Question

Решите задачуВ первый день каникул мальчик прочитал 3/4 всей книги. во второй день—18 страниц что составило 2/9 прочитанного в первый день.Сколько страниц прочитал мальчик за два дня?

Answer 1

18/2=9
9×9=81страниц в первый день
81+18=99 за два дня

Answer 2

Problem Analysis

The problem states that on the first day of vacation, a boy read 3/4 of a book. On the second day, he read 18 pages, which is 2/9 of what he read on the first day. We need to determine how many pages the boy read in total over the two days.

Calculation

Let's assume that the total number of pages in the book is represented by x.

On the first day, the boy read 3/4 of the book, which is equal to (3/4) * x pages.

On the second day, the boy read 18 pages, which is 2/9 of what he read on the first day. So, we can set up the equation:

(2/9) * [(3/4) * x] = 18

To find the value of x, we can solve this equation.

Solution

To solve the equation, we can follow these steps:

1. Multiply 2/9 by 3/4 to get (2/9) * (3/4) = 6/36 = 1/6. 2. Multiply 1/6 by x to get (1/6) * x = 18. 3. Solve for x by multiplying both sides of the equation by 6: x = 18 * 6 = 108.

Therefore, the total number of pages in the book (x) is 108.

To find the number of pages the boy read in two days, we add the number of pages he read on the first day (3/4 * 108) and the number of pages he read on the second day (18):

(3/4 * 108) + 18 = 81 + 18 = 99.

Therefore, the boy read 99 pages in total over the two days.

Answer

The boy read 99 pages in total over the two days.

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