Question

Помогите решить!!! В книге 320 страниц.Прочитали 1/4 всей книги, а затем 1/2 остатка. Сколько страниц осталось в книге? Я посмотрела в ответах и там написано, что ответ: 120 страниц, но мне нужно решение! Помогииитее прошу!!!!!!

Answer 1

1)320:4=80(стр)
2)320-80=240(стр)
3)240:2=120(стр)
4)120+80=200(стр)
5)320-200=120(стр)

Answer 2

Problem Analysis

To solve this problem, we need to determine the number of pages remaining in the book after reading 1/4 of the total pages and then reading 1/2 of the remaining pages.

Solution

Let's break down the problem step by step:

1. The total number of pages in the book is 320. 2. We read 1/4 of the total pages, which is (1/4) * 320 = 80 pages. 3. After reading 80 pages, we have 320 - 80 = 240 pages remaining. 4. We then read 1/2 of the remaining pages, which is (1/2) * 240 = 120 pages. 5. Therefore, the number of pages left in the book is 240 - 120 = 120 pages.

So, there are 120 pages left in the book.

I hope this helps! Let me know if you have any further questions.