Question

Два переплётчика должны были переплести 384 книги.Один из них переплетал 5 книг в день и переплёл 160 книг.По сколько книг в день переплетал другой переплётчик, если они начали и закончили работу одновременно .решите пожалуйста ! по действиям с пояснениям и ответом

Answer 1

160:5=32 (дня) переплетал книги первый переплётчик.
384-160=224 (книги) переплёл второй переплётчик.
Второй переплётчик переплетал книги тоже 32 дня, т.к. по условию задачи они закончили работу одновременно.
224:32=7 (книг) в день переплетал второй переплётчик.
Ответ: 7 книг.

Answer 2

Problem Analysis

Two bookbinders were tasked with binding 384 books. One of them bound 5 books per day and finished binding 160 books. We need to determine how many books the other bookbinder bound per day if they started and finished the work simultaneously.

Solution

Let's assume the number of books the other bookbinder bound per day is x.

We know that the first bookbinder bound 5 books per day and finished binding 160 books. Therefore, we can set up the following equation:

5 books/day * number of days = 160 books

Solving for the number of days:

number of days = 160 books / 5 books/day = 32 days Since both bookbinders started and finished the work simultaneously, the second bookbinder also took 32 days to bind the books.

Now, let's determine how many books the second bookbinder bound per day. We can set up the following equation:

x books/day * 32 days = 384 books

Solving for x:

x books/day = 384 books / 32 days = 12 books/day

Therefore, the other bookbinder bound 12 books per day if they started and finished the work simultaneously.

Answer

The other bookbinder bound 12 books per day if they started and finished the work simultaneously.