Question

Оля за два дня прочитала половину всех страниц книги причем четверть из низ она прочитала в первый день сколько страниц в книге если в первый день она прочитала 10 страниц?

Answer 1

1) 10*4=40(стр.) Оля прочитала за 2 дня.
2) 40*2=80(стр.)
Ответ: 80 страниц  в книге.

Answer 2

Calculating the Number of Pages in the Book

To calculate the number of pages in the book, we can use the information provided. Let's break it down step by step.

1. Total Pages Read in Two Days: - Olga read half of the total pages in two days. - This means she read 50% of the book in two days.

2. Pages Read on the First Day: - Olga read a quarter of the remaining pages on the first day. - This means she read 25% of the remaining pages on the first day.

3. Given Information: - Olga read 10 pages on the first day.

Calculation

To calculate the total number of pages in the book, we can use the given information to work backward.

1. Total Pages Read in Two Days: - If Olga read half of the total pages in two days, and she read 10 pages on the first day, we can calculate the total number of pages using the formula: - Total Pages = (Pages Read on the First Day) / (Percentage Read on the First Day) * 100 - Total Pages = 10 / 25 * 100 - Total Pages = 40

Therefore, the total number of pages in the book is 40.