunday.

Let's solve the problem step by step:

1. Subtract the number of unread pages (109) from the total number of pages in the book (900): - 900 - 109 = 791 pages read in total.

2. Divide the total number of pages read (791) by the number of days in the week (7) to find the number of pages read each day: - 791 / 7 = 113 pages read each day.

3. Multiply the number of pages read each day (113) by the number of days on the weekend (2) to find the number of pages read on Saturday and Sunday: - 113 * 2 = 226 pages read on Saturday and Sunday.

Therefore, the student read a total of 226 pages on Saturday and Sunday.

Answer

The student read a total of 226 pages on Saturday and Sunday.