Question

задача в первый день засеяли 2\9 поля во второй 4\9.Известно что за два дня засеяли 72га.Найди общею площадь.

Answer 1

1) сколько засеяли за два дня в долях : 2/9 + 4/9 = 6/9 = 2/3 . По условию задачи это равно 72 га
2) находим общую площадь 72 /  2/3  = 108 га
Ответ : Общая площадь равна 108 га

Answer 2

Problem Analysis

We are given that on the first day, 2/9 of the fields were sown, and on the second day, 4/9 of the fields were sown. We also know that the total area sown in two days is 72 hectares. We need to find the total area of the fields.

Solution

Let's assume the total area of the fields is x hectares.

On the first day, 2/9 of the fields were sown, which is equal to (2/9) * x hectares.

On the second day, 4/9 of the fields were sown, which is equal to (4/9) * x hectares.

According to the given information, the total area sown in two days is 72 hectares. So, we can write the equation:

(2/9) * x + (4/9) * x = 72

Simplifying the equation:

(6/9) * x = 72

Multiplying both sides of the equation by 9/6 to isolate x:

x = (72 * 9) / 6

x = 108 hectares

Answer

The total area of the fields is 108 hectares.