Question

Даша прочитала 120 страниц ей осталось прочитать 40% страниц скоко всего строниц в книге

Answer 1

1) 100-40=60%-сколько она прочитала в процентах
2) 120:60=2 (стр) - сколько страниц в 1 проценте
3) 2*40=80 (стр)- сколько осталось прочитать
4) 120+80=200 (стр)
Ответ: всего в книге 20 страниц

Answer 2

Calculation of Total Number of Pages in the Book

To calculate the total number of pages in the book, we need to determine the number of pages Dasha has already read and the percentage of pages she has left to read.

Dasha has already read 120 pages, and she has 40% of the pages left to read.

To find the total number of pages in the book, we can use the following formula:

Total number of pages = Pages already read / (1 - Percentage left to read)

Plugging in the values, we get:

Total number of pages = 120 / (1 - 0.40)

Calculating this, we find:

Total number of pages = 120 / 0.60 = 200

Therefore, there are a total of 200 pages in the book.