Question

Реши задачу. (Ответ округли до целых). Андрей печатает со скоростью 144 символов в минуту. Найди время, которое потребуется Андрею для того, чтобы напечатать 439 страниц(-у); каждая страница содержит 42 строк, в каждая строка содержит 53 символа.​

Answer 1

Всего Андрею необходимо напечатать 439 * 42 * 53 = 977214 символов.

Количество минут, которое он потратит: 977214 / 144 = 6786,208. Округлив получаем 6786 минут или 113 часов

Ответ: 6786 минут = 113 часов

Answer 2

Problem Analysis

To find the time it will take for Andrey to type a certain number of pages, we need to calculate the total number of characters he needs to type and then divide it by his typing speed.

Calculation

Given: - Andrey's typing speed: 144 characters per minute - Number of pages: 439 - Number of lines per page: 42 - Number of characters per line: 53

To find the total number of characters Andrey needs to type, we can multiply the number of pages by the number of lines per page and the number of characters per line:

Total number of characters = Number of pages * Number of lines per page * Number of characters per line

Substituting the given values:

Total number of characters = 439 * 42 * 53

Now, to find the time it will take for Andrey to type these characters, we can divide the total number of characters by his typing speed:

Time = Total number of characters / Typing speed

Substituting the given values:

Time = (439 * 42 * 53) / 144

Let's calculate the result.